{"id":459,"date":"2016-08-01T11:19:00","date_gmt":"2016-08-01T09:19:00","guid":{"rendered":"https:\/\/kids.esa.int\/greenland_s_melting_ice_revealed_by_esa_satellite\/"},"modified":"2026-10-08T00:28:27","modified_gmt":"2026-10-07T22:28:27","slug":"greenland_s_melting_ice_revealed_by_esa_satellite","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/da\/greenland_s_melting_ice_revealed_by_esa_satellite\/","title":{"rendered":"Gr\u00f8nlands smeltende is afsl\u00f8ret af ESA-satellit"},"content":{"rendered":"<div class=\"lede\">\n<p>En ESA-satellit ved navn CryoSat har m\u00e5lt ism\u00e6ngden i Gr\u00f8nland. Den har konstateret, at der er smeltet store m\u00e6ngder is. Den faste is omdannes til flydende vand og str\u00f8mmer derefter ud i verdenshavene, hvilket f\u00e5r vandstanden til at stige. Dette bekymrer mange mennesker, fordi stigende havniveauer medf\u00f8rer en r\u00e6kke problemer, s\u00e5som oversv\u00f8mmelser af kystbyer og -byer over hele verden.<\/p>\n<\/div>\n<p>Forskere mener, at isen i Gr\u00f8nland smelter p\u00e5 grund af de globale klimaforandringer. Jorden bliver varmere, og varmen f\u00e5r isen til at smelte. \u00c5rsagerne til de globale klimaforandringer er komplicerede, men man mener, at udledninger fra biler og fabrikker er delvist ansvarlige.<\/p>\n<figure class=\"wp-block-image size-large\" data-width=\"1920\" data-credit=\"Planetary Visions\/CPOM\/UCL\/ESA\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2016\/07\/CryoSat_has_been_measuring_the_thickness_of_ice\" data-licence=\"ESA Standard Licence\" data-licence-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Terms_and_conditions_of_use_of_images_and_videos_available_on_the_esa_website\"><img decoding=\"async\" loading=\"lazy\" style=\"max-width:100%;height:auto\" src=\"https:\/\/www.esa.int\/var\/esa\/storage\/images\/esa_multimedia\/images\/2016\/07\/cryosat_has_been_measuring_the_thickness_of_ice\/17888542-2-eng-GB\/CryoSat_has_been_measuring_the_thickness_of_ice.jpg\" alt=\"CryoSat has been measuring the thickness of ice\"><\/figure>\n<p>CryoSat m\u00e5ler h\u00f8jden p\u00e5 Gr\u00f8nlands enorme gletsjere meget pr\u00e6cist. Det g\u00f8r den ved hj\u00e6lp af et h\u00f8jteknologisk instrument, der kaldes en radarh\u00f8jdem\u00e5ler. N\u00e5r CryoSat befinder sig over Gr\u00f8nland, sender radarh\u00f8jdem\u00e5leren energipulser lodret ned mod isen under sig. Denne energi reflekteres af isen og bev\u00e6ger sig derefter hele vejen tilbage til radarh\u00f8jdem\u00e5leren. Ved at m\u00e5le, hvor lang tid det tager for energien at vende tilbage, er det muligt at beregne, hvor h\u00f8j isen er. CryoSat-satellitten er i stand til at foretage m\u00e5linger langs kanten af iskapperne, hvilket er netop der, hvor de fleste \u00e6ndringer faktisk finder sted!<\/p>\n<figure class=\"wp-block-image size-large\" data-width=\"1920\" data-credit=\"Library image\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2016\/07\/Ice_is_important_for_life_on_Earth_and_maintaining_a_healthy_climate\" data-licence=\"ESA Standard Licence\" data-licence-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Terms_and_conditions_of_use_of_images_and_videos_available_on_the_esa_website\"><img decoding=\"async\" loading=\"lazy\" style=\"max-width:100%;height:auto\" src=\"https:\/\/www.esa.int\/var\/esa\/storage\/images\/esa_multimedia\/images\/2016\/07\/ice_is_important_for_life_on_earth_and_maintaining_a_healthy_climate\/17885693-2-eng-GB\/Ice_is_important_for_life_on_Earth_and_maintaining_a_healthy_climate.jpg\" alt=\"Ice is important for life on Earth and maintaining a healthy climate\"><\/figure>\n<p>CryoSat er et godt eksempel p\u00e5, hvordan satellitter i kredsl\u00f8b om Jorden bidrager til at overv\u00e5ge vores planet. Hvis vi ikke ved, at der er et problem, kan vi jo ikke g\u00f8re noget for at l\u00f8se det! Takket v\u00e6re CryoSat har vi nu et godt indblik i, hvordan det smeltende is p\u00e5 Gr\u00f8nland f\u00e5r havniveauet til at stige, s\u00e5 vi kan v\u00e6re bedre forberedt p\u00e5 at tackle problemet.<\/p>\n<p><b>Sjovt faktum:<\/b> CryoSat kredser i en bane omkring 717 km over Jordens overflade \u2013 n\u00e6sten dobbelt s\u00e5 h\u00f8jt som Den Internationale Rumstation!<\/p>","protected":false},"excerpt":{"rendered":"<p>An ESA satellite called CryoSat has been measuring the amount of ice in Greenland. It has discovered that a lot of ice has been melting. The solid ice is turning [&hellip;]<\/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\/2016\/07\/cryosat_is_in_orbit_around_earth\/17911898-2-eng-GB\/CryoSat_is_in_orbit_around_Earth.jpg","esa_banner_description":"CryoSat is in orbit around Earth","esa_banner_credit":"ESA\/AOES Medialab","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2016\/07\/CryoSat_is_in_orbit_around_Earth","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-459","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\/459","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=459"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/posts\/459\/revisions"}],"predecessor-version":[{"id":4493,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/posts\/459\/revisions\/4493"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/media?parent=459"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/categories?post=459"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/tags?post=459"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/panel?post=459"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/language?post=459"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/age?post=459"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/duration?post=459"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/resource_type?post=459"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/audience?post=459"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/wf_post_folders?post=459"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}