{"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\/sv\/satellites_see_through_hurricanes\/","title":{"rendered":"Satelliter ser rakt igenom orkaner!"},"content":{"rendered":"<div class=\"lede\">\n<p>Hittills i \u00e5r har 10 orkaner h\u00e4rjat \u00f6ver Atlanten \u2013 det \u00e4r f\u00f6rsta g\u00e5ngen p\u00e5 \u00f6ver 100 \u00e5r som det har f\u00f6rekommit s\u00e5 m\u00e5nga i rad. Att f\u00f6rst\u00e5 hur dessa kraftfulla stormar bildas och att f\u00f6ruts\u00e4ga vart de kommer att r\u00f6ra sig \u00e4r avg\u00f6rande f\u00f6r att r\u00e4dda liv. Tv\u00e5 Sentinel-satelliter fr\u00e5n ESA har bidragit till detta uppdrag.<\/p>\n<\/div>\n<p>Att anv\u00e4nda satelliter som kretsar kring jorden f\u00f6r att fotografera orkaner uppifr\u00e5n \u00e4r anv\u00e4ndbart. Men Sentinel-satelliterna har en speciell funktion som \u00e4r \u00e4nnu b\u00e4ttre. De \u00e4r utrustade med h\u00f6gteknologiska radaravbildningssystem f\u00f6r att \u00f6vervaka havsisens utbredning, sp\u00e5ra oljeutsl\u00e4pp och till och med se hur landskapet f\u00f6r\u00e4ndras efter jordb\u00e4vningar. Forskare vid det tyska rymdcentret (DLR) har utvecklat en ny teknik f\u00f6r radaravbildning som g\u00f6r det m\u00f6jligt f\u00f6r Sentinel-satelliterna att se igenom orkaner och avbilda vattnet 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 \u00e4r mycket farliga, s\u00e4rskilt om de n\u00e5r land<\/figcaption><\/figure>\n<p>Satelliterna var inte avsedda f\u00f6r att observera orkaner, s\u00e5 det \u00e4r imponerande att forskarna lyckades hitta ett nytt s\u00e4tt att utnyttja tekniken. Tack vare detta kan vi f\u00e5 kunskap om ytvindarna och v\u00e5gh\u00f6jderna direkt under orkanerna. Det skulle vara oerh\u00f6rt farligt att skicka m\u00e4nniskor i b\u00e5tar in i stormarna f\u00f6r att samla in denna information. Att ist\u00e4llet anv\u00e4nda satelliter \u00e4r mycket s\u00e4kert.<\/p>\n<p>Med hj\u00e4lp av de data som samlas in av Sentinels kan forskarna f\u00f6ruts\u00e4ga hur f\u00f6r\u00f6dande en orkan kommer att bli och var den kan komma att dra in \u00f6ver land d\u00e4r m\u00e4nniskor bor. Samma information kan vidarebefordras till bes\u00e4ttningar p\u00e5 fartyg i n\u00e4rheten av orkanerna, s\u00e5 att de varnas och kan h\u00e5lla sig undan.<\/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>Med hj\u00e4lp av radar har man skapat denna karta som visar hur h\u00f6ga v\u00e5gorna fr\u00e5n orkanen Irma var<\/figcaption><\/figure>\n<p>Att kunna se rakt igenom orkaner l\u00e5ter som science fiction, men Sentinel-satelliterna har redan anv\u00e4nt den h\u00e4r tekniken. I september drabbade orkanen Irma Kuba och Florida Keys, vilket ledde till enorma v\u00e5gor p\u00e5 upp till 10 meter. Sentinel-satelliterna befann sig h\u00f6gt uppe i luften, d\u00e4r de \u00f6vervakade l\u00e4get och samlade in v\u00e4rdefull information.<\/p>\n<p>Sentinel-satelliterna visar sig vara mycket anv\u00e4ndbara verktyg som hj\u00e4lper oss att l\u00e4ra oss mer om jorden och skydda de m\u00e4nniskor som bor p\u00e5 den.<\/p>\n<p><b>Rolig fakta:<\/b> De tv\u00e5 satelliterna som anv\u00e4nds f\u00f6r att se igenom orkaner heter Sentinel-1A och 1B. De ing\u00e5r i en hel familj av Sentinel-satelliter som kretsar kring och observerar jorden.<\/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\/sv\/wp-json\/wp\/v2\/posts\/403","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/comments?post=403"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/posts\/403\/revisions"}],"predecessor-version":[{"id":4446,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/posts\/403\/revisions\/4446"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/media?parent=403"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/categories?post=403"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/tags?post=403"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/panel?post=403"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/language?post=403"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/age?post=403"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/duration?post=403"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/resource_type?post=403"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/audience?post=403"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/wf_post_folders?post=403"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}