{"id":38825,"date":"2023-05-03T21:20:12","date_gmt":"2023-05-03T21:20:12","guid":{"rendered":"https:\/\/gifex.com\/fr\/?post_type=ficha&#038;p=38825"},"modified":"2023-05-04T01:21:36","modified_gmt":"2023-05-04T01:21:36","slug":"carte-des-precipitations-en-afrique","status":"publish","type":"ficha","link":"https:\/\/gifex.com\/fr\/fichier\/carte-des-precipitations-en-afrique\/","title":{"rendered":"Carte des pr\u00e9cipitations en Afrique"},"content":{"rendered":"<p style=\"text-align: center;\"><label style=\"font-size: 15px;\">Carte des pr\u00e9cipitations montrant les pr\u00e9cipitations moyennes annuelles \u00e0 long terme en Afrique d\u00e9riv\u00e9es des observations des stations. La carte est bas\u00e9e sur l&#8217;ensemble de donn\u00e9es maill\u00e9es produit au Centre mondial de climatologie des pr\u00e9cipitations. Source : Kaspar F, Andersson A, Ziese M et Hollmann R (2022) Contributions \u00e0 l&#8217;am\u00e9lioration de la disponibilit\u00e9 et de la qualit\u00e9 des donn\u00e9es climatiques pour l&#8217;Afrique subsaharienne.<\/label><\/p>\n<p>De vastes parties de l&#8217;Afrique du Nord et du sud, et toute la Corne de l&#8217;Afrique, sont domin\u00e9es par un climat d\u00e9sertique chaud, ou semi-aride chaud pour les endroits les plus humides.<\/p>\n<figure id=\"attachment_38840\" aria-describedby=\"caption-attachment-38840\" style=\"width: 360px\" class=\"wp-caption alignright\"><a href=\"https:\/\/gifex.com\/fr\/wp-content\/uploads\/38825\/Precipitations-annuelles-moyennes-en-Afrique-en-mm-1987.jpg\" target=\"_blank\" rel=\"noopener\"><img fetchpriority=\"high\" decoding=\"async\" class=\"wp-image-38840\" title=\"Pr\u00e9cipitations annuelles moyennes en Afrique en mm 1987.\" src=\"https:\/\/gifex.com\/fr\/wp-content\/uploads\/38825\/Precipitations-annuelles-moyennes-en-Afrique-en-mm-1987-300x219.jpg\" alt=\"Pr\u00e9cipitations annuelles moyennes en Afrique en mm 1987.\" width=\"360\" height=\"262\" srcset=\"https:\/\/gifex.com\/fr\/wp-content\/uploads\/38825\/Precipitations-annuelles-moyennes-en-Afrique-en-mm-1987-300x219.jpg 300w, https:\/\/gifex.com\/fr\/wp-content\/uploads\/38825\/Precipitations-annuelles-moyennes-en-Afrique-en-mm-1987-1024x746.jpg 1024w, https:\/\/gifex.com\/fr\/wp-content\/uploads\/38825\/Precipitations-annuelles-moyennes-en-Afrique-en-mm-1987-768x560.jpg 768w, https:\/\/gifex.com\/fr\/wp-content\/uploads\/38825\/Precipitations-annuelles-moyennes-en-Afrique-en-mm-1987-1536x1120.jpg 1536w, https:\/\/gifex.com\/fr\/wp-content\/uploads\/38825\/Precipitations-annuelles-moyennes-en-Afrique-en-mm-1987-2048x1493.jpg 2048w, https:\/\/gifex.com\/fr\/wp-content\/uploads\/38825\/Precipitations-annuelles-moyennes-en-Afrique-en-mm-1987-1600x1166.jpg 1600w\" sizes=\"(max-width: 360px) 100vw, 360px\" \/><\/a><figcaption id=\"caption-attachment-38840\" class=\"wp-caption-text\"><label style=\"font-size: 15px;\">Pr\u00e9cipitations annuelles moyennes en Afrique en mmm : carte provenant de l&#8217;Organisation pour l&#8217;alimentation et l&#8217;agriculture (FAO) 1987.<\/label><\/figcaption><\/figure>\n<p>Le d\u00e9sert du Sahara est le plus grand d\u00e9sert chaud au monde et l&#8217;un des plus chauds, secs et ensoleill\u00e9s de la plan\u00e8te. Juste au sud du Sahara se trouve une \u00e9troite steppe semi-d\u00e9sertique (une r\u00e9gion semi-aride) : le Sahel. Encore plus au sud, des plaines de savane et essentiellement en Afrique centrale s&#8217;\u00e9tendent des jungles souvent tr\u00e8s dense (for\u00eat tropicale).<\/p>\n<p>La zone \u00e9quatoriale ou proche de la zone de convergence intertropicale est la partie la plus humide d&#8217;Afrique. Chaque ann\u00e9e, une \u00ab ceinture de pluie \u00bb s&#8217;y d\u00e9place vers le nord dans l&#8217;Afrique subsaharienne en ao\u00fbt, puis repasse vers le sud dans le centre-sud de l&#8217;Afrique en mars. Les r\u00e9gions au climat de savane sont situ\u00e9es en Afrique sub-saharienne, avec le Ghana, le Burkina Faso, le Darfour, l&#8217;\u00c9rythr\u00e9e, l&#8217;\u00c9thiopie, et le Botswana ; la saison des pluies y est plus distincte. Par rapport au climat moyen, El Nino cause un ass\u00e8chement de l&#8217;Afrique australe de d\u00e9cembre \u00e0 f\u00e9vrier, et dans le m\u00eame temps, des conditions plus humides en Afrique de l&#8217;Est \u00e9quatoriale.<\/p>\n<p>\u00c0 Madagascar, les aliz\u00e9s humidifient les pentes orientales de l&#8217;\u00eele, en y d\u00e9posant des pluies, et apportent des vents descendants plus secs dans les zones sud et ouest, laissant les sections occidentales de l&#8217;\u00eele \u00ab \u00e0 l&#8217;ombre de la pluie \u00bb. Le nord nord-est de Madagascar est tr\u00e8s pluvieux et le sud-ouest relativement aride.<\/p>\n<p>L&#8217;Afrique australe re\u00e7oit la plupart de ses pr\u00e9cipitations d&#8217;orages convectifs d&#8217;\u00e9t\u00e9 et des cyclones extratropicaux qui se d\u00e9placent au gr\u00e9 des vents d&#8217;ouest. Une fois par d\u00e9cennie, les cyclones tropicaux entra\u00eenent des pr\u00e9cipitations excessives dans la r\u00e9gion.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Carte des pr\u00e9cipitations montrant les pr\u00e9cipitations moyennes annuelles \u00e0 long terme en Afrique d\u00e9riv\u00e9es des observations des stations. La carte est bas\u00e9e &#8230;<\/p>\n","protected":false},"author":1,"featured_media":38828,"template":"","categoria_ficha":[36],"class_list":["post-38825","ficha","type-ficha","status-publish","has-post-thumbnail","hentry","categoria_ficha-cartes-de-l-afrique"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Carte des pr\u00e9cipitations en Afrique - Gifex<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/gifex.com\/fr\/fichier\/carte-des-precipitations-en-afrique\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Carte des pr\u00e9cipitations en Afrique - Gifex\" \/>\n<meta property=\"og:description\" content=\"Carte des pr\u00e9cipitations montrant les pr\u00e9cipitations moyennes annuelles \u00e0 long terme en Afrique d\u00e9riv\u00e9es des observations des stations. 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