{"id":8361,"date":"2011-04-06T03:00:38","date_gmt":"2011-04-06T08:00:38","guid":{"rendered":"http:\/\/blogs.scienceforums.net\/swansont\/?p=8361"},"modified":"2011-04-06T03:00:38","modified_gmt":"2011-04-06T08:00:38","slug":"how-green-is-my-valley","status":"publish","type":"post","link":"http:\/\/blogs.scienceforums.net\/swansont\/archives\/8361","title":{"rendered":"How Green is My Valley?"},"content":{"rendered":"<p><a href=\"http:\/\/earthobservatory.nasa.gov\/IOTD\/view.php?id=49949&amp;src=eorss-iotd\">Earth Observatory Image of the Day:  Thirteen Years of Greening from SeaWiFS<\/a><\/p>\n<blockquote><p>From 1998 to 2010, the Sea-viewing Wide Field-of-view-Sensor, or SeaWiFS, made a simple but elegant measurement: how \u201cgreen\u201d is the Earth. That is, how much chlorophyll\u2014the pigment that helps turn sunlight into organic energy for plants\u2014is present in the seas and on land. Those measurements offered a window into the planet&#8217;s ability to support life. The long, well-calibrated data record also gives scientists one of the best benchmarks to study the planet\u2019s biological response to a changing environment.<\/p>\n<p>The image above shows SeaWiFS data as a global average over the entire 13-year record. For the oceans, the colors represent the concentration of chlorophyll and indicate where phytoplankton most often bloomed since 1998. On the land, data are depicted as a Normalized Difference Vegetation Index (NDVI), which shows the density of green vegetation. An NDVI of zero means no green plants and a high value (0.8 or 0.9) is a thick canopy of green leaves.<\/p><\/blockquote>\n","protected":false},"excerpt":{"rendered":"<p>Earth Observatory Image of the Day: Thirteen Years of Greening from SeaWiFS From 1998 to 2010, the Sea-viewing Wide Field-of-view-Sensor, or SeaWiFS, made a simple but elegant measurement: how \u201cgreen\u201d is the Earth. That is, how much chlorophyll\u2014the pigment that &hellip; <a href=\"http:\/\/blogs.scienceforums.net\/swansont\/archives\/8361\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[35],"tags":[],"class_list":["post-8361","post","type-post","status-publish","format-standard","hentry","category-other-science"],"_links":{"self":[{"href":"http:\/\/blogs.scienceforums.net\/swansont\/wp-json\/wp\/v2\/posts\/8361","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/blogs.scienceforums.net\/swansont\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/blogs.scienceforums.net\/swansont\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/blogs.scienceforums.net\/swansont\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"http:\/\/blogs.scienceforums.net\/swansont\/wp-json\/wp\/v2\/comments?post=8361"}],"version-history":[{"count":0,"href":"http:\/\/blogs.scienceforums.net\/swansont\/wp-json\/wp\/v2\/posts\/8361\/revisions"}],"wp:attachment":[{"href":"http:\/\/blogs.scienceforums.net\/swansont\/wp-json\/wp\/v2\/media?parent=8361"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/blogs.scienceforums.net\/swansont\/wp-json\/wp\/v2\/categories?post=8361"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/blogs.scienceforums.net\/swansont\/wp-json\/wp\/v2\/tags?post=8361"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}