{"id":941,"date":"2004-12-16T08:24:00","date_gmt":"2004-12-16T07:24:00","guid":{"rendered":"https:\/\/kids.esa.int\/hurricanes2\/"},"modified":"2026-10-08T00:34:01","modified_gmt":"2026-10-07T22:34:01","slug":"hurricanes2","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/sv\/hurricanes2\/","title":{"rendered":"Orkaner"},"content":{"rendered":"
\n

Orkaner \u00e4r de mest imponerande stormarna p\u00e5 jorden. Varje sommar bildas dessa enorma, virvlande stormar \u00f6ver det varma Atlanten. N\u00e4r de r\u00f6r sig v\u00e4sterut och n\u00e5r land l\u00e4mnar de ett sp\u00e5r av f\u00f6r\u00f6delse efter sig.<\/p>\n<\/div>\n

Vindar p\u00e5 \u00f6ver 200 km\/h river ner kraftledningar och j\u00e4mnar byggnader med marken. Enorma v\u00e5gor och skyfall orsakar ofta allvarliga \u00f6versv\u00e4mningar.<\/p>\n

Orkaner tar upp enorma m\u00e4ngder energi och fukt n\u00e4r de drar \u00f6ver det varma havet. Vissa forskare tror att den globala uppv\u00e4rmningen kan leda till att antalet orkaner \u00f6kar och att de blir \u00e4nnu kraftigare.<\/p>\n

Den mest f\u00f6r\u00f6dande orkanen under de senaste \u00e5ren var Katrina, som drabbade s\u00f6dra USA i augusti 2005. Enorma v\u00e5gor och h\u00e4ftigt regn \u00f6verv\u00e4ldigade New Orleans \u00f6versv\u00e4mningsskydd, vilket ledde till att st\u00f6rre delen av staden hamnade under vatten. Mer \u00e4n 1 800 m\u00e4nniskor omkom. Miljontals m\u00e4nniskor fick r\u00e4ddas, och m\u00e5nga har aldrig \u00e5terv\u00e4nt.<\/p>\n

\"MERIS<\/figure>\n

En viktig uppgift f\u00f6r satelliterna \u00e4r att ge f\u00f6rvarningar om orkaner, s\u00e5 att m\u00e4nniskor hinner ta sig i s\u00e4kerhet. Rymdfarkosterna hj\u00e4lper ocks\u00e5 forskarna att ta reda p\u00e5 vad som h\u00e4nder inuti de virvlande stormarna.<\/p>\n

ESA:s rymdfarkoster MetOP-A, ERS-2 och Envisat kan f\u00f6lja deras of\u00f6ruts\u00e4gbara r\u00f6relser och studera dem fr\u00e5n topp till botten. Envisats instrument skickar tillbaka data om molnen som virvlar runt \u00f6gat i stormens centrum. De m\u00e4ter ocks\u00e5 vindhastigheten runt \u00f6gat.
Samtidigt m\u00e4ter radarinstrumentet vindar och v\u00e5gor \u00f6ver havet. Satelliten m\u00e4ter \u00e4ven temperaturen i de \u00f6vre molnen och p\u00e5 havsytan, samt f\u00f6r\u00e4ndringar i havsniv\u00e5n.
All denna information \u00e4r avg\u00f6rande f\u00f6r att kunna f\u00f6ruts\u00e4ga stormens utveckling.<\/p>","protected":false},"excerpt":{"rendered":"

Hurricanes are the most awesome storms on Earth. Every summer, these huge, rotating storms form over the warm Atlantic Ocean. As they drive westward and hit land, they leave a […]<\/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\/2003\/06\/hurricane3\/17909566-2-eng-GB\/Hurricane.jpeg","esa_banner_description":"","esa_banner_credit":"ESA","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2003\/06\/Hurricane3","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":[64,42,10],"tags":[2],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-941","post","type-post","status-publish","format-standard","hentry","category-climate-change","category-earth","category-learn","tag-background-article"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/posts\/941","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=941"}],"version-history":[{"count":5,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/posts\/941\/revisions"}],"predecessor-version":[{"id":4751,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/posts\/941\/revisions\/4751"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/media?parent=941"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/categories?post=941"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/tags?post=941"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/panel?post=941"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/language?post=941"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/age?post=941"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/duration?post=941"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/resource_type?post=941"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/audience?post=941"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/wf_post_folders?post=941"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}