{"id":987,"date":"2006-02-27T10:08:00","date_gmt":"2006-02-27T09:08:00","guid":{"rendered":"https:\/\/kids.esa.int\/greenland_s_melting_glaciers\/"},"modified":"2026-10-08T00:34:33","modified_gmt":"2026-10-07T22:34:33","slug":"greenland_s_melting_glaciers","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/sv\/greenland_s_melting_glaciers\/","title":{"rendered":"Gr\u00f6nlands sm\u00e4ltande glaci\u00e4rer"},"content":{"rendered":"
\n

Trots sitt namn \u00e4r Gr\u00f6nland n\u00e4stan helt t\u00e4ckt av en enorm ist\u00e4cke. Uppgifter fr\u00e5n flera ESA-satelliter tyder dock p\u00e5 att detta vita t\u00e4cke sm\u00e4lter snabbare \u00e4n v\u00e4ntat.<\/p>\n<\/div>\n

Den senaste studien av Gr\u00f6nlands glaci\u00e4rer bygger p\u00e5 data som samlats in av fyra satelliter i omloppsbana runt jorden mellan 1996 och 2005. ESAs europeiska fj\u00e4rranalyssatelliter ERS-1 och ERS-2, ESAs Envisat och Kanadas Radarsat-1 \u00e4r alla utrustade med radarinstrument som kan observera ytan b\u00e5de dag och natt, \u00e4ven vid t\u00e4t molnt\u00e4cke.<\/p>\n

Framf\u00f6r allt var Eric Rignot fr\u00e5n NASA:s Jet Propulsion Laboratory och forskaren Pannir Kanagaratnam vid University of Kansas intresserade av att m\u00e4ta f\u00f6r\u00e4ndringar i h\u00f6jden p\u00e5 Gr\u00f6nlands ist\u00e4cke.<\/p>\n

\"Envisat
Envisat-bild av glaci\u00e4ren Rinks Isbrae, Gr\u00f6nland<\/figcaption><\/figure>\n

Genom att studera satellitdata har forskarna kunnat konstatera att glaci\u00e4rerna i s\u00f6dra och mellersta Gr\u00f6nland r\u00f6r sig snabbare mot havet. I takt med att klimatet har blivit varmare har den m\u00e4ngd is som de sl\u00e4pper ut i Atlanten f\u00f6rdubblats under de senaste 10 \u00e5ren. Forskarna ber\u00e4knar att Gr\u00f6nland bidrar med cirka 0,5 mm per \u00e5r till den globala havsniv\u00e5h\u00f6jningen p\u00e5 cirka 2,5 mm per \u00e5r.<\/p>\n

Framtida studier med hj\u00e4lp av satelliter som Envisat och ERS kommer att ge viktig information om hur ist\u00e4cket och havsniv\u00e5n utvecklas p\u00e5 l\u00e5ng sikt.<\/p>\n

Gr\u00f6nland \u00e4r v\u00e4rldens st\u00f6rsta \u00f6. Dess ist\u00e4cke t\u00e4cker n\u00e4stan 2 miljoner kvadratkilometer och har en genomsnittlig tjocklek p\u00e5 2,3 kilometer. Om all is sm\u00e4lte skulle den globala havsniv\u00e5n stiga med upp till sju meter.<\/p>","protected":false},"excerpt":{"rendered":"

Despite its name, Greenland is almost entirely covered by a huge sheet of ice. However, data from several ESA satellites suggest that this white blanket is melting faster than expected. […]<\/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\/2006\/02\/envisat_image_of_south_greenland2\/17899607-2-eng-GB\/Envisat_image_of_South_Greenland.jpg","esa_banner_description":"Envisat image of South Greenland","esa_banner_credit":"ESA","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2006\/02\/Envisat_image_of_South_Greenland2","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":[42,10,66],"tags":[],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-987","post","type-post","status-publish","format-standard","hentry","category-earth","category-learn","category-water-world"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/posts\/987","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=987"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/posts\/987\/revisions"}],"predecessor-version":[{"id":4779,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/posts\/987\/revisions\/4779"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/media?parent=987"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/categories?post=987"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/tags?post=987"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/panel?post=987"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/language?post=987"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/age?post=987"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/duration?post=987"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/resource_type?post=987"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/audience?post=987"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/wf_post_folders?post=987"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}