{"id":9031,"date":"2021-08-24T22:31:37","date_gmt":"2021-08-24T22:31:37","guid":{"rendered":"https:\/\/www.africa-press.net\/cameroun\/?p=9031"},"modified":"2021-08-23T17:35:12","modified_gmt":"2021-08-23T17:35:12","slug":"changements-climatiques-premiere-pluie-sur-le-sommet-du-groenland","status":"publish","type":"post","link":"https:\/\/www.africa-press.net\/cameroun\/toutes-les-actualites\/changements-climatiques-premiere-pluie-sur-le-sommet-du-groenland","title":{"rendered":"Changements climatiques: Premi\u00e8re pluie sur le sommet du Groenland"},"content":{"rendered":"

Africa-Press<\/a> – Cameroun<\/a>. <\/strong><\/span>Pour la premi\u00e8re fois depuis les premiers relev\u00e9s, de la pluie a \u00e9t\u00e9 enregistr\u00e9e \u00e0 la station de recherche situ\u00e9e pr\u00e8s du sommet de la calotte glaciaire du Groenland, un endroit o\u00f9 jusqu’\u00e0 pr\u00e9sent les pr\u00e9cipitations tombaient sous forme de glace ou de neige.<\/b><\/p>\n

Il n\u2019y a pas d\u2019observation ant\u00e9rieure de pluie \u00e0 cet endroit (72.58\u00b0 N 38.46\u00b0 W), qui atteint 3215 m\u00e8tres d\u2019altitude, note le Centre am\u00e9ricain des donn\u00e9es sur la neige et la glace (NSIDC) au sujet des pr\u00e9cipitations qui sont tomb\u00e9es le 14 ao\u00fbt dernier.<\/p>\n

Objectivement, c\u2019est vraiment quelque chose de gros, c\u2019est sans pr\u00e9c\u00e9dent, rapporte William Colgan, chercheur principal au Service g\u00e9ologique du Danemark et du Groenland (GSDG), qui g\u00e8re l’une des trois stations m\u00e9t\u00e9orologiques du sommet.<\/p>\n

La pluie a commenc\u00e9 \u00e0 tomber \u00e0 5 h, heure locale, le matin du 14 et a \u00e9t\u00e9 photographi\u00e9e par Alicia Bradley, la technicienne scientifique \u00e0 la station Summit de la National Science Foundation, une heure plus tard.<\/p>\n

Elle et Zoe Courville, une ing\u00e9nieure polaire sp\u00e9cialiste de la neige, ont \u00e9t\u00e9 les t\u00e9moins du ph\u00e9nom\u00e8ne. Il faisait 0,48 degr\u00e9 Celsius \u00e0 8 h 40 le matin en question.<\/p>\n

C\u2019est seulement la quatri\u00e8me fois que des temp\u00e9ratures situ\u00e9es au-dessus de 0 ont \u00e9t\u00e9 enregistr\u00e9es \u00e0 cet endroit. Quand c\u2019est arriv\u00e9 en 1995, 2012 et 2019, il n\u2019a pas plu. Avant cela, le dernier record de temp\u00e9ratures au-dessus du point de cong\u00e9lation, bas\u00e9 sur des carottes de glace, remonte aux ann\u00e9es 1880.<\/p>\n

William Colgan, qui a r\u00e9cemment publi\u00e9 une \u00e9tude sur les chutes de pluie dans l\u2019Inlandsis (un tr\u00e8s grand glacier, NDLR) du Groenland, explique que pour avoir de la pluie dans cette r\u00e9gion, il faut que beaucoup d\u2019air chaud et humide soit pouss\u00e9 vers le haut depuis les basses latitudes. Cela arrive plus fr\u00e9quemment \u00e0 cause des changements climatiques et c\u2019est mauvais pour la calotte glaciaire, dit-il.<\/p>\n","protected":false},"excerpt":{"rendered":"

