{"id":10050,"date":"2022-02-16T11:33:11","date_gmt":"2022-02-16T10:33:11","guid":{"rendered":"https:\/\/www.swissfluxnet.ethz.ch\/?page_id=10050"},"modified":"2025-01-05T12:57:54","modified_gmt":"2025-01-05T11:57:54","slug":"most-important-variables","status":"publish","type":"page","link":"https:\/\/swissfluxnet.ethz.ch\/index.php\/data\/variables\/most-important-variables\/","title":{"rendered":"Most Important Variables"},"content":{"rendered":"<p class=\"notice\">Lists will be complemented as needed.<\/p>\n<p>The following gives a list of variables that are widely used in ecosystem research and should be included in shared datasets (if available).<\/p>\n<p>&nbsp;<\/p>\n<h2>Flux Variables<\/h2>\n<ul>\n<li><strong>NEE<\/strong> (\u00b5mol CO<sub>2<\/sub> m<sup>-2<\/sup> s<sup>-1<\/sup>): Net ecosystem exchange of CO<sub>2<\/sub><\/li>\n<li><strong>GPP<\/strong> (\u00b5mol CO<sub>2<\/sub> m<sup>-2<\/sup> s<sup>-1<\/sup>): Gross primary production<\/li>\n<li><strong>RECO<\/strong> (\u00b5mol CO<sub>2<\/sub> m<sup>-2<\/sup> s<sup>-1<\/sup>): Ecosystem respiration<\/li>\n<li><strong>LE<\/strong> (W m<sup>-2<\/sup>): Latent heat flux<\/li>\n<li><strong>H<\/strong> (W m<sup>-2<\/sup>): Sensible heat flux<\/li>\n<li><strong>Quality flags<\/strong> for NEE, GPP, RECO, LE and H, to differentiate between directly measured and gap-filled fluxes<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h2>Meteorological Variables<\/h2>\n<ul>\n<li><strong>TA<\/strong> (\u00b0C): Air temperature<\/li>\n<li><strong>SW_IN<\/strong> (W m-2): Incoming shortwave radiation<\/li>\n<li><strong>LW_IN<\/strong> (W m-2): Incoming (down-welling) longwave radiation<\/li>\n<li><b>LW_OUT <\/b>(W m-2): Outgoing longwave radiation<\/li>\n<li><b>SW_OUT <\/b>(W m-2): Outgoing shortwave radiation<\/li>\n<li><strong>PPFD<\/strong> (umol m-2 s-1): Incoming photosynthetic photon flux density<\/li>\n<li><strong>RH<\/strong> (%): Relative humidity<\/li>\n<li><strong>PA<\/strong> (kPa): Atmospheric pressure<\/li>\n<li><strong>PREC<\/strong> (mm): Precipitation total<\/li>\n<li><strong>SWC<\/strong> (%): Soil water content (volumetric)<\/li>\n<li><strong>TS<\/strong> (\u00b0C): Soil temperature<\/li>\n<li><strong>G<\/strong> (W m-2): Ground heat flux, needed for the energy balance closure calculations<\/li>\n<li><strong>NETRAD<\/strong> (W m-2): Net radiation, needed for the energy balance closure calculations<\/li>\n<li><strong>VPD<\/strong> (hPa): Vapor pressure deficit<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h2>Related<\/h2>\n<ul>\n<li><a href=\"https:\/\/www.swissfluxnet.ethz.ch\/index.php\/data\/variables\/variable-abbreviations\/\">Variable Abbreviations<\/a><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The following gives a list of variables that are widely used in ecosystem research and should be included in shared datasets (if available). &nbsp; Flux Variables NEE (\u00b5mol CO2 m-2 s-1): Net ecosystem exchange of CO2 GPP (\u00b5mol CO2 m-2 s-1): Gross primary production RECO (\u00b5mol CO2 m-2 s-1): Ecosystem . . . <a class=\"readmore-link\" href=\"https:\/\/swissfluxnet.ethz.ch\/index.php\/data\/variables\/most-important-variables\/\">Read more<\/a><\/p>\n","protected":false},"author":3,"featured_media":0,"parent":9867,"menu_order":2,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"_lmt_disableupdate":"no","_lmt_disable":"no","ngg_post_thumbnail":0,"footnotes":""},"coauthors":[314],"class_list":["post-10050","page","type-page","status-publish","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/swissfluxnet.ethz.ch\/index.php\/wp-json\/wp\/v2\/pages\/10050","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/swissfluxnet.ethz.ch\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/swissfluxnet.ethz.ch\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/swissfluxnet.ethz.ch\/index.php\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/swissfluxnet.ethz.ch\/index.php\/wp-json\/wp\/v2\/comments?post=10050"}],"version-history":[{"count":8,"href":"https:\/\/swissfluxnet.ethz.ch\/index.php\/wp-json\/wp\/v2\/pages\/10050\/revisions"}],"predecessor-version":[{"id":12825,"href":"https:\/\/swissfluxnet.ethz.ch\/index.php\/wp-json\/wp\/v2\/pages\/10050\/revisions\/12825"}],"up":[{"embeddable":true,"href":"https:\/\/swissfluxnet.ethz.ch\/index.php\/wp-json\/wp\/v2\/pages\/9867"}],"wp:attachment":[{"href":"https:\/\/swissfluxnet.ethz.ch\/index.php\/wp-json\/wp\/v2\/media?parent=10050"}],"wp:term":[{"taxonomy":"author","embeddable":true,"href":"https:\/\/swissfluxnet.ethz.ch\/index.php\/wp-json\/wp\/v2\/coauthors?post=10050"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}