{"id":1123,"date":"2004-12-03T10:13:00","date_gmt":"2004-12-03T09:13:00","guid":{"rendered":"https:\/\/kids.esa.int\/how_do_we_observe_the_earth\/"},"modified":"2026-10-08T00:36:15","modified_gmt":"2026-10-07T22:36:15","slug":"how_do_we_observe_the_earth","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/nb\/how_do_we_observe_the_earth\/","title":{"rendered":"Hvordan observerer vi Jorden?"},"content":{"rendered":"<div class=\"lede\">\n<p>I mange \u00e5rhundrer var den eneste m\u00e5ten \u00e5 f\u00e5 et godt overblikk over et stort omr\u00e5de p\u00e5, \u00e5 klatre opp til h\u00f8yere terreng. Deretter gjorde oppfinnelsen av luftskip og fly det mye enklere \u00e5 observere jorden.<\/p>\n<\/div>\n<p>I romalderen har man i stadig st\u00f8rre grad benyttet satellitter til \u00e5 unders\u00f8ke alle aspekter ved planeten v\u00e5r.<\/p>\n<p>Siden de observerer Jorden fra sv\u00e6rt lang avstand, kalles de ofte \u201cfjernm\u00e5lingssatellitter\u201d.<\/p>\n<p>De mest detaljerte bildene av jordens overflate og atmosf\u00e6re sendes tilbake av satellitter i lav bane som f\u00f8rer dem over nord- og s\u00f8rpolen.<\/p>\n<p>Mens jorden roterer under dem, kan disse satellittene ta bilder av hele planeten \u2013 stripe for stripe \u2013 med noen dagers mellomrom.<\/p>\n<figure class=\"wp-block-image size-large\" data-width=\"3072\" data-credit=\"ESA\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2000\/10\/Envisat_artist_s_impression3\" 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\/2000\/10\/envisat_artist_s_impression3\/17866231-3-eng-GB\/Envisat_artist_s_impression.jpg\" alt=\"Envisat, artist&#x27;s impression\"><figcaption>Envisat, kunstnerisk fremstilling<\/figcaption><\/figure>\n<p>Satellitter i polare baner kartlegger is- og sn\u00f8dekke, arealbruk, luft- og vannforurensning samt lokalt v\u00e6r. ESAs polarsatellitter er den europeiske fjernm\u00e5lingssatellitten (ERS-2) og milj\u00f8satellitten Envisat.<\/p>\n<p>Andre romfart\u00f8yer holder kontinuerlig blikket rettet mot den samme delen av Jorden mens de g\u00e5r i bane 36 000 km over ekvator. Dette gir dem et bredere overblikk, men det betyr at de ikke kan se Jorden like detaljert.<\/p>\n<p>Europa har hittil skutt opp \u00e5tte v\u00e6rsatellitter, kalt Meteosat, i denne typen \u201cgeostasjon\u00e6r\u201d bane.<\/p>","protected":false},"excerpt":{"rendered":"<p>For many centuries, the only way to obtain a good view of a large area was to climb to higher ground. Then the invention of balloons and aircraft made Earth [&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\/2004\/07\/the_world_seen_by_envisat_s_meris2\/17870967-2-eng-GB\/The_world_seen_by_Envisat_s_MERIS.jpg","esa_banner_description":"The world seen by Envisat 's MERIS","esa_banner_credit":"ESA 2004","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2004\/07\/The_world_seen_by_Envisat_s_MERIS2","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":[42,10,59],"tags":[2],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-1123","post","type-post","status-publish","format-standard","hentry","category-earth","category-learn","category-natural-disasters","tag-background-article"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/posts\/1123","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/comments?post=1123"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/posts\/1123\/revisions"}],"predecessor-version":[{"id":4859,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/posts\/1123\/revisions\/4859"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/media?parent=1123"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/categories?post=1123"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/tags?post=1123"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/panel?post=1123"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/language?post=1123"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/age?post=1123"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/duration?post=1123"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/resource_type?post=1123"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/audience?post=1123"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/wf_post_folders?post=1123"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}