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data-work-id="29789283"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/29789283/Effects_of_climate_on_organic_carbon_and_the_ratio_of_planktonic_to_benthic_primary_producers_in_a_subarctic_lake_during_the_past_45_years"><img alt="Research paper thumbnail of Effects of climate on organic carbon and the ratio of planktonic to benthic primary producers in a subarctic lake during the past 45 years" class="work-thumbnail" src="https://attachments.academia-assets.com/50245421/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/29789283/Effects_of_climate_on_organic_carbon_and_the_ratio_of_planktonic_to_benthic_primary_producers_in_a_subarctic_lake_during_the_past_45_years">Effects of climate on organic carbon and the ratio of planktonic to benthic primary producers in a subarctic lake during the past 45 years</a></div><div class="wp-workCard_item"><span>Limnology and Oceanography</span><span>, Sep 1, 2009</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">The effects of climatic variables on lake-water total organic carbon (TOC) concentrations and ben...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">The effects of climatic variables on lake-water total organic carbon (TOC) concentrations and benthic and pelagic primary producers during the past 45 yr were assessed using the sediment records of two subarctic lakes, one with mires and one without mires connected to the lake. The lake with a mire showed large and synchronous changes in the planktonic to benthic (P : B) ratio of diatoms and concentrations of TOC inferred from nearinfrared spectroscopy. During periods of warm temperatures, high precipitation, and long ice-free conditions, we inferred high TOC in the lake, and the diatom community was dominated by planktonic species. The stable carbon isotopic (d 13 C) values of sediment organic matter were negatively correlated with inferred TOC concentration and P : B ratio. We suggest that the changes in TOC and P : B ratio were a result of changing climate, permafrost degradation, and related changes in the catchment. Terrestrial organic matter, by its strong effect on the penetration of light through the lake water, possibly affected the habitats available for benthic photosynthesis and thus the d 13 C of the sediment organic matter. The large changes in recent times may also be because of unusually long ice-free periods, warmer temperatures, and other associated limnological changes. The lake with no mire next to the lake showed only minor changes in lake-water TOC during the same period and P : B ratio remained almost constant until the past 5 yr, when the P : B ratio increased rapidly. The observed changes in P : B ratio within this lake may be because of complex interactions of several climate-related variables.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="1bda09e2ce1dfc8f85dd1fb86ff7ea13" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":50245421,"asset_id":29789283,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/50245421/download_file?s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="29789283"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="29789283"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 29789283; 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$(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="29789281"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" rel="nofollow" href="https://www.academia.edu/29789281/Fourier_transform_infrared_spectroscopy_a_technique_for_rapid_quantitative_analysis_of_biogeochemical_properties_from_Lake_El_gygytgyn"><img alt="Research paper thumbnail of Fourier transform infrared spectroscopy: a technique for rapid, quantitative analysis of biogeochemical properties from Lake El gygytgyn" class="work-thumbnail" src="https://a.academia-assets.com/images/blank-paper.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" rel="nofollow" href="https://www.academia.edu/29789281/Fourier_transform_infrared_spectroscopy_a_technique_for_rapid_quantitative_analysis_of_biogeochemical_properties_from_Lake_El_gygytgyn">Fourier transform infrared spectroscopy: a technique for rapid, quantitative analysis of biogeochemical properties from Lake El gygytgyn</a></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Here we present Fourier transform infrared spectroscopy (FTIRS) as a fast and cost efficient anal...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">Here we present Fourier transform infrared spectroscopy (FTIRS) as a fast and cost efficient analytical tool for quantitative estimations of biogenic silica (BSi), total nitrogen (TN), total organic carbon (TOC), and total inorganic carbon (TIC) in lacustrine sediment. Simultaneous inference of these components is possible because IR-spectra in the MIR-region contain a wide variety of information on minerogenic and organic substances. The technique requires only small amounts (0.01g dry weight) of sample material and negligible sample pre-treatments. In this study the FTIRS technique is applied to sediment successions from the ICDP deep drilling site Lake El gygytgyn, NE Siberia. FTIRS calibrations for BSi, TN, TOC, and TIC yielded good statistical performances and emphasize the potential of the technique for high-resolution investigations of long sediment successions. This is particularly crucial since the sediment successions recovered during the winter/spring 2009 ICDP campaign a...</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="29789281"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="29789281"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 29789281; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=29789281]").text(description); $(".js-view-count[data-work-id=29789281]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 29789281; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='29789281']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-a9bf3a2bc8c89fa2a77156577594264ee8a0f214d74241bc0fcd3f69f8d107ac.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (false){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "-1" } } $('.js-work-strip[data-work-id=29789281]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":29789281,"title":"Fourier transform infrared spectroscopy: a technique for rapid, quantitative analysis of biogeochemical properties from Lake El gygytgyn","internal_url":"https://www.academia.edu/29789281/Fourier_transform_infrared_spectroscopy_a_technique_for_rapid_quantitative_analysis_of_biogeochemical_properties_from_Lake_El_gygytgyn","owner_id":18041365,"coauthors_can_edit":true,"owner":{"id":18041365,"first_name":"Laura","middle_initials":null,"last_name":"Cunningham","page_name":"LauraCunningham1","domain_name":"independent","created_at":"2014-10-05T22:19:50.106-07:00","display_name":"Laura Cunningham","url":"https://independent.academia.edu/LauraCunningham1"},"attachments":[]}, dispatcherData: dispatcherData }); $(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="29789280"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" rel="nofollow" href="https://www.academia.edu/29789280/Reconstructions_of_surface_ocean_conditions_from_the_northeast_Atlantic_and_Nordic_seas_during_the_last_millennium"><img alt="Research paper thumbnail of Reconstructions of surface ocean conditions from the northeast Atlantic and Nordic seas during the last millennium" class="work-thumbnail" src="https://a.academia-assets.com/images/blank-paper.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" rel="nofollow" href="https://www.academia.edu/29789280/Reconstructions_of_surface_ocean_conditions_from_the_northeast_Atlantic_and_Nordic_seas_during_the_last_millennium">Reconstructions of surface ocean conditions from the northeast Atlantic and Nordic seas during the last millennium</a></div><div class="wp-workCard_item wp-workCard--coauthors"><span>by </span><span><a class="" data-click-track="profile-work-strip-authors" href="https://independent.academia.edu/LauraCunningham1">Laura Cunningham</a>, <a class="" data-click-track="profile-work-strip-authors" href="https://independent.academia.edu/KatrineHusum">Katrine Husum</a>, and <a class="" data-click-track="profile-work-strip-authors" href="https://independent.academia.edu/Bj%C3%B6rnEGunnarson">Björn E. Gunnarson</a></span></div><div class="wp-workCard_item"><span>The Holocene</span><span>, 2013</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="29789280"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="29789280"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 29789280; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=29789280]").text(description); $(".js-view-count[data-work-id=29789280]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 29789280; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='29789280']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-a9bf3a2bc8c89fa2a77156577594264ee8a0f214d74241bc0fcd3f69f8d107ac.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (false){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "-1" } } $('.js-work-strip[data-work-id=29789280]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":29789280,"title":"Reconstructions of surface ocean conditions from the northeast Atlantic and Nordic seas during the last millennium","internal_url":"https://www.academia.edu/29789280/Reconstructions_of_surface_ocean_conditions_from_the_northeast_Atlantic_and_Nordic_seas_during_the_last_millennium","owner_id":18041365,"coauthors_can_edit":true,"owner":{"id":18041365,"first_name":"Laura","middle_initials":null,"last_name":"Cunningham","page_name":"LauraCunningham1","domain_name":"independent","created_at":"2014-10-05T22:19:50.106-07:00","display_name":"Laura Cunningham","url":"https://independent.academia.edu/LauraCunningham1"},"attachments":[]}, dispatcherData: dispatcherData }); $(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="15238759"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/15238759/Shifts_in_precipitation_during_the_last_millennium_in_northern_Scandinavia_from_lacustrine_isotope_records"><img alt="Research paper thumbnail of Shifts in precipitation during the last millennium in northern Scandinavia from lacustrine isotope records" class="work-thumbnail" src="https://attachments.academia-assets.com/43408722/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/15238759/Shifts_in_precipitation_during_the_last_millennium_in_northern_Scandinavia_from_lacustrine_isotope_records">Shifts in precipitation during the last millennium in northern Scandinavia from lacustrine isotope records</a></div><div class="wp-workCard_item wp-workCard--coauthors"><span>by </span><span><a class="" data-click-track="profile-work-strip-authors" href="https://independent.academia.edu/ChristianBigler">Christian Bigler</a>, <a class="" data-click-track="profile-work-strip-authors" href="https://shmm.academia.edu/JonasBergman">Jonas Bergman</a>, <a class="" data-click-track="profile-work-strip-authors" href="https://independent.academia.edu/LauraCunningham1">Laura Cunningham</a>, <a class="" data-click-track="profile-work-strip-authors" href="https://independent.academia.edu/TGoslar">T. Goslar</a>, and <a class="" data-click-track="profile-work-strip-authors" href="https://independent.academia.edu/AnnikaBerntsson">Annika Berntsson</a></span></div><div class="wp-workCard_item"><span>Quaternary Science Reviews</span><span>, 2013</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Here we present d 18 O diatom data from two high-latitude lakes; one has short residence time and...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">Here we present d 18 O diatom data from two high-latitude lakes; one has short residence time and a water isotopic composition (d 18 O lake ) that fluctuate due to seasonal variations in precipitation and temperature, and the other has d 18 O lake that is influenced by longer lake water residence times and evaporation. The d 18 O diatom records reveal common responses to precipitation forcing over the past millennium. Relatively wet summers are inferred from d 18 O diatom between 1000 and 1080 AD, 1300 and 1440 AD, and during the early 19th century, coincided with periods of high cloud cover inferred from tree-ring carbon isotopes, and other data for high Arctic Oscillation index. While relatively dry summers with increasing influence of winter snow are indicated between 1600 and 1750 AD. The co-response between carbon isotopes in trees and oxygen isotopes in diatoms strengthens the relationship between cloud cover and precipitation and the hypothesis that these changes were the result of significant regional shifts in atmospheric circulation.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="9440fe66a7ca562797ab42511099a019" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":43408722,"asset_id":15238759,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/43408722/download_file?s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="15238759"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="15238759"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 15238759; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=15238759]").text(description); $(".js-view-count[data-work-id=15238759]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 15238759; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='15238759']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-a9bf3a2bc8c89fa2a77156577594264ee8a0f214d74241bc0fcd3f69f8d107ac.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (true){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "9440fe66a7ca562797ab42511099a019" } } $('.js-work-strip[data-work-id=15238759]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":15238759,"title":"Shifts in precipitation during the last millennium in northern Scandinavia from lacustrine isotope records","internal_url":"https://www.academia.edu/15238759/Shifts_in_precipitation_during_the_last_millennium_in_northern_Scandinavia_from_lacustrine_isotope_records","owner_id":34310257,"coauthors_can_edit":true,"owner":{"id":34310257,"first_name":"Christian","middle_initials":null,"last_name":"Bigler","page_name":"ChristianBigler","domain_name":"independent","created_at":"2015-08-27T23:00:36.425-07:00","display_name":"Christian Bigler","url":"https://independent.academia.edu/ChristianBigler"},"attachments":[{"id":43408722,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/43408722/thumbnails/1.jpg","file_name":"Shifts_in_precipitation_during_the_last_20160305-2229-r9quiu.pdf","download_url":"https://www.academia.edu/attachments/43408722/download_file","bulk_download_file_name":"Shifts_in_precipitation_during_the_last.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/43408722/Shifts_in_precipitation_during_the_last_20160305-2229-r9quiu-libre.pdf?1457239144=\u0026response-content-disposition=attachment%3B+filename%3DShifts_in_precipitation_during_the_last.pdf\u0026Expires=1740584104\u0026Signature=eNDaI7RYrOs2lPpmTRi8NThxnxb8qvBRW4e7J3X1PBIILTvuslVFWFN3CYvTF-dALc6V7Exu-iwDsqbey9HrY2kkk38l6pR3DZgKEolN5gTrzmWtEwann4EmK-96NadXIwkfouubrcPeo0m5-R~OX8CEEC-T6srxUm7TrBOUiLzq03jLLGRNEP21-C5drmgUToJGwYbznXx8EhrJqnQbYstaoyBATKN2G0DnoHapCLYAvb9yTjXHSpL7MyHJQDiUJMUtiQddgfE2ndhw3qURqIqvCPrib-X1dum~Ld5CaWdTIR7dw9DD8ZO4OHd85HzRnA-bQyszC10mn4GSCFIeog__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}]}, dispatcherData: dispatcherData }); $(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="29789279"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" rel="nofollow" href="https://www.academia.edu/29789279/The_influence_of_natural_environmental_factors_on_benthic_diatom_communities_from_the_Windmill_Islands_Antarctica"><img alt="Research paper thumbnail of The influence of natural environmental factors on benthic diatom communities from the Windmill Islands, Antarctica" class="work-thumbnail" src="https://a.academia-assets.com/images/blank-paper.