{"id":878,"date":"2005-09-09T13:37:00","date_gmt":"2005-09-09T11:37:00","guid":{"rendered":"https:\/\/kids.esa.int\/cryosat_europe_s_ice_explorer\/"},"modified":"2026-10-08T00:33:18","modified_gmt":"2026-10-07T22:33:18","slug":"cryosat_europe_s_ice_explorer","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/da\/cryosat_europe_s_ice_explorer\/","title":{"rendered":"Cryosat: Europas isforskningssatellit"},"content":{"rendered":"
\n

De fleste forskere er enige om, at vores planet bliver varmere. De f\u00f8rste 10 \u00e5r af dette \u00e5rhundrede var det varmeste \u00e5rti, der nogensinde er registreret. Dette vil sandsynligvis medf\u00f8re v\u00e6sentlige \u00e6ndringer i Europas klima. Men hvad med polarkalotterne? Smelter isen? Og hvis ja, hvilken indvirkning vil det have p\u00e5 det globale klima og havniveauet?<\/p>\n<\/div>\n

En europ\u00e6isk satellit leverer nu nogle af svarene. Cryosat, der blev opsendt den 8. april 2010, flyver over polerne i en h\u00f8jde af 720 km.<\/p>\n

Ved hj\u00e6lp af et avanceret radarinstrument m\u00e5ler Cryosat sm\u00e5 \u00e6ndringer i istykkelsen ved at sende radiosignaler mod overfladen og opfange ekkoerne. Hvis ekkoerne kommer tilbage hurtigere, m\u00e5 isoverfladen v\u00e6re h\u00f8jere.<\/p>\n

Cryosat kan registrere \u00e6ndringer p\u00e5 under 2 cm om \u00e5ret i h\u00f8jden af isen, der flyder p\u00e5 Det Arktiske Ocean. Over de enorme iskapper p\u00e5 det antarktiske kontinent kan den m\u00e5le \u00e5rlige \u00e6ndringer p\u00e5 under 2 mm.<\/p>\n

Disse resultater hj\u00e6lper forskerne med at finde ud af, om havisen i Arktis bryder op og smelter. De viser ogs\u00e5, om iskapperne, der d\u00e6kker Antarktis\u2019 landmasse og det omgivende hav, krymper eller vokser. Det er vigtigt, fordi havniveauet kan stige med mange meter, hvis iskapperne smelter. Mange lavtliggende byer og lande risikerer da at blive oversv\u00f8mmet.<\/p>\n

CryoSat er den tredje Earth Explorer-mission, der skal opsendes som led i ESA\u2019s Living Planet-program (efter GOCE, ESA\u2019s tyngdekraftsmission, og SMOS, ESA\u2019s vandmission).<\/p>","protected":false},"excerpt":{"rendered":"

Most scientists agree that our planet is getting warmer. The first 10 years of this century were the warmest decade on record. This is likely to cause important changes to […]<\/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\/2005\/06\/artist_s_impression_of_cryosat_in_orbit2\/17878071-2-eng-GB\/Artist_s_impression_of_CryoSat_in_orbit.jpg","esa_banner_description":"Artist's impression of CryoSat in orbit","esa_banner_credit":"ESA\/AOES Medialab","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2005\/06\/Artist_s_impression_of_CryoSat_in_orbit2","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":[64,42,10],"tags":[],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-878","post","type-post","status-publish","format-standard","hentry","category-climate-change","category-earth","category-learn"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/posts\/878","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/comments?post=878"}],"version-history":[{"count":1,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/posts\/878\/revisions"}],"predecessor-version":[{"id":2021,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/posts\/878\/revisions\/2021"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/media?parent=878"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/categories?post=878"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/tags?post=878"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/panel?post=878"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/language?post=878"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/age?post=878"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/duration?post=878"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/resource_type?post=878"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/audience?post=878"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/wf_post_folders?post=878"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}