{"id":56233,"date":"2023-12-20T13:35:08","date_gmt":"2023-12-20T13:35:08","guid":{"rendered":"https:\/\/www.africa-press.net\/tchad\/politique\/le-pollen-un-outil-pour-mieux-comprendre-le-climat-localement"},"modified":"2023-12-20T14:20:07","modified_gmt":"2023-12-20T14:20:07","slug":"le-pollen-un-outil-pour-mieux-comprendre-le-climat-localement","status":"publish","type":"post","link":"https:\/\/www.africa-press.net\/tchad\/toutes-les-actualites\/le-pollen-un-outil-pour-mieux-comprendre-le-climat-localement","title":{"rendered":"Le pollen, un outil pour mieux comprendre le climat localement"},"content":{"rendered":"

Africa-Press – Tchad. <\/strong><\/span>L’analyse du pollen ancien est une discipline rare mais indispensable \u00ab\u00a0a\u0300 la compre\u0301hension des climats re\u0301gionaux souvent complexes, afin de perfectionner les mode\u0300les\u00a0\u00bb, estime la pale\u0301oclimatologue Maria Fernanda Sanchez Goni, dont les travaux nourrissent une exposition a\u0300 Bordeaux jusqu’au 29 fe\u0301vrier.<\/p>\n

Cette directrice d’e\u0301tudes a\u0300 l’E\u0301cole pratique des hautes e\u0301tudes (EPHE), spe\u0301cialise\u0301e dans la pale\u0301oclimatologie et les sciences de l’environnement, est l’une des seules scientifiques dans le monde a\u0300 s’e\u0302tre spe\u0301cialise\u0301e dans l’e\u0301tude du pollen extrait des carottes se\u0301dimentaires profondes pre\u0301leve\u0301es dans l’oce\u0301an.<\/p>\n

Cette e\u0301tude est \u00ab\u00a0tre\u0300s efficace pour documenter l’e\u0301volution de la ve\u0301ge\u0301tation au cours du temps et fournir des donne\u0301es qualitatives et quantitatives du climat\u00a0\u00bb, c’est-a\u0300-dire des tempe\u0301ratures atmosphe\u0301riques et des pre\u0301cipitations, explique-t-elle.<\/p>\n

Ce travail de reconstruction des climats passe\u0301s, combine\u0301 a\u0300 ceux simule\u0301s par les mode\u0300les, est \u00ab\u00a0indispensable pour comprendre le syste\u0300me climatique naturel, dans un climat actuel de\u0301ja\u0300 influence\u0301 par l’Homme, et ainsi mieux anticiper le climat futur\u00a0\u00bb, ajoute Mme Sanchez Goni.<\/p>\n

L’exposition, coorganise\u0301e par l’EPHE, l’unite\u0301 mixte de recherche EPOC de l’universite\u0301 de Bordeaux et l’Observatoire aquitain des sciences de l’univers (OASU), met en avant l’importance \u00ab\u00a0d’e\u0301largir la base des donne\u0301es polliniques surtout dans les re\u0301gions-sous e\u0301tudie\u0301es, comme l’Ame\u0301rique et la Sibe\u0301rie,\u00a0\u00bb afin de garantir une meilleure compre\u0301hension climatique re\u0301gionale.<\/p>\n

La chercheuse estime aussi que les donne\u0301es extraites de son travail permettraient \u00ab\u00a0de perfectionner les mode\u0300les climatiques\u00a0\u00bb utilise\u0301s par des groupes d’experts comme le GIEC qu’elle juge \u00ab\u00a0de\u0301faillants, notamment au niveau re\u0301gional ou\u0300 le climat se complexifie\u00a0\u00bb.<\/p>\n

Il y a \u00ab\u00a0des zones du monde dans lesquelles les simulations de mode\u0300les sont incohe\u0301rentes comme en Asie par exemple, projetant des e\u0301volutions diffe\u0301rentes de la mousson\u00a0\u00bb, a-t-elle pre\u0301cise\u0301.<\/p>\n