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" rel="nofollow" href="https://www.academia.edu/29789279/The_influence_of_natural_environmental_factors_on_benthic_diatom_communities_from_the_Windmill_Islands_Antarctica">The influence of natural environmental factors on benthic diatom communities from the Windmill Islands, Antarctica</a></div><div class="wp-workCard_item"><span>Phycologia</span><span>, 2004</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">The species composition of benthic diatom communities responds rapidly to environmental change. A...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">The species composition of benthic diatom communities responds rapidly to environmental change. At four shallow benthic sites in the Windmill Islands, Casey, East Antarctica, redundancy analysis indicated that changes in sediment grain-size, light availability and water depth ...</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="29789279"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="29789279"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 29789279; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); 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</script> <div class="js-work-strip profile--work_container" data-work-id="20013582"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/20013582/Climatic_variability_during_the_last_interglacial_inferred_from_geochemical_proxies_in_the_Lake_Elgygytgyn_sediment_record"><img alt="Research paper thumbnail of Climatic variability during the last interglacial inferred from geochemical proxies in the Lake El'gygytgyn sediment record" class="work-thumbnail" src="https://attachments.academia-assets.com/41177027/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/20013582/Climatic_variability_during_the_last_interglacial_inferred_from_geochemical_proxies_in_the_Lake_Elgygytgyn_sediment_record">Climatic variability during the last interglacial inferred from geochemical proxies in the Lake El'gygytgyn sediment record</a></div><div class="wp-workCard_item wp-workCard--coauthors"><span>by </span><span><a class="" data-click-track="profile-work-strip-authors" href="https://independent.academia.edu/OlafJuschus">Olaf Juschus</a> and <a class="" data-click-track="profile-work-strip-authors" href="https://independent.academia.edu/LauraCunningham1">Laura Cunningham</a></span></div><div class="wp-workCard_item"><span>Palaeogeography, Palaeoclimatology, Palaeoecology</span><span>, 2013</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">The Last Interglacial Period (LIP) is often regarded as a good analogue for potential climatic co...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">The Last Interglacial Period (LIP) is often regarded as a good analogue for potential climatic conditions under predicted global warming scenarios. Despite this, there is still debate over the nature, duration and frequency of climatic changes during this period. One particularly contentious issue has been the apparent evidence of climatic instability identified in many marine cores but seemingly lacking from many terrestrial archives, especially within the Arctic, a key region for global climate change research. In this paper, geochemical records from Lake El'gygytgyn, north-eastern Russia, are used to infer past climatic changes during the LIP from within the high Arctic. With a sampling resolution of~20-~90 years, these records offer the potential for detailed, high-resolution palaeoclimate reconstruction. This study shows that the LIP commenced in central Chukotkã 129 thousand years ago (ka), with the warmest climatic conditions occurring between~128 and 127 ka before being interrupted by a short-lived cold reversal. Mild climatic conditions then persisted until~122 ka when a marked reduction in the sedimentation rate suggests a decrease in precipitation. A further climatic deterioration at~118 ka marks the return to glacial conditions. This study highlights the value of incorporating several geochemical proxies when inferring past climatic conditions, thus providing the potential to identify signals related to environmental change within the catchment. We also demonstrate the importance of considering how changes in sedimentation rate influence proxy records, in order to develop robust palaeoenvironmental reconstructions.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="c1ddc5f67ee49526713b1faabec422f9" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":41177027,"asset_id":20013582,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/41177027/download_file?s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="20013582"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="20013582"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 20013582; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=20013582]").text(description); $(".js-view-count[data-work-id=20013582]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 20013582; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='20013582']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-a9bf3a2bc8c89fa2a77156577594264ee8a0f214d74241bc0fcd3f69f8d107ac.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (true){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "c1ddc5f67ee49526713b1faabec422f9" } } $('.js-work-strip[data-work-id=20013582]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":20013582,"title":"Climatic variability during the last interglacial inferred from geochemical proxies in the Lake El'gygytgyn sediment record","internal_url":"https://www.academia.edu/20013582/Climatic_variability_during_the_last_interglacial_inferred_from_geochemical_proxies_in_the_Lake_Elgygytgyn_sediment_record","owner_id":40921523,"coauthors_can_edit":true,"owner":{"id":40921523,"first_name":"Olaf","middle_initials":null,"last_name":"Juschus","page_name":"OlafJuschus","domain_name":"independent","created_at":"2016-01-04T08:18:07.331-08:00","display_name":"Olaf Juschus","url":"https://independent.academia.edu/OlafJuschus"},"attachments":[{"id":41177027,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/41177027/thumbnails/1.jpg","file_name":"Climatic_variability_during_the_last_int20160115-6095-en9i3j.pdf","download_url":"https://www.academia.edu/attachments/41177027/download_file","bulk_download_file_name":"Climatic_variability_during_the_last_int.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/41177027/Climatic_variability_during_the_last_int20160115-6095-en9i3j-libre.pdf?1452846265=\u0026response-content-disposition=attachment%3B+filename%3DClimatic_variability_during_the_last_int.pdf\u0026Expires=1740575340\u0026Signature=RudNxPO2qCJcBS27E3Y6aAlqYtN4zGK13oypKM1lNAZ7-zlnMM7jP8pUXamH2~UiXZRwQzBPR8Ukk0mz~3TGQWgWmMw2I6UR2qOBDCwYWuBgwKqaLPuBzqNHUO1P9GDVBO4FyjG-z2MmwjieHcxGiJXjxzntbdpzwvLthXy5BKPcJxr~Gkj9R4NqiuT6lYtXbXm2mZoAcc3SyryI145Q9JCPrSjfvOMIKvIwSizuFE93g5gfVgiwgoBjkabdj~Oh2FjiGXZ6d9XTPwo6ea4GLAE5~~BgNfnV2fUUG1Pk4fSV5RBv8mQ-gcmwwSdOoOOgKzfj7qDDj98gwhFr06QfDA__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}]}, dispatcherData: dispatcherData }); $(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="29789278"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" rel="nofollow" href="https://www.academia.edu/29789278/Benthic_diatom_community_response_to_environmental_variables_and_metal_concentrations_in_a_contaminated_bay_adjacent_to_Casey_Station_Antarctica"><img alt="Research paper thumbnail of Benthic diatom community response to environmental variables and metal concentrations in a contaminated bay adjacent to Casey Station, Antarctica" class="work-thumbnail" src="https://a.academia-assets.com/images/blank-paper.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" rel="nofollow" href="https://www.academia.edu/29789278/Benthic_diatom_community_response_to_environmental_variables_and_metal_concentrations_in_a_contaminated_bay_adjacent_to_Casey_Station_Antarctica">Benthic diatom community response to environmental variables and metal concentrations in a contaminated bay adjacent to Casey Station, Antarctica</a></div><div class="wp-workCard_item"><span>Marine Pollution Bulletin</span><span>, 2005</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">This study examined the effects of anthropogenic contaminants and environmental variables on the ...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">This study examined the effects of anthropogenic contaminants and environmental variables on the composition of benthic diatom communities within a contaminated bay adjacent to an abandoned waste disposal site in Antarctica. The combination of geographical, environmental and chemical data included in the study explained all of the variation observed within the diatom communities. The chemical data, particularly metal concentrations, explained 45.9% of variation in the diatom communities, once the effects of grain-size and spatial structure had been excluded. Of the metals, tin explained the greatest proportion of variation in the diatom communities (28%). Tin was very highly correlated (R2&amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;gt;0.95) with several other variables (copper, iron, lead, and sum of metals), all of which explained similarly high proportions of total variation. Grain-size data explained 23% of variation once the effects of spatial structure and the chemical data had been excluded. The pure spatial component explained only 1.8% of the total variance. The study demonstrates that much of the compositional variability observed in the bay can be explained by concentrations of metal contaminants.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="29789278"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="29789278"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 29789278; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=29789278]").text(description); $(".js-view-count[data-work-id=29789278]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 29789278; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='29789278']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-a9bf3a2bc8c89fa2a77156577594264ee8a0f214d74241bc0fcd3f69f8d107ac.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (false){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); 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} }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="29789277"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/29789277/Applying_paleolimnological_techniques_in_estuaries_a_cautionary_case_study_from_Moreton_Bay_Australia"><img alt="Research paper thumbnail of Applying paleolimnological techniques in estuaries: a cautionary case study from Moreton Bay, Australia" class="work-thumbnail" src="https://attachments.academia-assets.com/50245422/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/29789277/Applying_paleolimnological_techniques_in_estuaries_a_cautionary_case_study_from_Moreton_Bay_Australia">Applying paleolimnological techniques in estuaries: a cautionary case study from Moreton Bay, Australia</a></div><div class="wp-workCard_item"><span>Marine and Freshwater Research</span><span>, 2010</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="a1e791753fe0dda8b993a43456df6d9d" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":50245422,"asset_id":29789277,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/50245422/download_file?s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="29789277"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="29789277"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 29789277; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=29789277]").text(description); $(".js-view-count[data-work-id=29789277]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 29789277; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='29789277']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-a9bf3a2bc8c89fa2a77156577594264ee8a0f214d74241bc0fcd3f69f8d107ac.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (true){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); 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$(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="29789276"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/29789276/Effects_of_climate_on_organic_carbon_and_the_ratio_of_planktonic_to_benthic_primary_producers_in_a_subarctic_lake_during_the_past_45_years"><img alt="Research paper thumbnail of Effects of climate on organic carbon and the ratio of planktonic to benthic primary producers in a subarctic lake during the past 45 years" class="work-thumbnail" src="https://attachments.academia-assets.com/50245419/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/29789276/Effects_of_climate_on_organic_carbon_and_the_ratio_of_planktonic_to_benthic_primary_producers_in_a_subarctic_lake_during_the_past_45_years">Effects of climate on organic carbon and the ratio of planktonic to benthic primary producers in a subarctic lake during the past 45 years</a></div><div class="wp-workCard_item"><span>Limnology and Oceanography</span><span>, 2009</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">The effects of climatic variables on lake-water total organic carbon (TOC) concentrations and ben...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">The effects of climatic variables on lake-water total organic carbon (TOC) concentrations and benthic and pelagic primary producers during the past 45 yr were assessed using the sediment records of two subarctic lakes, one with mires and one without mires connected to the lake. The lake with a mire showed large and synchronous changes in the planktonic to benthic (P : B) ratio of diatoms and concentrations of TOC inferred from nearinfrared spectroscopy. During periods of warm temperatures, high precipitation, and long ice-free conditions, we inferred high TOC in the lake, and the diatom community was dominated by planktonic species. The stable carbon isotopic (d 13 C) values of sediment organic matter were negatively correlated with inferred TOC concentration and P : B ratio. We suggest that the changes in TOC and P : B ratio were a result of changing climate, permafrost degradation, and related changes in the catchment. Terrestrial organic matter, by its strong effect on the penetration of light through the lake water, possibly affected the habitats available for benthic photosynthesis and thus the d 13 C of the sediment organic matter. The large changes in recent times may also be because of unusually long ice-free periods, warmer temperatures, and other associated limnological changes. The lake with no mire next to the lake showed only minor changes in lake-water TOC during the same period and P : B ratio remained almost constant until the past 5 yr, when the P : B ratio increased rapidly. The observed changes in P : B ratio within this lake may be because of complex interactions of several climate-related variables.