{"id":942,"date":"2004-12-03T10:16:00","date_gmt":"2004-12-03T09:16:00","guid":{"rendered":"https:\/\/kids.esa.int\/floods\/"},"modified":"2026-10-08T00:34:02","modified_gmt":"2026-10-07T22:34:02","slug":"floods","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/sv\/floods\/","title":{"rendered":"\u00d6versv\u00e4mningar"},"content":{"rendered":"
\n

\u00d6versv\u00e4mningar \u00e4r den naturkatastrof som orsakar de st\u00f6rsta kostnaderna i v\u00e4rlden. De globala kostnaderna f\u00f6r \u00f6versv\u00e4mningsskador uppg\u00e5r till hundratals miljarder euro. Enbart \u00f6versv\u00e4mningarna i Pakistan i juli 2010 orsakade skador f\u00f6r mer \u00e4n 7 miljarder euro.<\/p>\n<\/div>\n

\u00d6versv\u00e4mningar kan intr\u00e4ffa i kustomr\u00e5den eller i n\u00e4rheten av floder. N\u00e4r stora vattenmassor t\u00e4cker l\u00e5gl\u00e4nta omr\u00e5den kan de orsaka enorma skador p\u00e5 egendom och utg\u00f6ra en livsfara.<\/p>\n

Europeisk rymdteknik \u00e4r ett viktigt verktyg i kampen mot \u00f6versv\u00e4mningar. Den f\u00f6rsta f\u00f6rsvarslinjen utg\u00f6rs av v\u00e4dersatelliterna Meteosat och MetOp. Dessa visar hur stormsystem utvecklas och m\u00f6jligg\u00f6r exakta prognoser f\u00f6r vind och regn.<\/p>\n

Vanliga kameror kan avbilda \u00f6versv\u00e4mningar i dagsljus, n\u00e4r himlen \u00e4r klar. Men \u00f6versv\u00e4mningar intr\u00e4ffar oftast under ett molnt\u00e4cke.<\/p>\n

\"Elbe<\/figure>\n

ESA:s rymdfarkoster Envisat och ERS-2 \u00e4r utrustade med radarinstrument som kan se igenom molnen, b\u00e5de dag och natt. Dessa ger exakta kartor \u00f6ver markanv\u00e4ndningen i de \u00f6versv\u00e4mmade omr\u00e5dena och visar om vattnet har t\u00e4ckt \u00e5krar, skogsmark eller bebyggda omr\u00e5den.<\/p>\n

Radardata kan till och med visa hur mycket vatten som har tr\u00e4ngt ner i marken och om \u201csvampen\u201d \u00e4r full. Genom att anv\u00e4nda satellitdata fr\u00e5n tidigare h\u00e4ndelser g\u00e5r det ocks\u00e5 att planera f\u00f6r framtida \u00f6versv\u00e4mningar.<\/p>","protected":false},"excerpt":{"rendered":"

Flooding is the world\u2019s most expensive type of natural disaster. The cost of global flood damage is hundreds of billions of euros. The Pakistan floods of July 2010 alone caused […]<\/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\/2000\/10\/floods_in_ivrea_italy2\/17866045-3-eng-GB\/Floods_in_Ivrea_Italy.jpg","esa_banner_description":"","esa_banner_credit":"ESA","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2000\/10\/Floods_in_Ivrea_Italy2","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-942","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\/sv\/wp-json\/wp\/v2\/posts\/942","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=942"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/posts\/942\/revisions"}],"predecessor-version":[{"id":4752,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/posts\/942\/revisions\/4752"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/media?parent=942"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/categories?post=942"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/tags?post=942"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/panel?post=942"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/language?post=942"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/age?post=942"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/duration?post=942"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/resource_type?post=942"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/audience?post=942"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/wf_post_folders?post=942"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}