{"id":809,"date":"2004-12-01T16:18:00","date_gmt":"2004-12-01T15:18:00","guid":{"rendered":"https:\/\/kids.esa.int\/world_weather\/"},"modified":"2026-10-08T00:32:30","modified_gmt":"2026-10-07T22:32:30","slug":"world_weather","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/fr\/world_weather\/","title":{"rendered":"M\u00e9t\u00e9o mondiale"},"content":{"rendered":"
\n

Le temps peut se d\u00e9grader rapidement, il est donc essentiel pour les pr\u00e9visionnistes de recevoir des informations mises \u00e0 jour en permanence depuis l'espace.<\/p>\n<\/div>\n

Toutes les 15 minutes, de jour comme de nuit, le satellite europ\u00e9en Meteosat-9 transmet des images m\u00e9t\u00e9orologiques couvrant pr\u00e8s d\u2019un tiers de la plan\u00e8te. Positionn\u00e9 \u00e0 36 000 km au-dessus de l\u2019Afrique de l\u2019Ouest, il observe en permanence la m\u00eame zone. Un satellite de r\u00e9serve se tient toujours pr\u00eat \u00e0 prendre le relais en cas de probl\u00e8me.<\/p>\n

Les donn\u00e9es en visible, infrarouge (chaleur), de vapeur d'eau et autres valeurs essentielles sont transmises \u00e0 l'op\u00e9rateur des satellites Meteosat, Eumetsat. Les donn\u00e9es brutes sont trait\u00e9es \u00e0 Darmstadt, en Allemagne, puis transmises aux utilisateurs.<\/p>\n

\"MetOp
Repr\u00e9sentation artistique de MetOp<\/figcaption><\/figure>\n

Depuis octobre 2006, les donn\u00e9es m\u00e9t\u00e9orologiques sont renvoy\u00e9es par le satellite europ\u00e9en MetOp-A. Les donn\u00e9es transmises par ce satellite sur orbite polaire sont relay\u00e9es \u00e0 travers une station au sol situ\u00e9e sur l\u2019\u00eele norv\u00e9gienne de Spitsbergen. Les images et les informations sur l\u2019atmosph\u00e8re et les oc\u00e9ans sont \u00e9galement envoy\u00e9es en continu vers la Terre pour les utilisateurs locaux.<\/p>\n

Les satellites europ\u00e9ens font partie d'un r\u00e9seau mondial de surveillance m\u00e9t\u00e9orologique. De nombreux pays partagent les donn\u00e9es fournies par leurs satellites.<\/p>\n

Les satellites Meteosat ont \u00e9galement aid\u00e9 les partenaires de l'Europe \u00e0 d'autres \u00e9gards. Lorsqu'un satellite am\u00e9ricain est tomb\u00e9 en panne en 1991, Meteosat-3 a travers\u00e9 l'Atlantique pour prendre le relais.<\/p>\n

En 1998, Meteosat-5 a \u00e9t\u00e9 d\u00e9plac\u00e9 au-dessus de l'Oc\u00e9an Indien. Dans le cadre d\u2019une exp\u00e9rience internationale, il a particip\u00e9 \u00e0 la surveillance de cette zone bien connue pour ses moussons.<\/p>","protected":false},"excerpt":{"rendered":"

The weather can suddenly change for the worse, so it is vital that forecasters receive continuous updates from space. Every 15 minutes, day or night, Europe’s Meteosat-9 sends back images […]<\/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\/2001\/03\/meteosat_-_artificially_coloured_area_europe2\/17865454-3-eng-GB\/Meteosat_-_artificially_coloured_area_Europe.jpg","esa_banner_description":"Meteosat - artificially coloured area Europe","esa_banner_credit":"ESA\/EUMETSAT","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2001\/03\/Meteosat_-_artificially_coloured_area_Europe2","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":[10,44,40],"tags":[2],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-809","post","type-post","status-publish","format-standard","hentry","category-learn","category-spacecraft","category-technology","tag-background-article"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/posts\/809","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/comments?post=809"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/posts\/809\/revisions"}],"predecessor-version":[{"id":4696,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/posts\/809\/revisions\/4696"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/media?parent=809"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/categories?post=809"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/tags?post=809"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/panel?post=809"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/language?post=809"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/age?post=809"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/duration?post=809"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/resource_type?post=809"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/audience?post=809"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/wf_post_folders?post=809"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}