Africa-Press – Cameroun. Pour la premi\u00e8re fois depuis les premiers relev\u00e9s, de la pluie a \u00e9t\u00e9 enregistr\u00e9e \u00e0 la station de recherche situ\u00e9e pr\u00e8s du sommet de la calotte glaciaire du Groenland, un endroit o\u00f9 jusqu’\u00e0 pr\u00e9sent les pr\u00e9cipitations tombaient sous forme de glace ou de neige. Il n\u2019y a pas d\u2019observation ant\u00e9rieure de pluie […]<\/p>\n","protected":false},"author":82,"featured_media":9030,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[22,11,10],"tags":[36,50,49,218,217],"class_list":["post-9031","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-divers","category-homepage-french","category-toutes-les-actualites","tag-africa-press","tag-africa-press-cameroun","tag-cameroun","tag-climatiques","tag-nsidc"],"yoast_head":"\nChangements climatiques: Premi\u00e8re pluie sur le sommet du Groenland - Cameroun<\/title>\n<meta name=\"description\" content=\"Pour la premi\u00e8re fois depuis les premiers relev\u00e9s, de la pluie a \u00e9t\u00e9 enregistr\u00e9e \u00e0 la station de recherche situ\u00e9e pr\u00e8 ...\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.africa-press.net\/cameroun\/toutes-les-actualites\/changements-climatiques-premiere-pluie-sur-le-sommet-du-groenland\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Changements climatiques: Premi\u00e8re pluie sur le sommet du Groenland\" \/>\n<meta property=\"og:description\" content=\"Pour la premi\u00e8re fois depuis les premiers relev\u00e9s, de la pluie a \u00e9t\u00e9 enregistr\u00e9e \u00e0 la station de recherche situ\u00e9e pr\u00e8 ...\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.africa-press.net\/cameroun\/toutes-les-actualites\/changements-climatiques-premiere-pluie-sur-le-sommet-du-groenland\" \/>\n<meta property=\"og:site_name\" content=\"Cameroun\" \/>\n<meta property=\"article:published_time\" content=\"2021-08-24T22:31:37+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/static.africa-press.net\/cameroun\/sites\/57\/2021\/08\/img-6123dc37c8d4c.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"960\" \/>\n\t<meta property=\"og:image:height\" content=\"540\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"cfeditorfr\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"cfeditorfr\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.africa-press.net\/cameroun\/toutes-les-actualites\/changements-climatiques-premiere-pluie-sur-le-sommet-du-groenland#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.africa-press.net\/cameroun\/toutes-les-actualites\/changements-climatiques-premiere-pluie-sur-le-sommet-du-groenland\"},\"author\":{\"name\":\"cfeditorfr\",\"@id\":\"https:\/\/www.africa-press.net\/cameroun\/#\/schema\/person\/2b1cf3cd81a31e3cd26889ca66d677f1\"},\"headline\":\"Changements climatiques: Premi\u00e8re pluie sur le sommet du Groenland\",\"datePublished\":\"2021-08-24T22:31:37+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.africa-press.net\/cameroun\/toutes-les-actualites\/changements-climatiques-premiere-pluie-sur-le-sommet-du-groenland\"},\"wordCount\":347,\"commentCount\":0,\"image\":{\"@id\":\"https:\/\/www.africa-press.net\/cameroun\/toutes-les-actualites\/changements-climatiques-premiere-pluie-sur-le-sommet-du-groenland#primaryimage\"},\"thumbnailUrl\":\"https:\/\/static.africa-press.net\/cameroun\/sites\/57\/2021\/08\/img-6123dc37c8d4c.jpg\",\"keywords\":[\"Africa Press\",\"Africa Press-Cameroun\",\"Cameroun\",\"climatiques\",\"NSIDC\"],\"articleSection\":[\"Divers\",\"homepage-french\",\"Toutes les actualit\u00e9s\"],\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/www.africa-press.net\/cameroun\/toutes-les-actualites\/changements-climatiques-premiere-pluie-sur-le-sommet-du-groenland#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.africa-press.net\/cameroun\/toutes-les-actualites\/changements-climatiques-premiere-pluie-sur-le-sommet-du-groenland\",\"url\":\"https:\/\/www.africa-press.net\/cameroun\/toutes-les-actualites\/changements-climatiques-premiere-pluie-sur-le-sommet-du-groenland\",\"name\":\"Changements climatiques: Premi\u00e8re pluie sur le sommet du Groenland - 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