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="31cd9e8a8325bea28c509a19822e35f3" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":50245419,"asset_id":29789276,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/50245419/download_file?s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="29789276"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="29789276"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 29789276; 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$(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="29789275"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/29789275/Effects_of_Metal_and_Petroleum_Hydrocarbon_Contamination_on_Benthic_Diatom_Communities_Near_Casey_Station_Antarctica_An_Experimental_APPROACH1"><img alt="Research paper thumbnail of Effects of Metal and Petroleum Hydrocarbon Contamination on Benthic Diatom Communities Near Casey Station, Antarctica: An Experimental APPROACH1" class="work-thumbnail" src="https://attachments.academia-assets.com/50245418/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/29789275/Effects_of_Metal_and_Petroleum_Hydrocarbon_Contamination_on_Benthic_Diatom_Communities_Near_Casey_Station_Antarctica_An_Experimental_APPROACH1">Effects of Metal and Petroleum Hydrocarbon Contamination on Benthic Diatom Communities Near Casey Station, Antarctica: An Experimental APPROACH1</a></div><div class="wp-workCard_item"><span>Journal of Phycology</span><span>, 2003</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">The effects of metals and petroleum hydrocarbons on benthic marine diatom communities were assess...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">The effects of metals and petroleum hydrocarbons on benthic marine diatom communities were assessed using a manipulative field experiment at Casey Station, Antarctica. Uncontaminated, metal contaminated, and petroleum hydrocarbon contaminated sediments were deployed for 11 weeks during the 1999 austral summer. The treatments were deployed at three different locations: Brown Bay, which has elevated levels of anthropogenic contaminants, and two uncontaminated reference locations, O'Brien Bay and Sparkes Bay, the latter of which has naturally occurring high concentrations of some heavy metals. At each location, significant differences between the composition of diatom communities recruiting to control and petroleum hydrocarbon contaminated treatments were observed. Navicula directa (Smith) Ralfs occurred at lower abundances in the petroleum hydrocarbon contaminated treatments than in the control treatments. In contrast, Navicula cancellata Donkin occurred at higher relative abundances in both contaminated treatments relative to the control treatment. Interactions between treatment and location were also observed for several species, including Navicula glaciei Van Heurck. Significant differences in the overall community composition of diatom communities between control and metal contaminated treatments and metal contaminated and petroleum hydrocarbon contaminated treatments were only observed within Brown Bay. The location of deployment also had a significant influence on the composition of diatom communities. Brown Bay had higher abundances of Achnanthes brevipes Agardh but lower abundances of Navicula aff. cincta (Ehrenberg) Van Heurck than either reference locations. This experiment demon-strated that benthic diatom communities are sensitive to sediment contamination and would be suitable for future monitoring work within this and other areas of Antarctica.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="ae921dd44d65e73783099819dda8e006" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":50245418,"asset_id":29789275,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/50245418/download_file?s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="29789275"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="29789275"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 29789275; 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$(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="29789274"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" rel="nofollow" href="https://www.academia.edu/29789274/Fourier_transform_infrared_spectroscopy_a_new_method_for_rapid_determination_of_total_organic_and_inorganic_carbon_and_biogenic_silica_concentration_in_lake_sediments"><img alt="Research paper thumbnail of Fourier transform infrared spectroscopy, a new method for rapid determination of total organic and inorganic carbon and biogenic silica concentration in lake sediments" class="work-thumbnail" src="https://a.academia-assets.com/images/blank-paper.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" rel="nofollow" href="https://www.academia.edu/29789274/Fourier_transform_infrared_spectroscopy_a_new_method_for_rapid_determination_of_total_organic_and_inorganic_carbon_and_biogenic_silica_concentration_in_lake_sediments">Fourier transform infrared spectroscopy, a new method for rapid determination of total organic and inorganic carbon and biogenic silica concentration in lake sediments</a></div><div class="wp-workCard_item wp-workCard--coauthors"><span>by </span><span><a class="" data-click-track="profile-work-strip-authors" href="https://independent.academia.edu/LauraCunningham1">Laura Cunningham</a> and <a class="" data-click-track="profile-work-strip-authors" href="https://lu.academia.edu/PerPersson">Per Persson</a></span></div><div class="wp-workCard_item"><span>Journal of Paleolimnology</span><span>, 2010</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">... carbon and biogenic silica concentration in lake sediments Peter Rosén Æ Hendrik Vogel Æ Laur...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">... carbon and biogenic silica concentration in lake sediments Peter Rosén Æ Hendrik Vogel Æ Laura Cunningham Æ Nina Reuss Æ Daniel J. Conley Æ Per Persson ... Furthermore, some lakes contain several hundred meters of sediment, including Lake Baikal (Peck et al. ...</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="29789274"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="29789274"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 29789274; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=29789274]").text(description); $(".js-view-count[data-work-id=29789274]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 29789274; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='29789274']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-a9bf3a2bc8c89fa2a77156577594264ee8a0f214d74241bc0fcd3f69f8d107ac.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (false){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "-1" } } $('.js-work-strip[data-work-id=29789274]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":29789274,"title":"Fourier transform infrared spectroscopy, a new method for rapid determination of total organic and inorganic carbon and biogenic silica concentration in lake sediments","internal_url":"https://www.academia.edu/29789274/Fourier_transform_infrared_spectroscopy_a_new_method_for_rapid_determination_of_total_organic_and_inorganic_carbon_and_biogenic_silica_concentration_in_lake_sediments","owner_id":18041365,"coauthors_can_edit":true,"owner":{"id":18041365,"first_name":"Laura","middle_initials":null,"last_name":"Cunningham","page_name":"LauraCunningham1","domain_name":"independent","created_at":"2014-10-05T22:19:50.106-07:00","display_name":"Laura Cunningham","url":"https://independent.academia.edu/LauraCunningham1"},"attachments":[]}, dispatcherData: dispatcherData }); $(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="29789273"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" rel="nofollow" href="https://www.academia.edu/29789273/Benthic_diatom_communities_as_indicators_of_anthropogenic_metal_contamination_at_Casey_Station_Antarctica"><img alt="Research paper thumbnail of Benthic diatom communities as indicators of anthropogenic metal contamination at Casey Station, Antarctica" class="work-thumbnail" src="https://a.academia-assets.com/images/blank-paper.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" rel="nofollow" href="https://www.academia.edu/29789273/Benthic_diatom_communities_as_indicators_of_anthropogenic_metal_contamination_at_Casey_Station_Antarctica">Benthic diatom communities as indicators of anthropogenic metal contamination at Casey Station, Antarctica</a></div><div class="wp-workCard_item"><span>Journal of Paleolimnology</span><span>, 2005</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Laura Cunningham, Ben Raymond, Ian Snape and Martin J. Riddle* Department of the Environment and ...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">Laura Cunningham, Ben Raymond, Ian Snape and Martin J. Riddle* Department of the Environment and Heritage, Australian Antarctic Division. Channel Highway, Kingston 7050, Australia; *Author for correspondence (e-mail: <a href="mailto:martin.riddle@aad.gov.au" rel="nofollow">martin.riddle@aad.gov.au</a>) ... Received 2 July 2003; ...</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="29789273"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="29789273"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 29789273; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=29789273]").text(description); $(".js-view-count[data-work-id=29789273]").attr('title', description).tooltip(); 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</script> <div class="js-work-strip profile--work_container" data-work-id="29789272"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/29789272/Universally_Applicable_Model_for_the_Quantitative_Determination_of_Lake_Sediment_Composition_Using_Fourier_Transform_Infrared_Spectroscopy"><img alt="Research paper thumbnail of Universally Applicable Model for the Quantitative Determination of Lake Sediment Composition Using Fourier Transform Infrared Spectroscopy" class="work-thumbnail" src="https://attachments.academia-assets.com/50245417/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/29789272/Universally_Applicable_Model_for_the_Quantitative_Determination_of_Lake_Sediment_Composition_Using_Fourier_Transform_Infrared_Spectroscopy">Universally Applicable Model for the Quantitative Determination of Lake Sediment Composition Using Fourier Transform Infrared Spectroscopy</a></div><div class="wp-workCard_item wp-workCard--coauthors"><span>by </span><span><a class="" data-click-track="profile-work-strip-authors" href="https://independent.academia.edu/LauraCunningham1">Laura Cunningham</a>, <a class="" data-click-track="profile-work-strip-authors" href="https://2ulaval.academia.edu/ReinhardPienitz">Reinhard Pienitz</a>, and <a class="" data-click-track="profile-work-strip-authors" href="https://lu.academia.edu/PerPersson">Per Persson</a></span></div><div class="wp-workCard_item"><span>Environmental Science & Technology</span><span>, 2011</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Multiproxy approaches are often required for comprehensive paleolimnological reconstructions as i...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">Multiproxy approaches are often required for comprehensive paleolimnological reconstructions as information from an individual proxy indicator can be supported by a suite of other indicators thus reducing potential errors or ambiguities. Analyzing a suite of indicators is both time-consuming and expensive, particularly when assessing long sediment records. 1 In high-resolution studies, the amount of sample material available from each horizon can also be a limiting factor. Conventional measurements of biogeochemical constituents (including biogenic silica (BSi)) are laborious, time-consuming, and imprecise, 2 thus alternative approaches are required. X-ray fluorescence scanners and multisensor core loggers can provide highly resolved, qualitative and semiquantitative information on the inorganic geochemistry, mineralogy, and magnetic properties. Fourier transform infrared spectroscopy (FTIRS) analysis also offers a promising alternative to conventional techniques due to the wealth of information on minerogenic and organic sediment constituents contained in FTIR spectra, the small sample size required, and the relative speed of analysis. 3À8 The basic principles of FTIRS are that infrared radiation can excite molecular vibrations and, as a consequence of the quantum mechanical behavior, the radiation will be absorbed at specific energies, depending on the composition of the material examined. As most compounds display characteristic infrared spectra, changes in the organic and inorganic composition of sediments can be determined, including changes in carbohydrate, fatty acid, humic material, silicate, and carbonate concentrations. 3À5 This information is of particular interest for paleolimnological studies since sediment is commonly composed of a mixture of various ABSTRACT: Fourier transform infrared spectroscopy (FTIRS) can provide detailed information on organic and minerogenic constituents of sediment records. Based on a large number of sediment samples of varying age (0À340 000 yrs) and from very diverse lake settings in and Sweden, we have developed universally applicable calibration models for the quantitative determination of biogenic silica (BSi; n = 816), total inorganic carbon (TIC; n = 879), and total organic carbon (TOC; n = 3164) using FTIRS. These models are based on the differential absorbance of infrared radiation at specific wavelengths with varying concentrations of individual parameters, due to molecular vibrations associated with each parameter. The calibration models have low prediction errors and the predicted values are highly correlated with conventionally measured values (R = 0.94À0.99). Robustness tests indicate the accuracy of the newly developed FTIRS calibration models is similar to that of conventional geochemical analyses. Consequently FTIRS offers a useful and rapid alternative to conventional analyses for the quantitative determination of BSi, TIC, and TOC. The rapidity, cost-effectiveness, and small sample size required enables FTIRS determination of geochemical properties to be undertaken at higher resolutions than would otherwise be possible with the same resource allocation, thus providing crucial sedimentological information for climatic and environmental reconstructions.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="b0dd3bea5ab74b18a80b3568a6b69e92" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":50245417,"asset_id":29789272,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/50245417/download_file?s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="29789272"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="29789272"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 29789272; 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$(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="29789271"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/29789271/Amplified_bioproductivity_during_Transition_IV_332_000_and_ndash_342_000_yr_ago_evidence_from_the_geochemical_record_of_Lake_Elgygytgyn"><img alt="Research paper thumbnail of Amplified bioproductivity during Transition IV (332 000&ndash;342 000 yr ago): evidence from the geochemical record of Lake El'gygytgyn" class="work-thumbnail" src="https://attachments.academia-assets.com/50245415/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/29789271/Amplified_bioproductivity_during_Transition_IV_332_000_and_ndash_342_000_yr_ago_evidence_from_the_geochemical_record_of_Lake_Elgygytgyn">Amplified bioproductivity during Transition IV (332 000&ndash;342 000 yr ago): evidence from the geochemical record of Lake El'gygytgyn</a></div><div class="wp-workCard_item"><span>Climate of the Past</span><span>, 2013</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">To date, terrestrial archives of long-term climatic change within the arctic region have widely b...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">To date, terrestrial archives of long-term climatic change within the arctic region have widely been restricted to ice cores from Greenland and, more recently, sediments from Lake El'gygytgyn in Northeast Arctic Russia. Sediments from this lake contain a paleoclimate record of glacial-interglacial cycles during the last three million years. Low 5 10 genic silica production. Following this sharp increase, bioproductivity remained high, but variable, for over a thousand years. This study reveals differences in the timing and magnitude of change within the ratio of silica to titanium (Si/Ti) and biogenic silica (BSi) records that would not be apparent in lower resolution studies. This has significant implications for the increasingly common use of Si/Ti data as an alternative to traditional 15 BSi measurements.