{"id":1124,"date":"2004-12-03T10:09:00","date_gmt":"2004-12-03T09:09:00","guid":{"rendered":"https:\/\/kids.esa.int\/disappearing_forests\/"},"modified":"2026-10-08T00:36:16","modified_gmt":"2026-10-07T22:36:16","slug":"disappearing_forests","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/sv\/disappearing_forests\/","title":{"rendered":"Skogar som f\u00f6rsvinner"},"content":{"rendered":"
\n

Skogar t\u00e4cker n\u00e4stan en tredjedel av v\u00e4rldens landyta. M\u00e5nga av dem \u00e4r s\u00e5 vidstr\u00e4ckta att det enda s\u00e4ttet att kartl\u00e4gga och studera dem \u00e4r fr\u00e5n rymden.<\/p>\n<\/div>\n

Skogarna \u00e4r inte bara v\u00e4rdefulla k\u00e4llor till virke och br\u00e4nsle, utan de utg\u00f6r ocks\u00e5 en livsmilj\u00f6 f\u00f6r m\u00e5nga olika sorters v\u00e4xter och djur.<\/p>\n

Tr\u00e4d hindrar dessutom vind och regn fr\u00e5n att erodera jorden, de p\u00e5verkar det lokala klimatet och bromsar klimatf\u00f6r\u00e4ndringarna genom att binda kol.<\/p>\n

Tyv\u00e4rr krymper skogarna i snabb takt. Varje \u00e5r f\u00f6rst\u00f6rs stora omr\u00e5den till f\u00f6ljd av m\u00e4nsklig verksamhet.<\/p>\n

N\u00e4r satelliterna flyger \u00f6ver omr\u00e5det kan de f\u00e5 en detaljerad bild av en hel skog p\u00e5 bara n\u00e5gra dagar. De utg\u00f6r det enda snabba och enkla s\u00e4ttet att kartl\u00e4gga de st\u00e4ndigt f\u00f6r\u00e4nderliga skogarna och ge regelbundna uppdateringar om deras tillst\u00e5nd.<\/p>\n

\"Deforestation
Avskogning i Rond\u00f4nia, Brasilien<\/figcaption><\/figure>\n

ESA:s rymdfarkoster ERS och Envisat \u00e4r utrustade med en bildradar som ser igenom molnen och avsl\u00f6jar f\u00f6r\u00e4ndringar i landytan.<\/p>\n

En skanner som avl\u00e4ser ljus i det synliga och infrar\u00f6da spektrumet anv\u00e4nds f\u00f6r att studera v\u00e4xternas tillv\u00e4xt och m\u00e4ta yttemperaturer. Den uppt\u00e4cker \u00e4ven br\u00e4nder som anv\u00e4nds f\u00f6r att r\u00f6ja \u00e5krar.<\/p>\n

Satelliter kan till och med urskilja olika tr\u00e4dslag och visa hur friska de \u00e4r.<\/p>\n

Kartor baserade p\u00e5 satellitbilder hj\u00e4lper f\u00f6rvaltare och lokala myndigheter att skydda och bevara de skogar som krymper.<\/p>","protected":false},"excerpt":{"rendered":"

Forests cover almost a third of world’s land surface. Many of them are so vast that the only way to map and study them is from space. Forests are not […]<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"esa_banner_image":"https:\/\/www.esa.int\/var\/esa\/storage\/images\/esa_multimedia\/images\/2004\/12\/deforastation_012\/17890539-2-eng-GB\/deforastation_01.jpg","esa_banner_description":"","esa_banner_credit":"AP Photo\/Lynne Slandky","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2004\/12\/deforastation_012","esa_external_url":"","esa_external_new_window":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":true},"categories":[42,10,43],"tags":[2],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-1124","post","type-post","status-publish","format-standard","hentry","category-earth","category-learn","category-protecting-earth","tag-background-article"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/posts\/1124","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/comments?post=1124"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/posts\/1124\/revisions"}],"predecessor-version":[{"id":4860,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/posts\/1124\/revisions\/4860"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/media?parent=1124"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/categories?post=1124"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/tags?post=1124"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/panel?post=1124"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/language?post=1124"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/age?post=1124"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/duration?post=1124"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/resource_type?post=1124"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/audience?post=1124"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/wf_post_folders?post=1124"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}