{"id":403,"date":"2017-10-30T11:06:00","date_gmt":"2017-10-30T10:06:00","guid":{"rendered":"https:\/\/kids.esa.int\/satellites_see_through_hurricanes\/"},"modified":"2026-10-08T00:27:46","modified_gmt":"2026-10-07T22:27:46","slug":"satellites_see_through_hurricanes","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/nb\/satellites_see_through_hurricanes\/","title":{"rendered":"Satellitter ser rett gjennom orkaner!"},"content":{"rendered":"<div class=\"lede\">\n<p>S\u00e5 langt i \u00e5r har 10 orkaner herjet over Atlanterhavet \u2013 det er f\u00f8rste gang p\u00e5 over 100 \u00e5r at det har v\u00e6rt s\u00e5 mange p\u00e5 rad. \u00c5 forst\u00e5 hvordan disse kraftige stormene dannes, og \u00e5 forutsi hvor de vil bevege seg, er avgj\u00f8rende for \u00e5 redde liv. To Sentinel-satellitter fra ESA har bidratt til dette arbeidet.<\/p>\n<\/div>\n<p>Det er nyttig \u00e5 bruke satellitter i bane rundt Jorden til \u00e5 fotografere orkaner ovenfra. Men Sentinel-satellittene har et spesielt triks som er enda bedre. De er utstyrt med h\u00f8yteknologiske radaravbildningssystemer for \u00e5 overv\u00e5ke havisniv\u00e5et, spore oljeutslipp og til og med se hvordan landskapet endres etter jordskjelv. Forskere fra det tyske romfartscentret (DLR) har utviklet en ny radaravbildningsteknikk som gj\u00f8r at Sentinel-satellittene kan se gjennom orkaner og avbilde vannet under dem!<\/p>\n<figure class=\"wp-block-image size-large\" data-width=\"1920\" data-credit=\"Contains modified Copernicus Sentinel data (2017), processed by ESA, CC BY-SA 3.0 IGO\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2017\/10\/Hurricanes_are_very_dangerous_especially_if_they_reach_land\" data-licence=\"CC BY-SA 3.0 IGO or 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\/10\/hurricanes_are_very_dangerous_especially_if_they_reach_land\/17867785-3-eng-GB\/Hurricanes_are_very_dangerous_especially_if_they_reach_land.jpg\" alt=\"Hurricanes are very dangerous, especially if they reach land\"><figcaption>Orkaner er sv\u00e6rt farlige, spesielt hvis de n\u00e5r land<\/figcaption><\/figure>\n<p>Satellittene ble ikke utviklet for \u00e5 observere orkaner, s\u00e5 det er imponerende at forskerne klarte \u00e5 finne en ny m\u00e5te \u00e5 utnytte teknologien p\u00e5. Takket v\u00e6re denne muligheten kan vi f\u00e5 kunnskap om vindforholdene ved overflaten og b\u00f8lgeh\u00f8ydene rett under orkanene. Det ville v\u00e6re utrolig farlig \u00e5 sende folk ut i b\u00e5ter inn i stormene for \u00e5 innhente denne informasjonen. \u00c5 bruke satellitter i stedet er sv\u00e6rt trygt.<\/p>\n<p>Dataene som samles inn av Sentinels-satellittene gj\u00f8r det mulig for forskere \u00e5 forutsi hvor \u00f8deleggende en orkan vil bli, og hvor den kan treffe land der det bor mennesker. Den samme informasjonen kan videreformidles til sj\u00f8folk p\u00e5 skip i n\u00e6rheten av orkanene, slik at de blir advart om \u00e5 holde seg unna.<\/p>\n<figure class=\"wp-block-image size-large\" data-width=\"1532\" data-credit=\"Contains modified Copernicus Sentinel data (2017), processed by DLR\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2017\/10\/Radar_was_used_to_create_this_map_showing_how_high_the_waves_caused_by_hurricane_Irma_were\" 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\/10\/radar_was_used_to_create_this_map_showing_how_high_the_waves_caused_by_hurricane_irma_were\/18250916-2-eng-GB\/Radar_was_used_to_create_this_map_showing_how_high_the_waves_caused_by_hurricane_Irma_were.jpg\" alt=\"Radar was used to create this map showing how high the waves caused by hurricane Irma were\"><figcaption>Radar ble brukt til \u00e5 lage dette kartet, som viser hvor h\u00f8ye b\u00f8lgene for\u00e5rsaket av orkanen Irma var<\/figcaption><\/figure>\n<p>\u00c5 kunne se gjennom orkaner h\u00f8res ut som science fiction, men Sentinel-satellittene har allerede brukt denne teknikken. I september rammet orkanen Irma Cuba og Florida Keys, noe som f\u00f8rte til enorme b\u00f8lger p\u00e5 opptil 10 meter. Sentinel-satellittene befant seg over omr\u00e5det, hvor de overv\u00e5ket situasjonen og samlet inn verdifull informasjon.<\/p>\n<p>Sentinel-satellittene viser seg \u00e5 v\u00e6re sv\u00e6rt nyttige verkt\u00f8y som hjelper oss \u00e5 l\u00e6re mer om jorden og beskytte menneskene som bor her.<\/p>\n<p><b>Et interessant faktum:<\/b> De to satellittene som brukes til \u00e5 se gjennom orkaner, heter Sentinel-1A og 1B. De inng\u00e5r i en hel familie av Sentinel-satellitter som g\u00e5r i bane rundt Jorden og observerer den.<\/p>","protected":false},"excerpt":{"rendered":"<p>So far this year 10 hurricanes have raged across the Atlantic \u2013 the first time that there have been so many in a row in over 100 years. Understanding how [&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\/10\/the_sentinel-1_satellites_have_radar_vision\/17891613-2-eng-GB\/The_Sentinel-1_satellites_have_radar_vision.jpg","esa_banner_description":"The Sentinel-1 satellites have radar vision","esa_banner_credit":"ESA\/ATG medialab","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2017\/10\/The_Sentinel-1_satellites_have_radar_vision","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-403","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\/nb\/wp-json\/wp\/v2\/posts\/403","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=403"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/posts\/403\/revisions"}],"predecessor-version":[{"id":4446,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/posts\/403\/revisions\/4446"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/media?parent=403"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/categories?post=403"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/tags?post=403"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/panel?post=403"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/language?post=403"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/age?post=403"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/duration?post=403"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/resource_type?post=403"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/audience?post=403"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/wf_post_folders?post=403"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}