{"id":9115,"date":"2009-09-18T10:52:51","date_gmt":"2009-09-18T09:52:51","guid":{"rendered":"http:\/\/www.oneoak.info\/wordpress\/?p=39"},"modified":"2009-09-18T10:52:51","modified_gmt":"2009-09-18T09:52:51","slug":"stunning-canopy-images","status":"publish","type":"post","link":"https:\/\/sylva.org.uk\/stunning-canopy-images\/","title":{"rendered":"Stunning canopy images"},"content":{"rendered":"<p>We have received some stunning images of the canopy of the OneOak tree.  These were taken when Forest Research scientists visited the tree last week to measure it.<\/p>\n<div id=\"attachment_59\" style=\"width: 458px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-59\" class=\"size-full wp-image-59\" title=\"OneOak_canopy2_web\" src=\"http:\/\/www.oneoak.info\/wordpress\/wp-content\/uploads\/2009\/09\/OneOak_canopy2_web.jpg\" alt=\"Hemispherical image of the OneOak tree canopy\" width=\"448\" height=\"336\" \/><p id=\"caption-attachment-59\" class=\"wp-caption-text\">Hemispherical image of the OneOak tree canopy<\/p><\/div>\n<p>Using a fisheye lens fitted to a digital camera, they took <em>hemispherical<\/em> images looking up into the tree canopy.  This produced a complete circular image taking in 180 degrees field of view.<\/p>\n<p>The picture here is one of many taken by the scientists.  Back in their laboratory they joined these all together to form a complete picture of the canopy from all angles.  They then used special software that calculated the proportions of light and leaves.  This gives us the <a href=\"http:\/\/en.wikipedia.org\/wiki\/Leaf_Area_Index\" target=\"_blank\" rel=\"noopener\">Leaf Area Index<\/a>.<\/p>\n<p>The Leaf Area Index is used to calculate the biomass of the tree.  Read more <a href=\"http:\/\/www.oneoak.info\/tree_facts.php\">here<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>We have received some stunning images of the canopy of the OneOak tree. These were taken when Forest Research scientists visited the tree last week to measure it. Using a fisheye lens fitted to a digital camera, they took hemispherical images looking up into the tree canopy. This produced a complete circular image taking in&hellip;<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_eb_attr":"","_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[1],"tags":[368,373],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/sylva.org.uk\/wp-json\/wp\/v2\/posts\/9115"}],"collection":[{"href":"https:\/\/sylva.org.uk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sylva.org.uk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sylva.org.uk\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/sylva.org.uk\/wp-json\/wp\/v2\/comments?post=9115"}],"version-history":[{"count":0,"href":"https:\/\/sylva.org.uk\/wp-json\/wp\/v2\/posts\/9115\/revisions"}],"wp:attachment":[{"href":"https:\/\/sylva.org.uk\/wp-json\/wp\/v2\/media?parent=9115"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sylva.org.uk\/wp-json\/wp\/v2\/categories?post=9115"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sylva.org.uk\/wp-json\/wp\/v2\/tags?post=9115"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}