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GOES-R satellite could provide better data for hurricane prediction -- ScienceDaily

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The wealth of information from this new satellite, at time and space scales not previously possible, combined with advanced statistical hurricane prediction models, could enable more accurate predictions in the future." id="metasummary"/> <meta name="keywords" content="Satellites; Cosmic Rays; Astrophysics; Sun; Severe Weather; Hurricanes and Cyclones; Weather; Floods" id="metakeywords"/> <meta name="last-modified" content="Sun, 31 Mar 2019 05:54:36 GMT"/> <meta name="expires" content="Sun, 31 Mar 2019 06:54:36 GMT"/> <meta property="og:title" id="og_title" content="GOES-R satellite could provide better data for hurricane prediction"/> <meta property="og:type" content="article"/> <meta property="og:url" id="og_url" content="https://web.archive.org/web/20190407100244/https://www.sciencedaily.com/releases/2016/03/160324192435.htm"/> <meta property="og:image" id="og_image" content="/web/20190407100244im_/https://www.sciencedaily.com/images/2016/03/160324192435_1_540x360.jpg"/> <meta property="og:description" id="og_description" content="The launch of the GOES-R geostationary satellite in Oct. 2016 could herald a new era for predicting hurricanes, according to researchers. 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<h1 id="headline" class="headline">GOES-R satellite could provide better data for hurricane prediction</h1> <dl class="dl-horizontal dl-custom"> <dt>Date:</dt> <dd id="date_posted">March 24, 2016</dd> <dt>Source:</dt> <dd id="source">Penn State</dd> <dt>Summary:</dt> <dd id="abstract">The launch of the GOES-R geostationary satellite in Oct. 2016 could herald a new era for predicting hurricanes, according to researchers. The wealth of information from this new satellite, at time and space scales not previously possible, combined with advanced statistical hurricane prediction models, could enable more accurate predictions in the future. </dd> <dt class="no-print">Share:</dt> <dd class="no-print"> <div id="share_top"> <div data-url="https://web.archive.org/web/20190407100244oe_/https://www.sciencedaily.com/releases/2016/03/160324192435.htm" class="ssk-sm ssk-group"> <a class="ssk ssk-icon ssk-facebook"></a> <a class="ssk ssk-icon ssk-twitter"></a> <a class="ssk ssk-icon ssk-google-plus"></a> <a class="ssk ssk-icon ssk-pinterest"></a> <a class="ssk ssk-icon ssk-linkedin"></a> <a class="ssk ssk-icon ssk-email"></a> </div> </div> </dd> </dl> <div class="row"> <div class="col-md-8 col-md-push-4"> <div class="fullstory">FULL STORY</div> <hr class="hr-fullstory"/> <div id="story_photo" class="hyphenate"> <div class="photo-image"><img class="img-responsive center-block" src="/web/20190407100244im_/https://www.sciencedaily.com/images/2016/03/160324192435_1_540x360.jpg" width="" height="" title="Click to enlarge" alt="" data-toggle="modal" data-target="#myModal"/></div> <div class="photo-caption">Penn State researchers found a better way to use satellite data in hurricane prediction models, which could revolutionize future hurricane predictions. Pictured is satellite imagery of Hurricane Karl, which was the focus of the researchers' proof-of-concept study.</div> <div class="photo-credit"><em>Credit: NOAA</em></div> <div class="clearfix"></div> <!-- Modal --> <div class="modal fade" id="myModal" tabindex="-1" role="dialog" aria-labelledby="myModalLabel" aria-hidden="true"> <div class="modal-dialog"> <div class="modal-content modal-content-custom"> <div class="modal-image"><img class="img-responsive center-block" src="/web/20190407100244im_/https://www.sciencedaily.com/images/2016/03/160324192435_1_900x600.jpg" width="730" height="411"/></div> <div class="modal-text"> <div class="modal-caption">Penn State researchers found a better way to use satellite data in hurricane prediction models, which could revolutionize future hurricane predictions. Pictured is satellite imagery of Hurricane Karl, which was the focus of the researchers' proof-of-concept study.</div> <div class="modal-credit"><em>Credit: NOAA</em></div> <div class="modal-close"><button type="button" class="btn btn-default" data-dismiss="modal">Close</button></div> <div class="clearfix"></div> </div> </div> </div> </div> </div> <!