L’e\u0301tude du pollen ancien permet e\u0301galement de \u00ab\u00a0comprendre l’impact des changements de la ve\u0301ge\u0301tation sur le climat car la ve\u0301ge\u0301tation peut re\u0301guler la quantite\u0301 de CO2 atmosphe\u0301rique, la vapeur d’eau et donc les pre\u0301cipitations, et la tempe\u0301rature atmosphe\u0301rique\u00a0\u00bb.<\/p>\n

Ainsi, selon elle, \u00ab\u00a0oui, il faut planter des arbres pour lutter contre le re\u0301chauffement climatique mais pas partout\u00a0\u00bb. Son travail aide a\u0300 savoir ou\u0300 il faut planter et quelles essences.<\/p>\n

Ludovic Devaux, assistant-inge\u0301nieur au laboratoire Pale\u0301oclimatologie et pale\u0301oenvironnements marins de l’EPHE, souligne l’utilite\u0301 de l’exposition bordelaise pour \u00ab\u00a0vulgariser\u00a0\u00bb le travail des scientifiques, afin de \u00ab\u00a0sensibiliser le grand public a\u0300 l’importance de la recherche pale\u0301oclimatique\u00a0\u00bb qui e\u0301tudie les climats du passe\u0301 et leurs variations.<\/p>\n

Pour plus d’informations et d’analyses sur la Tchad<\/a>, suivez Africa-Press<\/a><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"