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="b2bf3bfdc933972e046e4196f9d24277" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":50245415,"asset_id":29789271,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/50245415/download_file?s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="29789271"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="29789271"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 29789271; 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$(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="29789270"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/29789270/A_millennial_long_March_July_precipitation_reconstruction_for_southern_central_England"><img alt="Research paper thumbnail of A millennial long March–July precipitation reconstruction for southern-central England" class="work-thumbnail" src="https://attachments.academia-assets.com/50245420/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/29789270/A_millennial_long_March_July_precipitation_reconstruction_for_southern_central_England">A millennial long March–July precipitation reconstruction for southern-central England</a></div><div class="wp-workCard_item"><span>Climate Dynamics</span><span>, 2013</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">We present a millennial long dendroclimatic reconstruction of spring/summer precipitation for sou...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">We present a millennial long dendroclimatic reconstruction of spring/summer precipitation for southerncentral England. Previous research identified a significant moisture stress signal in ring-width data measured from oak trees growing in southern England. In this study, we build upon this earlier work, specifically targeting south-central England, to derive a well replicated oak ring-width composite chronology using both living and historical material. The data-set includes 352 living trees (AD 1629-2009) and 1540 individual historical series (AD 663-1925). The period expressed by at least 50 trees in any year is AD 980-2009. Calibration experiments identify the optimal seasonal predictand target as March-July precipitation (1901-2007: r 2 = 0.33). However, comparison with the long Kew Gardens precipitation record indicates a weakening in treegrowth/climate response from *1800 to 1920 which we speculate may be related to smoke and sulphur dioxide (SO 2 ) emissions at that time which may have also contributed to a decrease in tree productivity. The time-series derived using the regional curve standardisation method to capture lower frequency information shows a mediaeval period with alternating multi-decade-long dry and wet periods, with AD 1153-1172 being the wettest reconstructed 20-year period in the whole record. Drier conditions are prevalent from *1300 to the early sixteenth century followed by a period of increasing precipitation levels. The most recent four centuries of the record appear similar to the mediaeval period with multiple decade-long dry and wet periods. The late twentieth century is the second reconstructed wettest period. These centennial hydroclimatic trends are in broad agreement with independent regional scale hydroclimatic reconstructions from tree-ring (East Anglia), historical, speleothem and peat water level proxy archives in the United Kingdom and appear coupled with reconstructed sea surface temperature changes in the North Atlantic which in turn influence the Atlantic meridional overturning circulation and westerly airflow across the UK.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="fd984d8e1b56fbe71d74cb3b4420a1f6" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":50245420,"asset_id":29789270,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/50245420/download_file?s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="29789270"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="29789270"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 29789270; 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$(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="29789269"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" rel="nofollow" href="https://www.academia.edu/29789269/The_soggy_road_to_a_climatically_sensitive_8000_year_Scottish_pine_chronology"><img alt="Research paper thumbnail of The soggy road to a climatically sensitive 8000-year Scottish pine chronology" class="work-thumbnail" src="https://a.academia-assets.com/images/blank-paper.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" rel="nofollow" href="https://www.academia.edu/29789269/The_soggy_road_to_a_climatically_sensitive_8000_year_Scottish_pine_chronology">The soggy road to a climatically sensitive 8000-year Scottish pine chronology</a></div><div class="wp-workCard_item wp-workCard--coauthors"><span>by </span><span><a class="" data-click-track="profile-work-strip-authors" href="https://independent.academia.edu/LauraCunningham1">Laura Cunningham</a> and <a class="" data-click-track="profile-work-strip-authors" href="https://independent.academia.edu/annecrone">Anne Crone</a></span></div><div class="wp-workCard_item"><span>… 2010, held 2-7 May …</span><span>, 2010</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Title: The soggy road to a climatically sensitive 8000-year Scottish pine chronology. Authors: Wi...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">Title: The soggy road to a climatically sensitive 8000-year Scottish pine chronology. Authors: Wilson, Rob; Loader, Neil; Mills, Coralie; Crone, Anne; Edwards, Colin; Cunningham, Laura; Frith, Alex; Rydval, Milos. Affiliation: AA(St. ... Roslin, Edinburgh), AF(St. ...</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="29789269"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="29789269"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 29789269; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=29789269]").text(description); $(".js-view-count[data-work-id=29789269]").attr('title', description).tooltip(); 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The composite reconstructions are based on SST records from across the region, derived from a mixture of marine based proxies (diatoms, alkenones, oxygen isotopes and Mg/Ca ratios from planktonic and benthic foraminifera and shell increment widths of Arctica islandica). The records used within this study include 5 records from north of Iceland, 3 from Norway, one from Scotland, and one from the Rockall Trough (NW of Ireland). Data from all ten sites is available back to 1430, with data from 9 sites available back to 1255 AD. Although seven records extend back the full millennium this does not include any records from Norway, consequently the composite records presented here do not extend back this far. Several different approaches have been tested, such as using all the available data, or only incorporating screen...</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="14233288"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="14233288"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 14233288; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=14233288]").text(description); 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</script> <div class="js-work-strip profile--work_container" data-work-id="29789268"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" rel="nofollow" href="https://www.academia.edu/29789268/An_Eocene_moncotyledon_from_Nelly_Creek_Central_Australia_with_affinities_to_Hemerocallidaceae_Lilianae_Asparagales_"><img alt="Research paper thumbnail of An Eocene moncotyledon from Nelly Creek, Central Australia, with affinities to Hemerocallidaceae (Lilianae: Asparagales)" class="work-thumbnail" src="https://a.academia-assets.com/images/blank-paper.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" rel="nofollow" href="https://www.academia.edu/29789268/An_Eocene_moncotyledon_from_Nelly_Creek_Central_Australia_with_affinities_to_Hemerocallidaceae_Lilianae_Asparagales_">An Eocene moncotyledon from Nelly Creek, Central Australia, with affinities to Hemerocallidaceae (Lilianae: Asparagales)</a></div><div class="wp-workCard_item"><span>Alcheringa: An Australasian Journal of Palaeontology</span><span>, 2003</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">A monocotyledonous partial leaf macrofossil from Eocene beds at Nelly Creek near Lake Eyre in Cen...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">A monocotyledonous partial leaf macrofossil from Eocene beds at Nelly Creek near Lake Eyre in Central Australia is described. It is recognised as being close to several extant Australasian species of Dianella Lam. ex Juss.(Hemerocallidaceae), especially the D. odorata Blume/D. bambusifolia Hallier f. complex. However, because it has unique cuticular features relative to extant Hemerocallidaceae, the fossil is assigned to the new genus and species Dianellophyllum eocenicum Conran, Christophel &amp;amp;amp;amp; Cunningham.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="29789268"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="29789268"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 29789268; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); 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</script> <div class="js-work-strip profile--work_container" data-work-id="3583070"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" rel="nofollow" href="https://www.academia.edu/3583070/Reconstructing_temperatures_from_lake_sediments_in_northern_Europe_what_do_the_biological_proxies_really_tell_us"><img alt="Research paper thumbnail of Reconstructing temperatures from lake sediments in northern Europe: what do the biological proxies really tell us" class="work-thumbnail" src="https://a.academia-assets.com/images/blank-paper.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" rel="nofollow" href="https://www.academia.edu/3583070/Reconstructing_temperatures_from_lake_sediments_in_northern_Europe_what_do_the_biological_proxies_really_tell_us">Reconstructing temperatures from lake sediments in northern Europe: what do the biological proxies really tell us</a></div><div class="wp-workCard_item wp-workCard--coauthors"><span>by </span><span><a class="" data-click-track="profile-work-strip-authors" href="https://shmm.academia.edu/JonasBergman">Jonas Bergman</a> and <a class="" data-click-track="profile-work-strip-authors" href="https://independent.academia.edu/LauraCunningham1">Laura Cunningham</a></span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Over the past two decades considerable effort has been devoted to quantitatively reconstructing t...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">Over the past two decades considerable effort has been devoted to quantitatively reconstructing temperatures from biological proxies preserved in lake sediments, via transfer functions. Such transfer functions typically consist of modern sediment samples, collected over a broad environmental gradient. Correlations between the biological communities and environmental parameters observed over these broad gradients are assumed to be equally valid temporally. The predictive ability of such spatially based transfer functions has traditionally been assessed by comparisons of measured and inferred temperatures within the calibration sets, with little validation against historical data. Although statistical techniques such as bootstrapping may improve error estimation, this approach remains partly a circular argument. This raises the question of how reliable such reconstructions are for inferring past changes in temperature? In order to address this question, we used transfer functions to reconstruct July temperatures from diatoms and chironomids from several locations across northern Europe. The transfer functions used showed good internal calibration statistics (r2 = 0.66 - 0.91). The diatom and chironomid inferred July air temperatures were compared to local observational records. As the sediment records were non-annual, all data were first smoothed using a 15 yr moving average filter. None of the five biologically-inferred temperature records were correlated with the local meteorological records. Furthermore, diatom inferred temperatures did not agree with chironomid inferred temperatures from the same cores from the same sites. In an attempt to understand this poor performance the biological proxy data was compressed using principal component analysis (PCA), and the PCA axes compared to the local meteorological data. These analyses clearly demonstrated that July temperatures were not correlated with the biological data at these locations. Some correlations were observed between the biological proxies and autumn and spring temperatures, although this varied slightly between sites and proxies. For example, chironomid data from Iceland was most strongly correlated with temperatures in February, March and April whilst in northern Sweden, the chironomid data was most strongly correlated with temperatures in March, April and May. It is suggested that the biological data at these sites may be responding to changes in the length of the ice-free period or hydrological regimes (including snow melt), rather than temperature per se. Our findings demonstrate the need to validate inferred temperatures against local meteorological data. Where such validation cannot be undertaken, inferred temperature reconstructions should be treated cautiously.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="3583070"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="3583070"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 3583070; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=3583070]").text(description); $(".js-view-count[data-work-id=3583070]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 3583070; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='3583070']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-a9bf3a2bc8c89fa2a77156577594264ee8a0f214d74241bc0fcd3f69f8d107ac.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (false){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "-1" } } $('.js-work-strip[data-work-id=3583070]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":3583070,"title":"Reconstructing temperatures from lake sediments in northern Europe: what do the biological proxies really tell us","internal_url":"https://www.academia.edu/3583070/Reconstructing_temperatures_from_lake_sediments_in_northern_Europe_what_do_the_biological_proxies_really_tell_us","owner_id":4271046,"coauthors_can_edit":true,"owner":{"id":4271046,"first_name":"Jonas","middle_initials":null,"last_name":"Bergman","page_name":"JonasBergman","domain_name":"shmm","created_at":"2013-05-21T17:50:39.010-07:00","display_name":"Jonas Bergman","url":"https://shmm.academia.edu/JonasBergman"},"attachments":[]}, dispatcherData: dispatcherData }); $(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="29747657"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/29747657/Paleoecological_evidence_of_major_declines_in_total_organic_carbon_concentrations_since_the_nineteenth_century_in_four_nemoboreal_lakes"><img alt="Research paper thumbnail of Paleoecological evidence of major declines in total organic carbon concentrations since the nineteenth century in four nemoboreal lakes" class="work-thumbnail" src="https://attachments.academia-assets.com/50205992/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/29747657/Paleoecological_evidence_of_major_declines_in_total_organic_carbon_concentrations_since_the_nineteenth_century_in_four_nemoboreal_lakes">Paleoecological evidence of major declines in total organic carbon concentrations since the nineteenth century in four nemoboreal lakes</a></div><div class="wp-workCard_item wp-workCard--coauthors"><span>by </span><span><a class="" data-click-track="profile-work-strip-authors" href="https://su-se.academia.edu/EwaLind">Ewa Lind</a> and <a class="" data-click-track="profile-work-strip-authors" href="https://independent.academia.edu/LauraCunningham1">Laura Cunningham</a></span></div><div class="wp-workCard_item"><span>Journal of Paleolimnology</span><span>, 2011</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">This is an author produced version of a paper published in European Journal of Paleolimnology. Th...