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col-sm-push-3"> <a id="main-content"></a> <h1 class="page__title title mt-4" id="page-title">Flux Tower Monitoring</h1> <div class="node-93 node node-uaqs-flexible-page view-mode-full clearfix" about="/research-infastructure/flux-tower-monitoring" typeof="sioc:Item foaf:Document"> <header> <span property="dc:title" content="Flux Tower Monitoring" class="rdf-meta element-hidden"></span> </header> <div class="entity entity-paragraphs-item paragraphs-item-uaqs-headed-text mb-4 "> <p>Flux Towers are micrometeorological tower sites that use聽<a href="https://en.wikipedia.org/wiki/Eddy_covariance" title="Eddy covariance">eddy covariance</a>聽methods to measure the exchanges of聽<a href="https://en.wikipedia.org/wiki/Carbon_dioxide" title="Carbon dioxide">carbon dioxide</a>,聽<a href="https://en.wikipedia.org/wiki/Water_vapor" title="Water vapor">water vapor</a>, and energy between the聽<a href="https://en.wikipedia.org/wiki/Biosphere" title="Biosphere">biosphere</a>聽and聽<a href="https://en.wikipedia.org/wiki/Atmosphere" title="Atmosphere">atmosphere</a>. Each flux tower has multiple measurement levels outfitted with suites of sensors. The number of measurement levels on a tower vary from four to eight levels depending on the ecosystem structure at each site. Each boom arm is 4 m long, which is double the width of the tower to minimize the impact of flow distortion caused by the tower on wind measurements.聽Towers extend past the top of the vegetation canopy at each site to allow sensors mounted at the top and along the tower to capture the full profile of atmospheric conditions from the top of the vegetation canopy to the ground. Automated tower sensors collect data continuously to capture patterns and cycles across various time periods, ranging from seconds to years. (from:聽<a href="https://www.neonscience.org/">https://www.neonscience.org/</a>)</p> <p>AES Flux Towers participate in several aggregate networks, including FLUXNET and NEON.</p> <p>聽</p></div> <div class="entity entity-paragraphs-item paragraphs-item-uaqs-card-deck mb-4 uaqs_borderless_card"> <div class="content"> <div class="card-deck-wrapper"><div class="card-deck card-deck-borderless"> <div class="card card-borderless"> <img typeof="foaf:Image" src="https://experimentstation.arizona.edu/sites/experimentstation.arizona.edu/files/styles/uaqs_card_image/public/RScott_US-SRM-SantaRitaMesquite.jpg?itok=qic1LUui" width="568" height="426" alt="" /></div> <div class="card card-borderless"> <img typeof="foaf:Image" src="https://experimentstation.arizona.edu/sites/experimentstation.arizona.edu/files/styles/uaqs_card_image/public/US-xSR-photo-gallery-300x200.jpg?itok=ZMkFQH4H" width="568" height="426" alt="" /></div> <div class="card card-borderless"> <img typeof="foaf:Image" 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