Africa-Press – Tchad. L’analyse du pollen ancien est une discipline rare mais indispensable \u00ab\u00a0a\u0300 la compre\u0301hension des climats re\u0301gionaux souvent complexes, afin de perfectionner les mode\u0300les\u00a0\u00bb, estime la pale\u0301oclimatologue Maria Fernanda Sanchez Goni, dont les travaux nourrissent une exposition a\u0300 Bordeaux jusqu’au 29 fe\u0301vrier. Cette directrice d’e\u0301tudes a\u0300 l’E\u0301cole pratique des hautes e\u0301tudes (EPHE), spe\u0301cialise\u0301e […]<\/p>\n","protected":false},"author":82,"featured_media":56232,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[22,10],"tags":[37,292,29],"class_list":["post-56233","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-divers","category-toutes-les-actualites","tag-africa-press","tag-africa-press-tchad","tag-tchad"],"yoast_head":"\nLe pollen, un outil pour mieux comprendre le climat localement - tchad<\/title>\n<meta name=\"description\" content=\"L'analyse du pollen ancien est une discipline rare mais indispensable "a\u0300 la compre\u0301hension des climats re\u0301gionaux souve ...\" \/>\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\/tchad\/toutes-les-actualites\/le-pollen-un-outil-pour-mieux-comprendre-le-climat-localement\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Le pollen, un outil pour mieux comprendre le climat localement\" \/>\n<meta property=\"og:description\" content=\"L'analyse du pollen ancien est une discipline rare mais indispensable "a\u0300 la compre\u0301hension des climats re\u0301gionaux souve ...\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.africa-press.net\/tchad\/toutes-les-actualites\/le-pollen-un-outil-pour-mieux-comprendre-le-climat-localement\" \/>\n<meta property=\"og:site_name\" content=\"tchad\" \/>\n<meta property=\"article:published_time\" content=\"2023-12-20T13:35:08+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-12-20T14:20:07+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/static.africa-press.net\/tchad\/sites\/41\/2023\/12\/sm_1703069180.646413.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"900\" \/>\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\/tchad\/toutes-les-actualites\/le-pollen-un-outil-pour-mieux-comprendre-le-climat-localement#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.africa-press.net\/tchad\/toutes-les-actualites\/le-pollen-un-outil-pour-mieux-comprendre-le-climat-localement\"},\"author\":{\"name\":\"cfeditorfr\",\"@id\":\"https:\/\/www.africa-press.net\/tchad\/#\/schema\/person\/2b1cf3cd81a31e3cd26889ca66d677f1\"},\"headline\":\"Le pollen, un outil pour mieux comprendre le climat localement\",\"datePublished\":\"2023-12-20T13:35:08+00:00\",\"dateModified\":\"2023-12-20T14:20:07+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.africa-press.net\/tchad\/toutes-les-actualites\/le-pollen-un-outil-pour-mieux-comprendre-le-climat-localement\"},\"wordCount\":507,\"commentCount\":0,\"image\":{\"@id\":\"https:\/\/www.africa-press.net\/tchad\/toutes-les-actualites\/le-pollen-un-outil-pour-mieux-comprendre-le-climat-localement#primaryimage\"},\"thumbnailUrl\":\"https:\/\/static.africa-press.net\/tchad\/sites\/41\/2023\/12\/sm_1703069180.646413.jpg\",\"keywords\":[\"Africa Press\",\"Africa Press-Tchad\",\"Tchad\"],\"articleSection\":[\"Divers\",\"Toutes les actualit\u00e9s\"],\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/www.africa-press.net\/tchad\/toutes-les-actualites\/le-pollen-un-outil-pour-mieux-comprendre-le-climat-localement#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.africa-press.net\/tchad\/toutes-les-actualites\/le-pollen-un-outil-pour-mieux-comprendre-le-climat-localement\",\"url\":\"https:\/\/www.africa-press.net\/tchad\/toutes-les-actualites\/le-pollen-un-outil-pour-mieux-comprendre-le-climat-localement\",\"name\":\"Le pollen, un outil pour mieux comprendre le climat localement - tchad\",\"isPartOf\":{\"@id\":\"https:\/\/www.africa-press.net\/tchad\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.africa-press.net\/tchad\/toutes-les-actualites\/le-pollen-un-outil-pour-mieux-comprendre-le-climat-localement#primaryimage\"},\"image\":{\"@id\":\"https:\/\/www.africa-press.net\/tchad\/toutes-les-actualites\/le-pollen-un-outil-pour-mieux-comprendre-le-climat-localement#primaryimage\"},\"thumbnailUrl\":\"https:\/\/static.africa-press.net\/tchad\/sites\/41\/2023\/12\/sm_1703069180.646413.jpg\",\"datePublished\":\"2023-12-20T13:35:08+00:00\",\"dateModified\":\"2023-12-20T14:20:07+00:00\",\"author\":{\"@id\":\"https:\/\/www.africa-press.net\/tchad\/#\/schema\/person\/2b1cf3cd81a31e3cd26889ca66d677f1\"},\"description\":\"L'analyse du pollen ancien est une discipline rare mais indispensable \\\"a\u0300 la compre\u0301hension des climats re\u0301gionaux souve ...