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">This is an author produced version of a paper published in European Journal of Paleolimnology. This paper has been peer-reviewed but does not include the final publisher proof-corrections or journal pagination.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="289055aacbfc61721ec83fc734f1f989" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":50205992,"asset_id":29747657,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/50205992/download_file?s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="29747657"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="29747657"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 29747657; 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$(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> </div><div class="profile--tab_content_container js-tab-pane tab-pane" data-section-id="6118993" id="papers"><div class="js-work-strip profile--work_container" data-work-id="29789283"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/29789283/Effects_of_climate_on_organic_carbon_and_the_ratio_of_planktonic_to_benthic_primary_producers_in_a_subarctic_lake_during_the_past_45_years"><img alt="Research paper thumbnail of Effects of climate on organic carbon and the ratio of planktonic to benthic primary producers in a subarctic lake during the past 45 years" class="work-thumbnail" src="https://attachments.academia-assets.com/50245421/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/29789283/Effects_of_climate_on_organic_carbon_and_the_ratio_of_planktonic_to_benthic_primary_producers_in_a_subarctic_lake_during_the_past_45_years">Effects of climate on organic carbon and the ratio of planktonic to benthic primary producers in a subarctic lake during the past 45 years</a></div><div class="wp-workCard_item"><span>Limnology and Oceanography</span><span>, Sep 1, 2009</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">The effects of climatic variables on lake-water total organic carbon (TOC) concentrations and ben...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">The effects of climatic variables on lake-water total organic carbon (TOC) concentrations and benthic and pelagic primary producers during the past 45 yr were assessed using the sediment records of two subarctic lakes, one with mires and one without mires connected to the lake. The lake with a mire showed large and synchronous changes in the planktonic to benthic (P : B) ratio of diatoms and concentrations of TOC inferred from nearinfrared spectroscopy. During periods of warm temperatures, high precipitation, and long ice-free conditions, we inferred high TOC in the lake, and the diatom community was dominated by planktonic species. The stable carbon isotopic (d 13 C) values of sediment organic matter were negatively correlated with inferred TOC concentration and P : B ratio. We suggest that the changes in TOC and P : B ratio were a result of changing climate, permafrost degradation, and related changes in the catchment. Terrestrial organic matter, by its strong effect on the penetration of light through the lake water, possibly affected the habitats available for benthic photosynthesis and thus the d 13 C of the sediment organic matter. The large changes in recent times may also be because of unusually long ice-free periods, warmer temperatures, and other associated limnological changes. The lake with no mire next to the lake showed only minor changes in lake-water TOC during the same period and P : B ratio remained almost constant until the past 5 yr, when the P : B ratio increased rapidly. The observed changes in P : B ratio within this lake may be because of complex interactions of several climate-related variables.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="1bda09e2ce1dfc8f85dd1fb86ff7ea13" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":50245421,"asset_id":29789283,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/50245421/download_file?s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="29789283"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="29789283"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 29789283; 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$(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="29789281"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" rel="nofollow" href="https://www.academia.edu/29789281/Fourier_transform_infrared_spectroscopy_a_technique_for_rapid_quantitative_analysis_of_biogeochemical_properties_from_Lake_El_gygytgyn"><img alt="Research paper thumbnail of Fourier transform infrared spectroscopy: a technique for rapid, quantitative analysis of biogeochemical properties from Lake El gygytgyn" class="work-thumbnail" src="https://a.academia-assets.com/images/blank-paper.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" rel="nofollow" href="https://www.academia.edu/29789281/Fourier_transform_infrared_spectroscopy_a_technique_for_rapid_quantitative_analysis_of_biogeochemical_properties_from_Lake_El_gygytgyn">Fourier transform infrared spectroscopy: a technique for rapid, quantitative analysis of biogeochemical properties from Lake El gygytgyn</a></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Here we present Fourier transform infrared spectroscopy (FTIRS) as a fast and cost efficient anal...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">Here we present Fourier transform infrared spectroscopy (FTIRS) as a fast and cost efficient analytical tool for quantitative estimations of biogenic silica (BSi), total nitrogen (TN), total organic carbon (TOC), and total inorganic carbon (TIC) in lacustrine sediment. Simultaneous inference of these components is possible because IR-spectra in the MIR-region contain a wide variety of information on minerogenic and organic substances. The technique requires only small amounts (0.01g dry weight) of sample material and negligible sample pre-treatments. In this study the FTIRS technique is applied to sediment successions from the ICDP deep drilling site Lake El gygytgyn, NE Siberia. FTIRS calibrations for BSi, TN, TOC, and TIC yielded good statistical performances and emphasize the potential of the technique for high-resolution investigations of long sediment successions. This is particularly crucial since the sediment successions recovered during the winter/spring 2009 ICDP campaign a...</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="29789281"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="29789281"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 29789281; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=29789281]").text(description); $(".js-view-count[data-work-id=29789281]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 29789281; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='29789281']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-a9bf3a2bc8c89fa2a77156577594264ee8a0f214d74241bc0fcd3f69f8d107ac.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (false){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "-1" } } $('.js-work-strip[data-work-id=29789281]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":29789281,"title":"Fourier transform infrared spectroscopy: a technique for rapid, quantitative analysis of biogeochemical properties from Lake El gygytgyn","internal_url":"https://www.academia.edu/29789281/Fourier_transform_infrared_spectroscopy_a_technique_for_rapid_quantitative_analysis_of_biogeochemical_properties_from_Lake_El_gygytgyn","owner_id":18041365,"coauthors_can_edit":true,"owner":{"id":18041365,"first_name":"Laura","middle_initials":null,"last_name":"Cunningham","page_name":"LauraCunningham1","domain_name":"independent","created_at":"2014-10-05T22:19:50.106-07:00","display_name":"Laura Cunningham","url":"https://independent.academia.edu/LauraCunningham1"},"attachments":[]}, dispatcherData: dispatcherData }); $(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="29789280"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" rel="nofollow" href="https://www.academia.edu/29789280/Reconstructions_of_surface_ocean_conditions_from_the_northeast_Atlantic_and_Nordic_seas_during_the_last_millennium"><img alt="Research paper thumbnail of Reconstructions of surface ocean conditions from the northeast Atlantic and Nordic seas during the last millennium" class="work-thumbnail" src="https://a.academia-assets.com/images/blank-paper.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" rel="nofollow" href="https://www.academia.edu/29789280/Reconstructions_of_surface_ocean_conditions_from_the_northeast_Atlantic_and_Nordic_seas_during_the_last_millennium">Reconstructions of surface ocean conditions from the northeast Atlantic and Nordic seas during the last millennium</a></div><div class="wp-workCard_item wp-workCard--coauthors"><span>by </span><span><a class="" data-click-track="profile-work-strip-authors" href="https://independent.academia.edu/LauraCunningham1">Laura Cunningham</a>, <a class="" data-click-track="profile-work-strip-authors" href="https://independent.academia.edu/KatrineHusum">Katrine Husum</a>, and <a class="" data-click-track="profile-work-strip-authors" href="https://independent.academia.edu/Bj%C3%B6rnEGunnarson">Björn E. Gunnarson</a></span></div><div class="wp-workCard_item"><span>The Holocene</span><span>, 2013</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="29789280"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="29789280"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 29789280; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=29789280]").text(description); $(".js-view-count[data-work-id=29789280]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 29789280; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='29789280']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-a9bf3a2bc8c89fa2a77156577594264ee8a0f214d74241bc0fcd3f69f8d107ac.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (false){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "-1" } } $('.js-work-strip[data-work-id=29789280]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":29789280,"title":"Reconstructions of surface ocean conditions from the northeast Atlantic and Nordic seas during the last millennium","internal_url":"https://www.academia.edu/29789280/Reconstructions_of_surface_ocean_conditions_from_the_northeast_Atlantic_and_Nordic_seas_during_the_last_millennium","owner_id":18041365,"coauthors_can_edit":true,"owner":{"id":18041365,"first_name":"Laura","middle_initials":null,"last_name":"Cunningham","page_name":"LauraCunningham1","domain_name":"independent","created_at":"2014-10-05T22:19:50.106-07:00","display_name":"Laura Cunningham","url":"https://independent.academia.edu/LauraCunningham1"},"attachments":[]}, dispatcherData: dispatcherData }); $(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="15238759"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/15238759/Shifts_in_precipitation_during_the_last_millennium_in_northern_Scandinavia_from_lacustrine_isotope_records"><img alt="Research paper thumbnail of Shifts in precipitation during the last millennium in northern Scandinavia from lacustrine isotope records" class="work-thumbnail" src="https://attachments.academia-assets.com/43408722/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/15238759/Shifts_in_precipitation_during_the_last_millennium_in_northern_Scandinavia_from_lacustrine_isotope_records">Shifts in precipitation during the last millennium in northern Scandinavia from lacustrine isotope records</a></div><div class="wp-workCard_item wp-workCard--coauthors"><span>by </span><span><a class="" data-click-track="profile-work-strip-authors" href="https://independent.academia.edu/ChristianBigler">Christian Bigler</a>, <a class="" data-click-track="profile-work-strip-authors" href="https://shmm.academia.edu/JonasBergman">Jonas Bergman</a>, <a class="" data-click-track="profile-work-strip-authors" href="https://independent.academia.edu/LauraCunningham1">Laura Cunningham</a>, <a class="" data-click-track="profile-work-strip-authors" href="https://independent.academia.edu/TGoslar">T. Goslar</a>, and <a class="" data-click-track="profile-work-strip-authors" href="https://independent.academia.edu/AnnikaBerntsson">Annika Berntsson</a></span></div><div class="wp-workCard_item"><span>Quaternary Science Reviews</span><span>, 2013</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Here we present d 18 O diatom data from two high-latitude lakes; one has short residence time and...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">Here we present d 18 O diatom data from two high-latitude lakes; one has short residence time and a water isotopic composition (d 18 O lake ) that fluctuate due to seasonal variations in precipitation and temperature, and the other has d 18 O lake that is influenced by longer lake water residence times and evaporation. The d 18 O diatom records reveal common responses to precipitation forcing over the past millennium. Relatively wet summers are inferred from d 18 O diatom between 1000 and 1080 AD, 1300 and 1440 AD, and during the early 19th century, coincided with periods of high cloud cover inferred from tree-ring carbon isotopes, and other data for high Arctic Oscillation index. While relatively dry summers with increasing influence of winter snow are indicated between 1600 and 1750 AD. The co-response between carbon isotopes in trees and oxygen isotopes in diatoms strengthens the relationship between cloud cover and precipitation and the hypothesis that these changes were the result of significant regional shifts in atmospheric circulation.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="9440fe66a7ca562797ab42511099a019" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":43408722,"asset_id":15238759,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/43408722/download_file?s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="15238759"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="15238759"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 15238759; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=15238759]").text(description); $(".js-view-count[data-work-id=15238759]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 15238759; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='15238759']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-a9bf3a2bc8c89fa2a77156577594264ee8a0f214d74241bc0fcd3f69f8d107ac.