{"id":508,"date":"2016-02-08T09:21:00","date_gmt":"2016-02-08T08:21:00","guid":{"rendered":"https:\/\/kids.esa.int\/sentinel-3_getting_ready_to_watch_over_earth\/"},"modified":"2026-10-08T00:29:01","modified_gmt":"2026-10-07T22:29:01","slug":"sentinel-3_getting_ready_to_watch_over_earth","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/da\/sentinel-3_getting_ready_to_watch_over_earth\/","title":{"rendered":"Sentinel-3 g\u00f8r sig klar til at holde \u00f8je med Jorden"},"content":{"rendered":"
\n

Den 16. februar bliver en ESA-satellit ved navn Sentinel-3 sendt op i kredsl\u00f8b om Jorden! Sentinel-3 er den seneste i en fl\u00e5de af avancerede satellitter, hvis opgave er at unders\u00f8ge vores planets landomr\u00e5der, havene og atmosf\u00e6ren.<\/p>\n<\/div>\n

Sentinel-3 vil fokusere p\u00e5 vores have. Overv\u00e5gningen af havene, der d\u00e6kker 70% af kloden, giver os mulighed for at vurdere, hvor sund Jorden er. Det, der sker i havene, p\u00e5virker os, uanset hvor vi bor. Vandet p\u00e5 vores planet er en vigtig ressource, som vi er n\u00f8dt til at beskytte.<\/p>\n

\"Sentinel-3\"
Sentinel-3<\/figcaption><\/figure>\n

Sentinel-3 vil kredse i en bane over 800 km over Jordens overflade \u2013 det er endnu l\u00e6ngere v\u00e6k fra Jorden end Den Internationale Rumstation, der kredser om vores planet i en h\u00f8jde p\u00e5 omkring 400 km. Fra dette udsigtspunkt vil satellitten m\u00e5le temperaturen, farven og h\u00f8jden p\u00e5 havoverfladen samt tykkelsen p\u00e5 havisen. Disse m\u00e5linger er virkelig vigtige, fordi vi kan bruge dem til at f\u00f8lge med i, hvordan havniveauet \u00e6ndrer sig, hvor meget forurening der er, og hvor sundt livet i havet er.<\/p>\n

N\u00e5r Sentinel-3 ikke overv\u00e5ger havet, vil den bist\u00e5 sin s\u00f8stersatellit Sentinel-2 ved at overv\u00e5ge Jordens landomr\u00e5der. Den vil m\u00e5le vandstanden i s\u00f8er og floder og endda spore farlige skovbrande.<\/p>\n

Der er allerede to Sentinel-satellitter i kredsl\u00f8b, og der er planlagt yderligere fire efter Sentinel-3. Hver satellit vil v\u00e6re i drift i mindst syv \u00e5r. Missionens forskere h\u00e5ber dog, at de vil fungere endnu l\u00e6ngere, og har derfor fyldt nok br\u00e6ndstof p\u00e5 til, at satellitterne kan k\u00f8re i 12 \u00e5r i uafbrudt drift!<\/p>\n

Sjovt faktum:<\/b> Den raket, der skal bringe Sentinel-3 i kredsl\u00f8b, er et ombygget SS-19 interkontinentalt ballistisk missil. Det blev oprindeligt udviklet som et krigsv\u00e5ben, men er nu blevet ombygget til fredelige form\u00e5l. Det passer rigtig godt til Sentinel-3\u2019s mission om at beskytte Jorden!<\/p>","protected":false},"excerpt":{"rendered":"

On 16 February an ESA satellite called Sentinel-3 will blast up into orbit around Earth! Sentinel-3 is the latest in a fleet of advanced satellites whose mission is to study […]<\/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\/02\/mapping_growth\/17911417-2-eng-GB\/Mapping_growth.jpg","esa_banner_description":"Sentinel-3 will monitor Earth\u2019s oceans and create maps to show how healthy sea life is","esa_banner_credit":"ACRI-ST\/CNES\/ESA\/GeoEye\/NASA\/VITO","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2016\/02\/Mapping_growth","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-508","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\/508","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=508"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/posts\/508\/revisions"}],"predecessor-version":[{"id":4520,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/posts\/508\/revisions\/4520"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/media?parent=508"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/categories?post=508"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/tags?post=508"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/panel?post=508"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/language?post=508"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/age?post=508"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/duration?post=508"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/resource_type?post=508"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/audience?post=508"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/wf_post_folders?post=508"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}