{"id":558759,"date":"2023-03-03T00:54:03","date_gmt":"2023-03-02T21:54:03","guid":{"rendered":"https:\/\/en.buradabiliyorum.com\/scientists-use-satellites-to-track-earth-greening-amid-climate-change\/"},"modified":"2023-03-03T00:54:03","modified_gmt":"2023-03-02T21:54:03","slug":"scientists-use-satellites-to-track-earth-greening-amid-climate-change","status":"publish","type":"post","link":"https:\/\/buradabiliyorum.com\/en\/scientists-use-satellites-to-track-earth-greening-amid-climate-change\/","title":{"rendered":"#Scientists use satellites to track Earth &#8216;greening&#8217; amid climate change"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_85 counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<label for=\"ez-toc-cssicon-toggle-item-6a407338b7b9b\" class=\"ez-toc-cssicon-toggle-label\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #dd3333;color:#dd3333\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #dd3333;color:#dd3333\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/label><input type=\"checkbox\"  id=\"ez-toc-cssicon-toggle-item-6a407338b7b9b\" checked aria-label=\"Toggle\" \/><nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/buradabiliyorum.com\/en\/scientists-use-satellites-to-track-earth-greening-amid-climate-change\/#%E2%80%9CScientists_use_satellites_to_track_Earth_%E2%80%98greening_amid_climate_change%E2%80%9D\" >&#8220;Scientists use satellites to track Earth &#8216;greening&#8217; amid climate change&#8221;<\/a><\/li><\/ul><\/nav><\/div>\n<h1><span class=\"ez-toc-section\" id=\"%E2%80%9CScientists_use_satellites_to_track_Earth_%E2%80%98greening_amid_climate_change%E2%80%9D\"><\/span>&#8220;Scientists use satellites to track Earth &#8216;greening&#8217; amid climate change&#8221;<span class=\"ez-toc-section-end\"><\/span><\/h1>\n<div>\n<div class=\"article-gallery lightGallery\">\n<div data-thumb=\"https:\/\/scx1.b-cdn.net\/csz\/news\/tmb\/2017\/plant.jpg\" data-src=\"https:\/\/scx2.b-cdn.net\/gfx\/news\/hires\/2017\/plant.jpg\" data-sub-html=\"Credit: CC0 Public Domain\">\n<figure class=\"article-img\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/scx1.b-cdn.net\/csz\/news\/800a\/2017\/plant.jpg\" alt=\"plant\" title=\"Credit: CC0 Public Domain\" width=\"800\" height=\"530\"\/><figcaption class=\"text-darken text-low-up text-truncate-js text-truncate mt-3\">\n                Credit: CC0 Public Domain<br \/>\n            <\/figcaption><\/figure>\n<\/div>\n<\/div>\n<p>North Carolina State University researchers have used satellite imagery and field sensors to estimate worldwide changes in plant leaf growth due to global warming. The researchers found that changes in &#8220;greening,&#8221; or the amount of leaves plants are able to produce, will play a significant role in how much carbon dioxide plants capture and store.<\/p>\n<section class=\"article-banner first-banner ads-336x280\"><!-- \/4988204\/Phys_Story_InText_Box --><br \/>\n      <\/section>\n<p>&#8220;As we work to anticipate the future climate, a big question is: What&#8217;s going to h<a href=\"https:\/\/buradabiliyorum.com\/en\/category\/download-scripts-themes-apps\/\" data-internallinksmanager029f6b8e52c=\"9\" title=\"Download Scripts &amp; Themes &amp; Apps\" target=\"_blank\" rel=\"noopener\">app<\/a>en to vegetation, one of the largest stores of carbon on Earth?&#8221; said study co-author Josh Gray, associate professor of forestry and environmental resources at NC State.<\/p>\n<p>&#8220;We know temperatures will rise and the growing season will be longer in most places, but there are a lot of unknowns about how that will affect how carbon is cycled between plants and the atmosphere. Our new results allow us to be more confident about what those changes will be.&#8221;<\/p>\n<p>In addition to changing the timing and length of the seasons, Gray said climate change has also meant new plant growth in some areas. However, changes in the climate could also contribute to what they call &#8220;browning.&#8221; In addition, Gray said higher temperatures can interfere with plant photosynthesis.<\/p>\n<p>A major outstanding question for climate change researchers is how changes in season length and &#8220;greening&#8221; versus &#8220;browning&#8221; will impact how much carbon dioxide plants will take up from the atmosphere at a global scale. This is particularly important given that carbon dioxide is a greenhouse gas that contributes to global climate change.<\/p>\n<p>&#8220;An earlier spring might be good for plant productivity because you have a longer period of carbon uptake,&#8221; said the study&#8217;s first author Xiaojie Gao, a graduate student in NC State&#8217;s Center for Geospatial Analytics. &#8220;However, a longer autumn might make the situation worse. In autumn, plants tend to emit carbon.&#8221;<\/p>\n<p>In the study published in <i>Global Biogeochemical Cycles<\/i>, researchers wanted to understand the role of growing season length, as well as the numbers of leaves plants are producing, in carbon uptake. To do that, they used satellite measurements of infrared light from 2000-2014 to measure plant leaf biomass. Plants can&#8217;t use infrared light for photosynthesis, so they reflect it.