{"id":437,"date":"2017-06-09T06:53:00","date_gmt":"2017-06-09T04:53:00","guid":{"rendered":"https:\/\/kids.esa.int\/satellites_track_earth_s_changing_climate\/"},"modified":"2026-10-08T00:28:12","modified_gmt":"2026-10-07T22:28:12","slug":"satellites_track_earth_s_changing_climate","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/da\/satellites_track_earth_s_changing_climate\/","title":{"rendered":"Satellitter overv\u00e5ger Jordens skiftende klima"},"content":{"rendered":"<div class=\"lede\">\n<p>Sidste \u00e5r oplevede Jorden de h\u00f8jeste temperaturer, siden man begyndte at f\u00f8re statistik. Det lyder m\u00e5ske som en god nyhed \u2013 vi kan jo alle godt lide, n\u00e5r det er varmt udenfor \u2013 men desv\u00e6rre er det et tegn p\u00e5, at vores klima er ved at \u00e6ndre sig. Satellitter, der kredser om Jorden, hj\u00e6lper os med at holde \u00f8je med disse \u00e6ndringer og unders\u00f8ge, hvad der pr\u00e6cist for\u00e5rsager dem.<\/p>\n<\/div>\n<p>Klimaforandringerne udg\u00f8r et stort problem for menneskene p\u00e5 Jorden. For eksempel f\u00e5r de stigende temperaturer isen i Arktis til at smelte, hvilket medf\u00f8rer, at havets overflade stiger med omkring 3 mm om \u00e5ret. Det lyder m\u00e5ske ikke af meget, men det l\u00f8ber hurtigt op og kan f\u00f8re til, at byer ved kysten samt mange \u00f8er bliver oversv\u00f8mmet.<\/p>\n<\/p>\n<p>Stigende havniveauer er en farlig f\u00f8lge af klimaforandringerne, og derfor bruges satellitter til at kortl\u00e6gge vandstanden over hele vores planet. De hj\u00e6lper ogs\u00e5 med at finde ud af, hvor det ekstra vand, der for\u00e5rsager stigningen, kommer fra. Smeltende gletsjere og havis er en v\u00e6sentlig \u00e5rsag. Desuden udvider vandet i vores have sig, n\u00e5r det bliver varmere, hvilket yderligere bidrager til stigningen.<\/p>\n<p>At observere Jorden fra rummet handler dog ikke kun om havniveauet. Satellitter bruges til at overv\u00e5ge drivhusgasser, ozonkoncentrationen, jordfugtigheden og meget mere! Indsamling af store m\u00e6ngder data er det f\u00f8rste skridt p\u00e5 vejen mod god videnskab og den bedste m\u00e5de for os at tr\u00e6ffe kloge beslutninger om klimaforandringerne.<\/p>\n<figure class=\"wp-block-image size-large\" data-width=\"3872\" data-credit=\"ESA\u2013M. Drusch\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2017\/06\/Warmer_temperatures_can_cause_sea_ice_to_melt\" 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\/2017\/06\/warmer_temperatures_can_cause_sea_ice_to_melt\/17908864-2-eng-GB\/Warmer_temperatures_can_cause_sea_ice_to_melt.jpg\" alt=\"Warmer temperatures can cause sea ice to melt\"><figcaption>H\u00f8jere temperaturer kan f\u00e5 havisen til at smelte<\/figcaption><\/figure>\n<p>Desv\u00e6rre er der et problem med at bruge satellitter til klimaforskning. Forskere, der studerer Jorden, har brug for data, der d\u00e6kker en lang periode \u2013 helst mere end 30 \u00e5r! \u2013 for at kunne fastsl\u00e5, at der rent faktisk sker \u00e6ndringer. Men satellitter er ikke konstrueret til at fungere s\u00e5 l\u00e6nge i rummet. Teknologien udvikler sig hele tiden, s\u00e5 der bygges og opsendes nye satellitter for at erstatte de \u00e6ldre, hvilket kan medf\u00f8re visse huller i vores overv\u00e5gning af Jorden.<\/p>\n<figure class=\"wp-block-image size-large\" data-width=\"2102\" data-credit=\"ESA\/P. Carril\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2017\/06\/Sentinel_satellites_are_doing_an_excellent_job_of_tracking_changes_on_Earth\" 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\/2017\/06\/sentinel_satellites_are_doing_an_excellent_job_of_tracking_changes_on_earth\/17902715-2-eng-GB\/Sentinel_satellites_are_doing_an_excellent_job_of_tracking_changes_on_Earth.jpg\" alt=\"Sentinel satellites are doing an excellent job of tracking changes on Earth\"><figcaption>Sentinel-satellitterne g\u00f8r et fremragende stykke arbejde med at overv\u00e5ge forandringer p\u00e5 Jorden<\/figcaption><\/figure>\n<p>For at bidrage til at l\u00f8se dette problem har ESA oprettet Climate Change Initiative \u2013 forkortet CCI \u2013 som samler alle de indsamlede oplysninger for at give os det mest fuldst\u00e6ndige billede muligt af, hvordan Jorden forandrer sig. Det betyder, at vi nu r\u00e5der over fremragende data over lange tidsperioder. Data fra CCI viser klare tegn p\u00e5, at vores klima er under forandring.<\/p>\n<p>Hvad synes du, vi b\u00f8r g\u00f8re for at passe bedre p\u00e5 vores planet og mindske virkningerne af klimaforandringerne?<\/p>\n<p><b>Sjovt faktum:<\/b> ESA har udgivet en digital bog om satellitter og klimaforandringer, som du kan downloade gratis til iPad og Android-tablets!<\/p>","protected":false},"excerpt":{"rendered":"<p>Last year Earth experienced the hottest temperatures since people started keeping records. This might sound like good news \u2013 we all like it when it is warm outside \u2013 but [&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\/2017\/06\/esa_satellites_are_keeping_watch_over_our_planet\/18248955-2-eng-GB\/ESA_satellites_are_keeping_watch_over_our_planet.jpg","esa_banner_description":"ESA satellites are keeping watch over our planet","esa_banner_credit":"ESA","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2017\/06\/ESA_satellites_are_keeping_watch_over_our_planet","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":[26],"tags":[],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-437","post","type-post","status-publish","format-standard","hentry","category-news"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/posts\/437","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=437"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/posts\/437\/revisions"}],"predecessor-version":[{"id":4473,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/posts\/437\/revisions\/4473"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/media?parent=437"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/categories?post=437"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/tags?post=437"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/panel?post=437"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/language?post=437"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/age?post=437"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/duration?post=437"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/resource_type?post=437"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/audience?post=437"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/wf_post_folders?post=437"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}