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (true){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "9440fe66a7ca562797ab42511099a019" } } $('.js-work-strip[data-work-id=15238759]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":15238759,"title":"Shifts in precipitation during the last millennium in northern Scandinavia from lacustrine isotope records","internal_url":"https://www.academia.edu/15238759/Shifts_in_precipitation_during_the_last_millennium_in_northern_Scandinavia_from_lacustrine_isotope_records","owner_id":34310257,"coauthors_can_edit":true,"owner":{"id":34310257,"first_name":"Christian","middle_initials":null,"last_name":"Bigler","page_name":"ChristianBigler","domain_name":"independent","created_at":"2015-08-27T23:00:36.425-07:00","display_name":"Christian Bigler","url":"https://independent.academia.edu/ChristianBigler"},"attachments":[{"id":43408722,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/43408722/thumbnails/1.jpg","file_name":"Shifts_in_precipitation_during_the_last_20160305-2229-r9quiu.pdf","download_url":"https://www.academia.edu/attachments/43408722/download_file","bulk_download_file_name":"Shifts_in_precipitation_during_the_last.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/43408722/Shifts_in_precipitation_during_the_last_20160305-2229-r9quiu-libre.pdf?1457239144=\u0026response-content-disposition=attachment%3B+filename%3DShifts_in_precipitation_during_the_last.pdf\u0026Expires=1740584104\u0026Signature=eNDaI7RYrOs2lPpmTRi8NThxnxb8qvBRW4e7J3X1PBIILTvuslVFWFN3CYvTF-dALc6V7Exu-iwDsqbey9HrY2kkk38l6pR3DZgKEolN5gTrzmWtEwann4EmK-96NadXIwkfouubrcPeo0m5-R~OX8CEEC-T6srxUm7TrBOUiLzq03jLLGRNEP21-C5drmgUToJGwYbznXx8EhrJqnQbYstaoyBATKN2G0DnoHapCLYAvb9yTjXHSpL7MyHJQDiUJMUtiQddgfE2ndhw3qURqIqvCPrib-X1dum~Ld5CaWdTIR7dw9DD8ZO4OHd85HzRnA-bQyszC10mn4GSCFIeog__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}]}, dispatcherData: dispatcherData }); $(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="29789279"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" rel="nofollow" href="https://www.academia.edu/29789279/The_influence_of_natural_environmental_factors_on_benthic_diatom_communities_from_the_Windmill_Islands_Antarctica"><img alt="Research paper thumbnail of The influence of natural environmental factors on benthic diatom communities from the Windmill Islands, Antarctica" class="work-thumbnail" src="https://a.academia-assets.com/images/blank-paper.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" rel="nofollow" href="https://www.academia.edu/29789279/The_influence_of_natural_environmental_factors_on_benthic_diatom_communities_from_the_Windmill_Islands_Antarctica">The influence of natural environmental factors on benthic diatom communities from the Windmill Islands, Antarctica</a></div><div class="wp-workCard_item"><span>Phycologia</span><span>, 2004</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">The species composition of benthic diatom communities responds rapidly to environmental change. A...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">The species composition of benthic diatom communities responds rapidly to environmental change. At four shallow benthic sites in the Windmill Islands, Casey, East Antarctica, redundancy analysis indicated that changes in sediment grain-size, light availability and water depth ...</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="29789279"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="29789279"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 29789279; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); 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</script> <div class="js-work-strip profile--work_container" data-work-id="20013582"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/20013582/Climatic_variability_during_the_last_interglacial_inferred_from_geochemical_proxies_in_the_Lake_Elgygytgyn_sediment_record"><img alt="Research paper thumbnail of Climatic variability during the last interglacial inferred from geochemical proxies in the Lake El'gygytgyn sediment record" class="work-thumbnail" src="https://attachments.academia-assets.com/41177027/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/20013582/Climatic_variability_during_the_last_interglacial_inferred_from_geochemical_proxies_in_the_Lake_Elgygytgyn_sediment_record">Climatic variability during the last interglacial inferred from geochemical proxies in the Lake El'gygytgyn sediment record</a></div><div class="wp-workCard_item wp-workCard--coauthors"><span>by </span><span><a class="" data-click-track="profile-work-strip-authors" href="https://independent.academia.edu/OlafJuschus">Olaf Juschus</a> and <a class="" data-click-track="profile-work-strip-authors" href="https://independent.academia.edu/LauraCunningham1">Laura Cunningham</a></span></div><div class="wp-workCard_item"><span>Palaeogeography, Palaeoclimatology, Palaeoecology</span><span>, 2013</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">The Last Interglacial Period (LIP) is often regarded as a good analogue for potential climatic co...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">The Last Interglacial Period (LIP) is often regarded as a good analogue for potential climatic conditions under predicted global warming scenarios. Despite this, there is still debate over the nature, duration and frequency of climatic changes during this period. One particularly contentious issue has been the apparent evidence of climatic instability identified in many marine cores but seemingly lacking from many terrestrial archives, especially within the Arctic, a key region for global climate change research. In this paper, geochemical records from Lake El'gygytgyn, north-eastern Russia, are used to infer past climatic changes during the LIP from within the high Arctic. With a sampling resolution of~20-~90 years, these records offer the potential for detailed, high-resolution palaeoclimate reconstruction. This study shows that the LIP commenced in central Chukotkã 129 thousand years ago (ka), with the warmest climatic conditions occurring between~128 and 127 ka before being interrupted by a short-lived cold reversal. Mild climatic conditions then persisted until~122 ka when a marked reduction in the sedimentation rate suggests a decrease in precipitation. A further climatic deterioration at~118 ka marks the return to glacial conditions. This study highlights the value of incorporating several geochemical proxies when inferring past climatic conditions, thus providing the potential to identify signals related to environmental change within the catchment. We also demonstrate the importance of considering how changes in sedimentation rate influence proxy records, in order to develop robust palaeoenvironmental reconstructions.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="c1ddc5f67ee49526713b1faabec422f9" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":41177027,"asset_id":20013582,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/41177027/download_file?s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="20013582"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="20013582"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 20013582; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=20013582]").text(description); $(".js-view-count[data-work-id=20013582]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 20013582; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='20013582']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-a9bf3a2bc8c89fa2a77156577594264ee8a0f214d74241bc0fcd3f69f8d107ac.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (true){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "c1ddc5f67ee49526713b1faabec422f9" } } $('.js-work-strip[data-work-id=20013582]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":20013582,"title":"Climatic variability during the last interglacial inferred from geochemical proxies in the Lake El'gygytgyn sediment record","internal_url":"https://www.academia.edu/20013582/Climatic_variability_during_the_last_interglacial_inferred_from_geochemical_proxies_in_the_Lake_Elgygytgyn_sediment_record","owner_id":40921523,"coauthors_can_edit":true,"owner":{"id":40921523,"first_name":"Olaf","middle_initials":null,"last_name":"Juschus","page_name":"OlafJuschus","domain_name":"independent","created_at":"2016-01-04T08:18:07.331-08:00","display_name":"Olaf Juschus","url":"https://independent.academia.edu/OlafJuschus"},"attachments":[{"id":41177027,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/41177027/thumbnails/1.jpg","file_name":"Climatic_variability_during_the_last_int20160115-6095-en9i3j.pdf","download_url":"https://www.academia.edu/attachments/41177027/download_file","bulk_download_file_name":"Climatic_variability_during_the_last_int.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/41177027/Climatic_variability_during_the_last_int20160115-6095-en9i3j-libre.pdf?1452846265=\u0026response-content-disposition=attachment%3B+filename%3DClimatic_variability_during_the_last_int.pdf\u0026Expires=1740575340\u0026Signature=RudNxPO2qCJcBS27E3Y6aAlqYtN4zGK13oypKM1lNAZ7-zlnMM7jP8pUXamH2~UiXZRwQzBPR8Ukk0mz~3TGQWgWmMw2I6UR2qOBDCwYWuBgwKqaLPuBzqNHUO1P9GDVBO4FyjG-z2MmwjieHcxGiJXjxzntbdpzwvLthXy5BKPcJxr~Gkj9R4NqiuT6lYtXbXm2mZoAcc3SyryI145Q9JCPrSjfvOMIKvIwSizuFE93g5gfVgiwgoBjkabdj~Oh2FjiGXZ6d9XTPwo6ea4GLAE5~~BgNfnV2fUUG1Pk4fSV5RBv8mQ-gcmwwSdOoOOgKzfj7qDDj98gwhFr06QfDA__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}]}, dispatcherData: dispatcherData }); $(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="29789278"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" rel="nofollow" href="https://www.academia.edu/29789278/Benthic_diatom_community_response_to_environmental_variables_and_metal_concentrations_in_a_contaminated_bay_adjacent_to_Casey_Station_Antarctica"><img alt="Research paper thumbnail of Benthic diatom community response to environmental variables and metal concentrations in a contaminated bay adjacent to Casey Station, Antarctica" class="work-thumbnail" src="https://a.academia-assets.com/images/blank-paper.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" rel="nofollow" href="https://www.academia.edu/29789278/Benthic_diatom_community_response_to_environmental_variables_and_metal_concentrations_in_a_contaminated_bay_adjacent_to_Casey_Station_Antarctica">Benthic diatom community response to environmental variables and metal concentrations in a contaminated bay adjacent to Casey Station, Antarctica</a></div><div class="wp-workCard_item"><span>Marine Pollution Bulletin</span><span>, 2005</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">This study examined the effects of anthropogenic contaminants and environmental variables on the ...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">This study examined the effects of anthropogenic contaminants and environmental variables on the composition of benthic diatom communities within a contaminated bay adjacent to an abandoned waste disposal site in Antarctica. The combination of geographical, environmental and chemical data included in the study explained all of the variation observed within the diatom communities. The chemical data, particularly metal concentrations, explained 45.9% of variation in the diatom communities, once the effects of grain-size and spatial structure had been excluded. Of the metals, tin explained the greatest proportion of variation in the diatom communities (28%). Tin was very highly correlated (R2&amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;gt;0.95) with several other variables (copper, iron, lead, and sum of metals), all of which explained similarly high proportions of total variation. Grain-size data explained 23% of variation once the effects of spatial structure and the chemical data had been excluded. The pure spatial component explained only 1.8% of the total variance. The study demonstrates that much of the compositional variability observed in the bay can be explained by concentrations of metal contaminants.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="29789278"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="29789278"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 29789278; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=29789278]").text(description); $(".js-view-count[data-work-id=29789278]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 29789278; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='29789278']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-a9bf3a2bc8c89fa2a77156577594264ee8a0f214d74241bc0fcd3f69f8d107ac.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (false){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); 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} }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="29789277"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/29789277/Applying_paleolimnological_techniques_in_estuaries_a_cautionary_case_study_from_Moreton_Bay_Australia"><img alt="Research paper thumbnail of Applying paleolimnological techniques in estuaries: a cautionary case study from Moreton Bay, Australia" class="work-thumbnail" src="https://attachments.academia-assets.com/50245422/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/29789277/Applying_paleolimnological_techniques_in_estuaries_a_cautionary_case_study_from_Moreton_Bay_Australia">Applying paleolimnological techniques in estuaries: a cautionary case study from Moreton Bay, Australia</a></div><div class="wp-workCard_item"><span>Marine and Freshwater Research</span><span>, 2010</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="a1e791753fe0dda8b993a43456df6d9d" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":50245422,"asset_id":29789277,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/50245422/download_file?s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="29789277"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="29789277"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 29789277; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=29789277]").text(description); $(".js-view-count[data-work-id=29789277]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 29789277; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='29789277']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-a9bf3a2bc8c89fa2a77156577594264ee8a0f214d74241bc0fcd3f69f8d107ac.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (true){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); 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$(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="29789276"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/29789276/Effects_of_climate_on_organic_carbon_and_the_ratio_of_planktonic_to_benthic_primary_producers_in_a_subarctic_lake_during_the_past_45_years"><img alt="Research paper thumbnail of Effects of climate on organic carbon and the ratio of planktonic to benthic primary producers in a subarctic lake during the past 45 years" class="work-thumbnail" src="https://attachments.academia-assets.com/50245419/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/29789276/Effects_of_climate_on_organic_carbon_and_the_ratio_of_planktonic_to_benthic_primary_producers_in_a_subarctic_lake_during_the_past_45_years">Effects of climate on organic carbon and the ratio of planktonic to benthic primary producers in a subarctic lake during the past 45 years</a></div><div class="wp-workCard_item"><span>Limnology and Oceanography</span><span>, 2009</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">The effects of climatic variables on lake-water total organic carbon (TOC) concentrations and ben...