{"id":276,"date":"2009-04-06T08:49:13","date_gmt":"2009-04-06T06:49:13","guid":{"rendered":"http:\/\/vandiepenbeeck.org\/?p=276"},"modified":"2009-04-06T08:49:13","modified_gmt":"2009-04-06T06:49:13","slug":"images-remarquables-17","status":"publish","type":"post","link":"http:\/\/vandiepenbeeck.org\/?p=276","title":{"rendered":"Images remarquables"},"content":{"rendered":"

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Les rues de nuages et les tourbillons von Karman au- dessus de la mer du Groenland<\/span><\/b><\/p>\n

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\"JanMayen_AMO_2009055.jpg\"<\/a>Le 24 F\u00e9vrier 2009, des vents froids du nord (peut-\u00eatre des vents catabatiques du Groenland) ont rencontr\u00e9 de l’air humide sur la mer du Groenland, et leur rencontre a g\u00e9n\u00e9r\u00e9 des dizaines de rang\u00e9es parall\u00e8les de nuages, qu’on appelle commun\u00e9ment des \u00abrues de nuages\u00bb, dans le ciel autour de l’\u00eele de Jan Mayen.<\/span><\/p>\n

L’\u00eele a ajout\u00e9 sa propre influence \u00e0 la m\u00e9t\u00e9o, en cr\u00e9ant un obstacle aux vents dominants. Comme l’eau qui coule autour d’un rocher dans un ruisseau, les vents divergent sur le c\u00f4t\u00e9 nord de l’\u00eele et convergent sur le c\u00f4t\u00e9 sud.<\/span> Ces mouvements en spirale du vent derri\u00e8re l\u2019\u00eele de Jan Mayen sont connus sous le nom de tourbillons von Karman.<\/span><\/p>\n

En haut \u00e0 gauche de l’image, un petit morceau de la c\u00f4te recouverte de neige du Groenland est visible et une mosa\u00efque de la glace de mer longe la rive. Pr\u00e8s du littoral, les \u00e9coulements de glace sont grands et leurs formes sont irr\u00e9guli\u00e8res.<\/span><\/p>\n

Cette image a \u00e9t\u00e9 captur\u00e9e par le MODIS (<\/span>Moderate Resolution Imaging Spectroradiometer) embarqu\u00e9 sur le<\/span> satellite Aqua de la NASA \u00e0 12h40 UTC (1h40 heure locale, de Jan Mayen) le 24 f\u00e9vrier 2009.<\/span><\/p>\n

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Source<\/span> NASA<\/span><\/a><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

Les rues de nuages et les tourbillons von Karman au- dessus de la mer du Groenland Le 24 F\u00e9vrier 2009, des vents froids du nord (peut-\u00eatre des vents catabatiques du Groenland) ont rencontr\u00e9 de l’air humide sur la mer du Groenland, et leur rencontre a g\u00e9n\u00e9r\u00e9 des dizaines de rang\u00e9es parall\u00e8les de nuages, qu’on appelle […]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"class_list":["post-276","post","type-post","status-publish","format-standard","hentry","category-meteo"],"_links":{"self":[{"href":"http:\/\/vandiepenbeeck.org\/index.php?rest_route=\/wp\/v2\/posts\/276"}],"collection":[{"href":"http:\/\/vandiepenbeeck.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/vandiepenbeeck.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/vandiepenbeeck.org\/index.php?rest_route=\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"http:\/\/vandiepenbeeck.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=276"}],"version-history":[{"count":0,"href":"http:\/\/vandiepenbeeck.org\/index.php?rest_route=\/wp\/v2\/posts\/276\/revisions"}],"wp:attachment":[{"href":"http:\/\/vandiepenbeeck.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=276"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/vandiepenbeeck.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=276"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/vandiepenbeeck.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=276"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}