-- /story_photo --> <div class="clearfix"></div> <div id="story_text" class="hyphenate"> <p id="first" class="lead">The launch of the GOES-R geostationary satellite in October 2016 could herald a new era for predicting hurricanes, according to Penn State researchers. The wealth of information from this new satellite, at time and space scales not previously possible, combined with advanced statistical hurricane prediction models, could enable more accurate predictions in the future.</p> <div class="mobile-top-rectangle hidden-md hidden-lg"> <div class="textrule"> <span>advertisement</span> </div> <!-- /1002721/ScienceDaily_Mobile_Top_Rectangle --> <div id="adslot-mobile-top-rectangle"> <script type="text/javascript"> googletag.cmd.push(function() { deployads.push(function() { deployads.gpt.display("adslot-mobile-top-rectangle") }); }); </script> </div> <hr class="hrrule"/> </div> <div id="text"> <p>"For decades, geostationary satellites such as the GOES series have been the primary tool to monitor severe weather like storms and hurricanes in real time," said Fuqing Zhang, professor of meteorology and director of Penn State's Center for Advanced Data Assimilation and Predictability Techniques. "They have helped people see what's going on in the present, but, until now, we as a community have not been able to tap into these resources to guide us to predict future severe weather."</p> <p>Geostationary satellites like the GOES series orbit the Earth at a fixed location, taking snapshots of cloud formations and other meteorological information. The National Oceanic and Atmospheric Administration operates GOES with contributions from NASA.</p> <p>Historically, two main challenges exist when using satellite data for hurricane predictions -- the type and amount of data collected. Satellites do not directly measure many quantities related to a hurricane's intensity, such as surface pressure, wind speeds, temperature and water vapor beneath the cloudy regions of the hurricane eyewall. They do, however, collect data known as brightness temperature, which show how much radiation is emitted by objects on Earth and in the atmosphere at different infrared frequencies. Because all objects naturally emit and absorb different amounts of radiation at different frequencies, the complexity of data poses challenges to researchers hoping to use these data for hurricane prediction models.</p> <p>"At some frequencies water vapor absorbs moderate amounts of radiation passing through it, at other frequencies it absorbs most of that radiation and at other frequencies it absorbs hardly any at all. Unlike water vapor, clouds strongly absorb radiation at all of these frequencies," said Eugene Clothiaux, professor of meteorology. "Comparing measurements at different frequencies leads to information about water vapor and clouds at different altitudes above the Earth. This begins to tell us about the physical structure of water vapor fields and clouds, including those in the area around a hurricane."</p> <p>Using brightness temperature satellite data to improve model forecasts of hurricanes is not straightforward. Brightness temperature information is a complex mixture related to the ground, atmospheric water vapor and clouds. The team had to develop a sophisticated analysis and modeling scheme to extract information in useful ways for model forecasts.</p> <p>Zhang, Masashi Minamide, graduate student in meteorology, and Clothiaux demonstrated in a pilot study that it is becoming feasible to use brightness data. They found definitive correlations between measurements of brightness temperature and information about the storm -- wind speed and sea level pressure underneath the hurricane. They report their results in the current issue of <em>Geophysical Research Letters</em>.</p> <p>Using data from GOES-13, the team completed a proof-of-concept experiment, analyzing data from Hurricane Karl in 2010. They used the Penn State real-time hurricane analysis and prediction system that Zhang and his team have been developing and refining for nearly a decade.</p> <p>"Hurricane prediction models work by chunking individual blocks of the hurricane and this starts from the initial information that is fed into the model," said Zhang. "We then run an ensemble of possible outcomes for the hurricane using different variables to estimate uncertainty and this tells us how the hurricane might behave. If we are able to use a higher resolution for the initial state, this could allow us to vastly improve hurricane predictions in the future."