\",\"breadcrumb\":{\"@id\":\"https:\/\/www.africa-press.net\/tchad\/toutes-les-actualites\/le-pollen-un-outil-pour-mieux-comprendre-le-climat-localement#breadcrumb\"},\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.africa-press.net\/tchad\/toutes-les-actualites\/le-pollen-un-outil-pour-mieux-comprendre-le-climat-localement\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\/\/www.africa-press.net\/tchad\/toutes-les-actualites\/le-pollen-un-outil-pour-mieux-comprendre-le-climat-localement#primaryimage\",\"url\":\"https:\/\/static.africa-press.net\/tchad\/sites\/41\/2023\/12\/sm_1703069180.646413.jpg\",\"contentUrl\":\"https:\/\/static.africa-press.net\/tchad\/sites\/41\/2023\/12\/sm_1703069180.646413.jpg\",\"width\":1200,\"height\":900,\"caption\":\"Le pollen, un outil pour mieux comprendre le climat localement\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.africa-press.net\/tchad\/toutes-les-actualites\/le-pollen-un-outil-pour-mieux-comprendre-le-climat-localement#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Accueil\",\"item\":\"https:\/\/www.africa-press.net\/tchad\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Le pollen, un outil pour mieux comprendre le climat localement\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.africa-press.net\/tchad\/#website\",\"url\":\"https:\/\/www.africa-press.net\/tchad\/\",\"name\":\"tchad\",\"description\":\"Just another Africa News Agency Sites site\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.africa-press.net\/tchad\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"fr-FR\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.africa-press.net\/tchad\/#\/schema\/person\/2b1cf3cd81a31e3cd26889ca66d677f1\",\"name\":\"cfeditorfr\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"Le pollen, un outil pour mieux comprendre le climat localement - tchad","description":"L'analyse du pollen ancien est une discipline rare mais indispensable \"a\u0300 la compre\u0301hension des climats re\u0301gionaux souve ...","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.africa-press.net\/tchad\/toutes-les-actualites\/le-pollen-un-outil-pour-mieux-comprendre-le-climat-localement","og_locale":"fr_FR","og_type":"article","og_title":"Le pollen, un outil pour mieux comprendre le climat localement","og_description":"L'analyse du pollen ancien est une discipline rare mais indispensable \"a\u0300 la compre\u0301hension des climats re\u0301gionaux souve ...","og_url":"https:\/\/www.africa-press.net\/tchad\/toutes-les-actualites\/le-pollen-un-outil-pour-mieux-comprendre-le-climat-localement","og_site_name":"tchad","article_published_time":"2023-12-20T13:35:08+00:00","article_modified_time":"2023-12-20T14:20:07+00:00","og_image":[{"width":1200,"height":900,"url":"https:\/\/static.africa-press.net\/tchad\/sites\/41\/2023\/12\/sm_1703069180.646413.jpg","type":"image\/jpeg"}],"author":"cfeditorfr","twitter_card":"summary_large_image","twitter_misc":{"\u00c9crit par":"cfeditorfr","Dur\u00e9e de lecture estim\u00e9e":"2 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.africa-press.net\/tchad\/toutes-les-actualites\/le-pollen-un-outil-pour-mieux-comprendre-le-climat-localement#article","isPartOf":{"@id":"https:\/\/www.africa-press.net\/tchad\/toutes-les-actualites\/le-pollen-un-outil-pour-mieux-comprendre-le-climat-localement"},"author":{"name":"cfeditorfr","@id":"https:\/\/www.africa-press.net\/tchad\/#\/schema\/person\/2b1cf3cd81a31e3cd26889ca66d677f1"},"headline":"Le pollen, un outil pour mieux comprendre le climat localement","datePublished":"2023-12-20T13:35:08+00:00","dateModified":"2023-12-20T14:20:07+00:00","mainEntityOfPage":{"@id":"https:\/\/www.africa-press.net\/tchad\/toutes-les-actualites\/le-pollen-un-outil-pour-mieux-comprendre-le-climat-localement"},"wordCount":507,"commentCount":0,"image":{"@id":"https:\/\/www.africa-press.net\/tchad\/toutes-les-actualites\/le-pollen-un-outil-pour-mieux-comprendre-le-climat-localement#primaryimage"},"thumbnailUrl":"https:\/\/static.africa-press.net\/tchad\/sites\/41\/2023\/12\/sm_1703069180.646413.jpg","keywords":["Africa