<\/p>\n<p>&#8220;Healthy green leaves are sort of like infrared mirrors,&#8221; Gray said. &#8220;So, they look really &#8216;bright&#8217; to satellites in these wavelengths. With a few tricks, we can calculate an index that is the combination of how bright a place is in infrared and red wavelengths, and corresponds to how many leaves are in a place.&#8221;<\/p>\n<p>In addition, researchers used sensors on towers in the field to measure the exchange of carbon dioxide between plants and the air in order to calculate how much carbon plants removed from the atmosphere each year during photosynthesis.<\/p>\n<p>They found the amount of leaf biomass, or the amount of leaves plants produce in a year, has a bigger impact on net carbon uptake than changes in the growing season length.<\/p>\n<p>&#8220;There are some places where we have more leaves than we used to have, particularly at the higher latitudes,&#8221; Gray said. &#8220;There are also some places where spring might be coming early, and fall might be coming late. These changes are all affecting the amount of photosynthesis that is going on, but the amount of leaves plants are producing has a stronger association with carbon uptake than changes in growing season length. In other words, we found that greening trends were more important pound for pound than an extension in the growing season for carbon uptake.&#8221;<\/p>\n<p>Gray said their findings also suggest satellite imagery could be a helpful tool to help track changes in plant growth, and changes to the carbon cycle, as the climate changes. In addition, their findings should inform future predictions of plants&#8217; future role in carbon capture.<\/p>\n<p>&#8220;Is the vegetation across the globe going to get more productive? That part of the carbon budget has pretty big error bars on it,&#8221; Gray said. &#8220;We think we can use this information in the future to be more confident about what those changes might look like.&#8221;<\/p>\n<div class=\"article-main__more p-4\">\n                                                                                        <strong>More information:<\/strong><br \/>\n                                                Xiaojie Gao et al, Observations of satellite land surface phenology indicate that maximum leaf greenness is more associated with global vegetation productivity than growing season length, <i>Global Biogeochemical Cycles<\/i> (2023).  <a rel=\"nofollow noopener\" target=\"_blank\" data-doi=\"1\" href=\"https:\/\/dx.doi.org\/10.1029\/2022GB007462\">DOI: 10.1029\/2022GB007462<\/a><\/p><\/div>\n<div class=\"d-inline-block text-medium mt-4\">\n<p>                                                    Provided by<br \/>\n                                                                                                            North Carolina State University<br \/>\n                                                                                                                <a rel=\"nofollow noopener\" target=\"_blank\" class=\"icon_open\" href=\"http:\/\/www.ncsu.edu\/\"><br \/>\n                                                            <svg><use href=\"https:\/\/phys.b-cdn.net\/tmpl\/v6\/img\/svg\/sprite.svg#icon_open\" x=\"0\" y=\"0\"\/><\/svg><\/a><\/p><\/div>\n<p>                                        <!-- print only --><\/p>\n<div class=\"d-none d-print-block\">\n<p>                                                <strong>Citation<\/strong>:<br \/>\n                                                Scientists use satellites to track Earth &#8216;greening&#8217; amid climate change (2023, March 2)<br \/>\n                                                retrieved 2 March 2023<br \/>\n                                                from https:\/\/phys.org\/<a href=\"https:\/\/buradabiliyorum.com\/en\/category\/news\/\" data-internallinksmanager029f6b8e52c=\"2\" title=\"News\" target=\"_blank\" rel=\"noopener\">news<\/a>\/2023-03-scientists-satellites-track-earth-greening.html<\/p>\n<p>                                             This document is subject to copyright. 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The researchers found that changes in &#8220;greening,&#8221; or the amount of leaves plants are able to produce,&#8230;<\/p>\n","protected":false},"author":1,"featured_media":558760,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"fifu_image_url":"https:\/\/scx2.b-cdn.net\/gfx\/news\/hires\/2017\/plant.jpg","fifu_image_alt":"","footnotes":""},"categories":[16],"tags":[],"class_list":["post-558759","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-sciencee"],"_links":{"self":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts\/558759","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/comments?post=558759"}],"version-history":[{"count":0,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts\/558759\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/media\/558760"}],"wp:attachment":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/media?parent=558759"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/categories?post=558759"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/tags?post=558759"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}