</p> <p>GOES-13 provides data at a resolution of 2.5 miles, and GOES-R will increase that to under 0.6 miles for some frequencies of brightness temperature. The increase in resolution is especially important because of the size of hurricanes. The eyewall, the layer of clouds surrounding the eye, varies in size but is roughly 6 miles thick. Using GOES-13 brightness temperatures with 2.5-mile resolution, the eyewall is often grouped together with other parts of the storm, with only one or two brightness temperature measurements from only the eyewall itself. A 0.6 mile resolution brightness temperature measurement would allow for up to 10 eyewall measurements to be fed into prediction models as separate chunks of information instead of grouped together with other parts of the storm.</p> <p>This new data source could have implications on the longstanding challenge of predicting hurricane intensity, Zhang said. Researchers know that wind speed and other levels of activity near the eye of the hurricane are linked to future intensity, but actually collecting these data is difficult. Today, NOAA uses airborne reconnaissance to collect data, but this is only possible when the storm is within flying distance. Satellites that constantly monitor the oceans at high spatial and temporal resolution and with many frequencies of brightness temperature, like GOES-R, could remove that constraint.</p> <p>"Geostationary satellites are there all the time, which makes them ideal for capturing the initial and evolving states of hurricanes, including the crucial information in the cloudy region of the storm," said Zhang. "Using satellite data more effectively could potentially revolutionize hurricane monitoring and prediction for many years."</p> </div> <div class="mobile-middle-rectangle hidden-md hidden-lg"> <div class="textrule"> <span>advertisement</span> </div> <!-- /1002721/ScienceDaily_Mobile_Middle_Rectangle --> <div id="adslot-mobile-middle-rectangle"> <script type="text/javascript"> googletag.cmd.push(function() { deployads.push(function() { deployads.gpt.display("adslot-mobile-middle-rectangle") }); }); </script> </div> <hr class="hrrule"/> </div> <hr class="hidden-sm hidden-xs"/> <div id="story_source"> <p><strong>Story Source:</strong></p> <p><a href="https://web.archive.org/web/20190407100244/http://news.psu.edu/story/399668/2016/03/24/research/goes-r-satellite-could-provide-better-data-hurricane-prediction" rel="nofollow" target="_blank">Materials</a> provided by <a href="https://web.archive.org/web/20190407100244/http://www.psu.edu/" rel="nofollow" target="_blank"><strong>Penn State</strong></a>. Original written by Liam Jackson. <em>Note: Content may be edited for style and length.</em></p> </div> <!-- /story_source --> <hr/> <!-- /journal_references --> <div id="citations"> <div role="tabpanel" class="right-tabs clearfix"> <p class="pull-left"><strong>Cite This Page</strong>:</p> <!-- Nav tabs --> <ul class="nav nav-tabs" role="tablist"> <li role="presentation" class="active"><a href="#citation_mla" aria-controls="citation_mla" role="tab" data-toggle="tab">MLA</a></li> <li role="presentation"><a href="#citation_apa" aria-controls="citation_apa" role="tab" data-toggle="tab">APA</a></li> <li role="presentation"><a href="#citation_chicago" aria-controls="citation_chicago" role="tab" data-toggle="tab">Chicago</a></li> </ul> <!-- Tab panes --><div class="tab-content tab-citations"> <div role="tabpanel" class="tab-pane active" id="citation_mla">Penn State. "GOES-R satellite could provide better data for hurricane prediction." ScienceDaily. ScienceDaily, 24 March 2016. &lt;www.sciencedaily.com/releases/2016/03/160324192435.htm&gt;.</div> <div role="tabpanel" class="tab-pane" id="citation_apa">Penn State. (2016, March 24). GOES-R satellite could provide better data for hurricane prediction. <em>ScienceDaily</em>. Retrieved March 31, 2019 from www.sciencedaily.com/releases/2016/03/160324192435.htm</div> <div role="tabpanel" class="tab-pane" id="citation_chicago">Penn State. "GOES-R satellite could provide better data for hurricane prediction." 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