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">The effects of climatic variables on lake-water total organic carbon (TOC) concentrations and benthic and pelagic primary producers during the past 45 yr were assessed using the sediment records of two subarctic lakes, one with mires and one without mires connected to the lake. The lake with a mire showed large and synchronous changes in the planktonic to benthic (P : B) ratio of diatoms and concentrations of TOC inferred from nearinfrared spectroscopy. During periods of warm temperatures, high precipitation, and long ice-free conditions, we inferred high TOC in the lake, and the diatom community was dominated by planktonic species. The stable carbon isotopic (d 13 C) values of sediment organic matter were negatively correlated with inferred TOC concentration and P : B ratio. We suggest that the changes in TOC and P : B ratio were a result of changing climate, permafrost degradation, and related changes in the catchment. Terrestrial organic matter, by its strong effect on the penetration of light through the lake water, possibly affected the habitats available for benthic photosynthesis and thus the d 13 C of the sediment organic matter. The large changes in recent times may also be because of unusually long ice-free periods, warmer temperatures, and other associated limnological changes. The lake with no mire next to the lake showed only minor changes in lake-water TOC during the same period and P : B ratio remained almost constant until the past 5 yr, when the P : B ratio increased rapidly. The observed changes in P : B ratio within this lake may be because of complex interactions of several climate-related variables.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="31cd9e8a8325bea28c509a19822e35f3" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":50245419,"asset_id":29789276,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/50245419/download_file?s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="29789276"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="29789276"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 29789276; 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$(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="29789275"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/29789275/Effects_of_Metal_and_Petroleum_Hydrocarbon_Contamination_on_Benthic_Diatom_Communities_Near_Casey_Station_Antarctica_An_Experimental_APPROACH1"><img alt="Research paper thumbnail of Effects of Metal and Petroleum Hydrocarbon Contamination on Benthic Diatom Communities Near Casey Station, Antarctica: An Experimental APPROACH1" class="work-thumbnail" src="https://attachments.academia-assets.com/50245418/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/29789275/Effects_of_Metal_and_Petroleum_Hydrocarbon_Contamination_on_Benthic_Diatom_Communities_Near_Casey_Station_Antarctica_An_Experimental_APPROACH1">Effects of Metal and Petroleum Hydrocarbon Contamination on Benthic Diatom Communities Near Casey Station, Antarctica: An Experimental APPROACH1</a></div><div class="wp-workCard_item"><span>Journal of Phycology</span><span>, 2003</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">The effects of metals and petroleum hydrocarbons on benthic marine diatom communities were assess...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">The effects of metals and petroleum hydrocarbons on benthic marine diatom communities were assessed using a manipulative field experiment at Casey Station, Antarctica. Uncontaminated, metal contaminated, and petroleum hydrocarbon contaminated sediments were deployed for 11 weeks during the 1999 austral summer. The treatments were deployed at three different locations: Brown Bay, which has elevated levels of anthropogenic contaminants, and two uncontaminated reference locations, O'Brien Bay and Sparkes Bay, the latter of which has naturally occurring high concentrations of some heavy metals. At each location, significant differences between the composition of diatom communities recruiting to control and petroleum hydrocarbon contaminated treatments were observed. Navicula directa (Smith) Ralfs occurred at lower abundances in the petroleum hydrocarbon contaminated treatments than in the control treatments. In contrast, Navicula cancellata Donkin occurred at higher relative abundances in both contaminated treatments relative to the control treatment. Interactions between treatment and location were also observed for several species, including Navicula glaciei Van Heurck. Significant differences in the overall community composition of diatom communities between control and metal contaminated treatments and metal contaminated and petroleum hydrocarbon contaminated treatments were only observed within Brown Bay. The location of deployment also had a significant influence on the composition of diatom communities. Brown Bay had higher abundances of Achnanthes brevipes Agardh but lower abundances of Navicula aff. cincta (Ehrenberg) Van Heurck than either reference locations. This experiment demon-strated that benthic diatom communities are sensitive to sediment contamination and would be suitable for future monitoring work within this and other areas of Antarctica.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="ae921dd44d65e73783099819dda8e006" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":50245418,"asset_id":29789275,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/50245418/download_file?s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="29789275"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="29789275"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 29789275; 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$(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="29789274"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" rel="nofollow" href="https://www.academia.edu/29789274/Fourier_transform_infrared_spectroscopy_a_new_method_for_rapid_determination_of_total_organic_and_inorganic_carbon_and_biogenic_silica_concentration_in_lake_sediments"><img alt="Research paper thumbnail of Fourier transform infrared spectroscopy, a new method for rapid determination of total organic and inorganic carbon and biogenic silica concentration in lake sediments" class="work-thumbnail" src="https://a.academia-assets.com/images/blank-paper.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" rel="nofollow" href="https://www.academia.edu/29789274/Fourier_transform_infrared_spectroscopy_a_new_method_for_rapid_determination_of_total_organic_and_inorganic_carbon_and_biogenic_silica_concentration_in_lake_sediments">Fourier transform infrared spectroscopy, a new method for rapid determination of total organic and inorganic carbon and biogenic silica concentration in lake sediments</a></div><div class="wp-workCard_item wp-workCard--coauthors"><span>by </span><span><a class="" data-click-track="profile-work-strip-authors" href="https://independent.academia.edu/LauraCunningham1">Laura Cunningham</a> and <a class="" data-click-track="profile-work-strip-authors" href="https://lu.academia.edu/PerPersson">Per Persson</a></span></div><div class="wp-workCard_item"><span>Journal of Paleolimnology</span><span>, 2010</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">... carbon and biogenic silica concentration in lake sediments Peter Rosén Æ Hendrik Vogel Æ Laur...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">... carbon and biogenic silica concentration in lake sediments Peter Rosén Æ Hendrik Vogel Æ Laura Cunningham Æ Nina Reuss Æ Daniel J. Conley Æ Per Persson ... Furthermore, some lakes contain several hundred meters of sediment, including Lake Baikal (Peck et al. ...</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="29789274"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="29789274"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 29789274; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=29789274]").text(description); $(".js-view-count[data-work-id=29789274]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 29789274; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='29789274']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-a9bf3a2bc8c89fa2a77156577594264ee8a0f214d74241bc0fcd3f69f8d107ac.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (false){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "-1" } } $('.js-work-strip[data-work-id=29789274]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":29789274,"title":"Fourier transform infrared spectroscopy, a new method for rapid determination of total organic and inorganic carbon and biogenic silica concentration in lake sediments","internal_url":"https://www.academia.edu/29789274/Fourier_transform_infrared_spectroscopy_a_new_method_for_rapid_determination_of_total_organic_and_inorganic_carbon_and_biogenic_silica_concentration_in_lake_sediments","owner_id":18041365,"coauthors_can_edit":true,"owner":{"id":18041365,"first_name":"Laura","middle_initials":null,"last_name":"Cunningham","page_name":"LauraCunningham1","domain_name":"independent","created_at":"2014-10-05T22:19:50.106-07:00","display_name":"Laura Cunningham","url":"https://independent.academia.edu/LauraCunningham1"},"attachments":[]}, dispatcherData: dispatcherData }); $(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="29789273"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" rel="nofollow" href="https://www.academia.edu/29789273/Benthic_diatom_communities_as_indicators_of_anthropogenic_metal_contamination_at_Casey_Station_Antarctica"><img alt="Research paper thumbnail of Benthic diatom communities as indicators of anthropogenic metal contamination at Casey Station, Antarctica" class="work-thumbnail" src="https://a.academia-assets.com/images/blank-paper.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" rel="nofollow" href="https://www.academia.edu/29789273/Benthic_diatom_communities_as_indicators_of_anthropogenic_metal_contamination_at_Casey_Station_Antarctica">Benthic diatom communities as indicators of anthropogenic metal contamination at Casey Station, Antarctica</a></div><div class="wp-workCard_item"><span>Journal of Paleolimnology</span><span>, 2005</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Laura Cunningham, Ben Raymond, Ian Snape and Martin J. Riddle* Department of the Environment and ...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">Laura Cunningham, Ben Raymond, Ian Snape and Martin J. Riddle* Department of the Environment and Heritage, Australian Antarctic Division. Channel Highway, Kingston 7050, Australia; *Author for correspondence (e-mail: <a href="mailto:martin.riddle@aad.gov.au" rel="nofollow">martin.riddle@aad.gov.au</a>) ... Received 2 July 2003; ...</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="29789273"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="29789273"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 29789273; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=29789273]").text(description); $(".js-view-count[data-work-id=29789273]").attr('title', description).tooltip(); 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</script> <div class="js-work-strip profile--work_container" data-work-id="29789272"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/29789272/Universally_Applicable_Model_for_the_Quantitative_Determination_of_Lake_Sediment_Composition_Using_Fourier_Transform_Infrared_Spectroscopy"><img alt="Research paper thumbnail of Universally Applicable Model for the Quantitative Determination of Lake Sediment Composition Using Fourier Transform Infrared Spectroscopy" class="work-thumbnail" src="https://attachments.academia-assets.com/50245417/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/29789272/Universally_Applicable_Model_for_the_Quantitative_Determination_of_Lake_Sediment_Composition_Using_Fourier_Transform_Infrared_Spectroscopy">Universally Applicable Model for the Quantitative Determination of Lake Sediment Composition Using Fourier Transform Infrared Spectroscopy</a></div><div class="wp-workCard_item wp-workCard--coauthors"><span>by </span><span><a class="" data-click-track="profile-work-strip-authors" href="https://independent.academia.edu/LauraCunningham1">Laura Cunningham</a>, <a class="" data-click-track="profile-work-strip-authors" href="https://2ulaval.academia.edu/ReinhardPienitz">Reinhard Pienitz</a>, and <a class="" data-click-track="profile-work-strip-authors" href="https://lu.academia.edu/PerPersson">Per Persson</a></span></div><div class="wp-workCard_item"><span>Environmental Science & Technology</span><span>, 2011</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Multiproxy approaches are often required for comprehensive paleolimnological reconstructions as i...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">Multiproxy approaches are often required for comprehensive paleolimnological reconstructions as information from an individual proxy indicator can be supported by a suite of other indicators thus reducing potential errors or ambiguities. Analyzing a suite of indicators is both time-consuming and expensive, particularly when assessing long sediment records. 1 In high-resolution studies, the amount of sample material available from each horizon can also be a limiting factor. Conventional measurements of biogeochemical constituents (including biogenic silica (BSi)) are laborious, time-consuming, and imprecise, 2 thus alternative approaches are required. X-ray fluorescence scanners and multisensor core loggers can provide highly resolved, qualitative and semiquantitative information on the inorganic geochemistry, mineralogy, and magnetic properties. Fourier transform infrared spectroscopy (FTIRS) analysis also offers a promising alternative to conventional techniques due to the wealth of information on minerogenic and organic sediment constituents contained in FTIR spectra, the small sample size required, and the relative speed of analysis. 3À8 The basic principles of FTIRS are that infrared radiation can excite molecular vibrations and, as a consequence of the quantum mechanical behavior, the radiation will be absorbed at specific energies, depending on the composition of the material examined. As most compounds display characteristic infrared spectra, changes in the organic and inorganic composition of sediments can be determined, including changes in carbohydrate, fatty acid, humic material, silicate, and carbonate concentrations. 3À5 This information is of particular interest for paleolimnological studies since sediment is commonly composed of a mixture of various ABSTRACT: Fourier transform infrared spectroscopy (FTIRS) can provide detailed information on organic and minerogenic constituents of sediment records. Based on a large number of sediment samples of varying age (0À340 000 yrs) and from very diverse lake settings in and Sweden, we have developed universally applicable calibration models for the quantitative determination of biogenic silica (BSi; n = 816), total inorganic carbon (TIC; n = 879), and total organic carbon (TOC; n = 3164) using FTIRS. These models are based on the differential absorbance of infrared radiation at specific wavelengths with varying concentrations of individual parameters, due to molecular vibrations associated with each parameter. The calibration models have low prediction errors and the predicted values are highly correlated with conventionally measured values (R = 0.94À0.99). Robustness tests indicate the accuracy of the newly developed FTIRS calibration models is similar to that of conventional geochemical analyses. Consequently FTIRS offers a useful and rapid alternative to conventional analyses for the quantitative determination of BSi, TIC, and TOC. The rapidity, cost-effectiveness, and small sample size required enables FTIRS determination of geochemical properties to be undertaken at higher resolutions than would otherwise be possible with the same resource allocation, thus providing crucial sedimentological information for climatic and environmental reconstructions.