Press","Africa Press-Tchad","Tchad"],"articleSection":["Divers","Toutes les actualit\u00e9s"],"inLanguage":"fr-FR","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/www.africa-press.net\/tchad\/toutes-les-actualites\/le-pollen-un-outil-pour-mieux-comprendre-le-climat-localement#respond"]}]},{"@type":"WebPage","@id":"https:\/\/www.africa-press.net\/tchad\/toutes-les-actualites\/le-pollen-un-outil-pour-mieux-comprendre-le-climat-localement","url":"https:\/\/www.africa-press.net\/tchad\/toutes-les-actualites\/le-pollen-un-outil-pour-mieux-comprendre-le-climat-localement","name":"Le pollen, un outil pour mieux comprendre le climat localement - tchad","isPartOf":{"@id":"https:\/\/www.africa-press.net\/tchad\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.africa-press.net\/tchad\/toutes-les-actualites\/le-pollen-un-outil-pour-mieux-comprendre-le-climat-localement#primaryimage"},"image":{"@id":"https:\/\/www.africa-press.net\/tchad\/toutes-les-actualites\/le-pollen-un-outil-pour-mieux-comprendre-le-climat-localement#primaryimage"},"thumbnailUrl":"https:\/\/static.africa-press.net\/tchad\/sites\/41\/2023\/12\/sm_1703069180.646413.jpg","datePublished":"2023-12-20T13:35:08+00:00","dateModified":"2023-12-20T14:20:07+00:00","author":{"@id":"https:\/\/www.africa-press.net\/tchad\/#\/schema\/person\/2b1cf3cd81a31e3cd26889ca66d677f1"},"description":"L'analyse du pollen ancien est une discipline rare mais indispensable \"a\u0300 la compre\u0301hension des climats re\u0301gionaux souve ...","breadcrumb":{"@id":"https:\/\/www.africa-press.net\/tchad\/toutes-les-actualites\/le-pollen-un-outil-pour-mieux-comprendre-le-climat-localement#breadcrumb"},"inLanguage":"fr-FR","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.africa-press.net\/tchad\/toutes-les-actualites\/le-pollen-un-outil-pour-mieux-comprendre-le-climat-localement"]}]},{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/www.africa-press.net\/tchad\/toutes-les-actualites\/le-pollen-un-outil-pour-mieux-comprendre-le-climat-localement#primaryimage","url":"https:\/\/static.africa-press.net\/tchad\/sites\/41\/2023\/12\/sm_1703069180.646413.jpg","contentUrl":"https:\/\/static.africa-press.net\/tchad\/sites\/41\/2023\/12\/sm_1703069180.646413.jpg","width":1200,"height":900,"caption":"Le pollen, un outil pour mieux comprendre le climat localement"},{"@type":"BreadcrumbList","@id":"https:\/\/www.africa-press.net\/tchad\/toutes-les-actualites\/le-pollen-un-outil-pour-mieux-comprendre-le-climat-localement#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Accueil","item":"https:\/\/www.africa-press.net\/tchad\/"},{"@type":"ListItem","position":2,"name":"Le pollen, un outil pour mieux comprendre le climat localement"}]},{"@type":"WebSite","@id":"https:\/\/www.africa-press.net\/tchad\/#website","url":"https:\/\/www.africa-press.net\/tchad\/","name":"tchad","description":"Just another Africa News Agency Sites site","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.africa-press.net\/tchad\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"fr-FR"},{"@type":"Person","@id":"https:\/\/www.africa-press.net\/tchad\/#\/schema\/person\/2b1cf3cd81a31e3cd26889ca66d677f1","name":"cfeditorfr"}]}},"_links":{"self":[{"href":"https:\/\/www.africa-press.net\/tchad\/wp-json\/wp\/v2\/posts\/56233","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.africa-press.net\/tchad\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.africa-press.net\/tchad\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.africa-press.net\/tchad\/wp-json\/wp\/v2\/users\/82"}],"replies":[{"embeddable":true,"href":"https:\/\/www.africa-press.net\/tchad\/wp-json\/wp\/v2\/comments?post=56233"}],"version-history":[{"count":0,"href":"https:\/\/www.africa-press.net\/tchad\/wp-json\/wp\/v2\/posts\/56233\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.africa-press.net\/tchad\/wp-json\/wp\/v2\/media\/56232"}],"wp:attachment":[{"href":"https:\/\/www.africa-press.net\/tchad\/wp-json\/wp\/v2\/media?parent=56233"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.africa-press.net\/tchad\/wp-json\/wp\/v2\/categories?post=56233"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.africa-press.net\/tchad\/wp-json\/wp\/v2\/tags?post=56233"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}