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="b0dd3bea5ab74b18a80b3568a6b69e92" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":50245417,"asset_id":29789272,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/50245417/download_file?s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="29789272"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="29789272"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 29789272; 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$(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="29789271"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/29789271/Amplified_bioproductivity_during_Transition_IV_332_000_and_ndash_342_000_yr_ago_evidence_from_the_geochemical_record_of_Lake_Elgygytgyn"><img alt="Research paper thumbnail of Amplified bioproductivity during Transition IV (332 000&ndash;342 000 yr ago): evidence from the geochemical record of Lake El'gygytgyn" class="work-thumbnail" src="https://attachments.academia-assets.com/50245415/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/29789271/Amplified_bioproductivity_during_Transition_IV_332_000_and_ndash_342_000_yr_ago_evidence_from_the_geochemical_record_of_Lake_Elgygytgyn">Amplified bioproductivity during Transition IV (332 000&ndash;342 000 yr ago): evidence from the geochemical record of Lake El'gygytgyn</a></div><div class="wp-workCard_item"><span>Climate of the Past</span><span>, 2013</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">To date, terrestrial archives of long-term climatic change within the arctic region have widely b...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">To date, terrestrial archives of long-term climatic change within the arctic region have widely been restricted to ice cores from Greenland and, more recently, sediments from Lake El'gygytgyn in Northeast Arctic Russia. Sediments from this lake contain a paleoclimate record of glacial-interglacial cycles during the last three million years. Low 5 10 genic silica production. Following this sharp increase, bioproductivity remained high, but variable, for over a thousand years. This study reveals differences in the timing and magnitude of change within the ratio of silica to titanium (Si/Ti) and biogenic silica (BSi) records that would not be apparent in lower resolution studies. This has significant implications for the increasingly common use of Si/Ti data as an alternative to traditional 15 BSi measurements.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="b2bf3bfdc933972e046e4196f9d24277" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":50245415,"asset_id":29789271,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/50245415/download_file?s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="29789271"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="29789271"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 29789271; 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$(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="29789270"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/29789270/A_millennial_long_March_July_precipitation_reconstruction_for_southern_central_England"><img alt="Research paper thumbnail of A millennial long March–July precipitation reconstruction for southern-central England" class="work-thumbnail" src="https://attachments.academia-assets.com/50245420/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/29789270/A_millennial_long_March_July_precipitation_reconstruction_for_southern_central_England">A millennial long March–July precipitation reconstruction for southern-central England</a></div><div class="wp-workCard_item"><span>Climate Dynamics</span><span>, 2013</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">We present a millennial long dendroclimatic reconstruction of spring/summer precipitation for sou...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">We present a millennial long dendroclimatic reconstruction of spring/summer precipitation for southerncentral England. Previous research identified a significant moisture stress signal in ring-width data measured from oak trees growing in southern England. In this study, we build upon this earlier work, specifically targeting south-central England, to derive a well replicated oak ring-width composite chronology using both living and historical material. The data-set includes 352 living trees (AD 1629-2009) and 1540 individual historical series (AD 663-1925). The period expressed by at least 50 trees in any year is AD 980-2009. Calibration experiments identify the optimal seasonal predictand target as March-July precipitation (1901-2007: r 2 = 0.33). However, comparison with the long Kew Gardens precipitation record indicates a weakening in treegrowth/climate response from *1800 to 1920 which we speculate may be related to smoke and sulphur dioxide (SO 2 ) emissions at that time which may have also contributed to a decrease in tree productivity. The time-series derived using the regional curve standardisation method to capture lower frequency information shows a mediaeval period with alternating multi-decade-long dry and wet periods, with AD 1153-1172 being the wettest reconstructed 20-year period in the whole record. Drier conditions are prevalent from *1300 to the early sixteenth century followed by a period of increasing precipitation levels. The most recent four centuries of the record appear similar to the mediaeval period with multiple decade-long dry and wet periods. The late twentieth century is the second reconstructed wettest period. These centennial hydroclimatic trends are in broad agreement with independent regional scale hydroclimatic reconstructions from tree-ring (East Anglia), historical, speleothem and peat water level proxy archives in the United Kingdom and appear coupled with reconstructed sea surface temperature changes in the North Atlantic which in turn influence the Atlantic meridional overturning circulation and westerly airflow across the UK.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="fd984d8e1b56fbe71d74cb3b4420a1f6" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":50245420,"asset_id":29789270,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/50245420/download_file?s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="29789270"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="29789270"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 29789270; 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$(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="29789269"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" rel="nofollow" href="https://www.academia.edu/29789269/The_soggy_road_to_a_climatically_sensitive_8000_year_Scottish_pine_chronology"><img alt="Research paper thumbnail of The soggy road to a climatically sensitive 8000-year Scottish pine chronology" class="work-thumbnail" src="https://a.academia-assets.com/images/blank-paper.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" rel="nofollow" href="https://www.academia.edu/29789269/The_soggy_road_to_a_climatically_sensitive_8000_year_Scottish_pine_chronology">The soggy road to a climatically sensitive 8000-year Scottish pine chronology</a></div><div class="wp-workCard_item wp-workCard--coauthors"><span>by </span><span><a class="" data-click-track="profile-work-strip-authors" href="https://independent.academia.edu/LauraCunningham1">Laura Cunningham</a> and <a class="" data-click-track="profile-work-strip-authors" href="https://independent.academia.edu/annecrone">Anne Crone</a></span></div><div class="wp-workCard_item"><span>… 2010, held 2-7 May …</span><span>, 2010</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Title: The soggy road to a climatically sensitive 8000-year Scottish pine chronology. Authors: Wi...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">Title: The soggy road to a climatically sensitive 8000-year Scottish pine chronology. Authors: Wilson, Rob; Loader, Neil; Mills, Coralie; Crone, Anne; Edwards, Colin; Cunningham, Laura; Frith, Alex; Rydval, Milos. Affiliation: AA(St. ... Roslin, Edinburgh), AF(St. ...</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="29789269"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="29789269"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 29789269; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=29789269]").text(description); $(".js-view-count[data-work-id=29789269]").attr('title', description).tooltip(); 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The composite reconstructions are based on SST records from across the region, derived from a mixture of marine based proxies (diatoms, alkenones, oxygen isotopes and Mg/Ca ratios from planktonic and benthic foraminifera and shell increment widths of Arctica islandica). The records used within this study include 5 records from north of Iceland, 3 from Norway, one from Scotland, and one from the Rockall Trough (NW of Ireland). Data from all ten sites is available back to 1430, with data from 9 sites available back to 1255 AD. Although seven records extend back the full millennium this does not include any records from Norway, consequently the composite records presented here do not extend back this far. Several different approaches have been tested, such as using all the available data, or only incorporating screen...</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="14233288"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="14233288"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 14233288; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=14233288]").text(description); 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</script> <div class="js-work-strip profile--work_container" data-work-id="29789268"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" rel="nofollow" href="https://www.academia.edu/29789268/An_Eocene_moncotyledon_from_Nelly_Creek_Central_Australia_with_affinities_to_Hemerocallidaceae_Lilianae_Asparagales_"><img alt="Research paper thumbnail of An Eocene moncotyledon from Nelly Creek, Central Australia, with affinities to Hemerocallidaceae (Lilianae: Asparagales)" class="work-thumbnail" src="https://a.academia-assets.com/images/blank-paper.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" rel="nofollow" href="https://www.academia.edu/29789268/An_Eocene_moncotyledon_from_Nelly_Creek_Central_Australia_with_affinities_to_Hemerocallidaceae_Lilianae_Asparagales_">An Eocene moncotyledon from Nelly Creek, Central Australia, with affinities to Hemerocallidaceae (Lilianae: Asparagales)</a></div><div class="wp-workCard_item"><span>Alcheringa: An Australasian Journal of Palaeontology</span><span>, 2003</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">A monocotyledonous partial leaf macrofossil from Eocene beds at Nelly Creek near Lake Eyre in Cen...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">A monocotyledonous partial leaf macrofossil from Eocene beds at Nelly Creek near Lake Eyre in Central Australia is described. It is recognised as being close to several extant Australasian species of Dianella Lam. ex Juss.(Hemerocallidaceae), especially the D. odorata Blume/D. bambusifolia Hallier f. complex. However, because it has unique cuticular features relative to extant Hemerocallidaceae, the fossil is assigned to the new genus and species Dianellophyllum eocenicum Conran, Christophel &amp;amp;amp;amp; Cunningham.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="29789268"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="29789268"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 29789268; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); 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</script> <div class="js-work-strip profile--work_container" data-work-id="3583070"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" rel="nofollow" href="https://www.academia.edu/3583070/Reconstructing_temperatures_from_lake_sediments_in_northern_Europe_what_do_the_biological_proxies_really_tell_us"><img alt="Research paper thumbnail of Reconstructing temperatures from lake sediments in northern Europe: what do the biological proxies really tell us" class="work-thumbnail" src="https://a.academia-assets.com/images/blank-paper.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" rel="nofollow" href="https://www.academia.edu/3583070/Reconstructing_temperatures_from_lake_sediments_in_northern_Europe_what_do_the_biological_proxies_really_tell_us">Reconstructing temperatures from lake sediments in northern Europe: what do the biological proxies really tell us</a></div><div class="wp-workCard_item wp-workCard--coauthors"><span>by </span><span><a class="" data-click-track="profile-work-strip-authors" href="https://shmm.academia.edu/JonasBergman">Jonas Bergman</a> and <a class="" data-click-track="profile-work-strip-authors" href="https://independent.academia.edu/LauraCunningham1">Laura Cunningham</a></span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Over the past two decades considerable effort has been devoted to quantitatively reconstructing t...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">Over the past two decades considerable effort has been devoted to quantitatively reconstructing temperatures from biological proxies preserved in lake sediments, via transfer functions. Such transfer functions typically consist of modern sediment samples, collected over a broad environmental gradient. Correlations between the biological communities and environmental parameters observed over these broad gradients are assumed to be equally valid temporally. The predictive ability of such spatially based transfer functions has traditionally been assessed by comparisons of measured and inferred temperatures within the calibration sets, with little validation against historical data. Although statistical techniques such as bootstrapping may improve error estimation, this approach remains partly a circular argument. This raises the question of how reliable such reconstructions are for inferring past changes in temperature? In order to address this question, we used transfer functions to reconstruct July temperatures from diatoms and chironomids from several locations across northern Europe. The transfer functions used showed good internal calibration statistics (r2 = 0.66 - 0.91). The diatom and chironomid inferred July air temperatures were compared to local observational records. As the sediment records were non-annual, all data were first smoothed using a 15 yr moving average filter. None of the five biologically-inferred temperature records were correlated with the local meteorological records. Furthermore, diatom inferred temperatures did not agree with chironomid inferred temperatures from the same cores from the same sites. In an attempt to understand this poor performance the biological proxy data was compressed using principal component analysis (PCA), and the PCA axes compared to the local meteorological data. These analyses clearly demonstrated that July temperatures were not correlated with the biological data at these locations. Some correlations were observed between the biological proxies and autumn and spring temperatures, although this varied slightly between sites and proxies. For example, chironomid data from Iceland was most strongly correlated with temperatures in February, March and April whilst in northern Sweden, the chironomid data was most strongly correlated with temperatures in March, April and May. It is suggested that the biological data at these sites may be responding to changes in the length of the ice-free period or hydrological regimes (including snow melt), rather than temperature per se. Our findings demonstrate the need to validate inferred temperatures against local meteorological data. 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Th...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">This is an author produced version of a paper published in European Journal of Paleolimnology. 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