{"id":16187,"date":"2023-01-27T13:12:25","date_gmt":"2023-01-27T12:12:25","guid":{"rendered":"https:\/\/www.cerege.fr\/?page_id=16187"},"modified":"2025-04-01T12:14:40","modified_gmt":"2025-04-01T10:14:40","slug":"deglaciation-in-the-great-caucasus","status":"publish","type":"page","link":"https:\/\/www.cerege.fr\/en\/sciences\/climat\/projets-climat\/deglaciation-dans-le-grand-caucase\/","title":{"rendered":"Deglaciation in the Greater Caucasus"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"16187\" class=\"elementor elementor-16187\" data-elementor-post-type=\"page\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-242b4ba4 elementor-section-full_width elementor-section-height-min-height elementor-section-height-default elementor-section-items-middle\" data-id=\"242b4ba4\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-697f8bf9\" data-id=\"697f8bf9\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-4c4b5bc elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"4c4b5bc\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-63d19cc0\" data-id=\"63d19cc0\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-59701e20 elementor-widget elementor-widget-shortcode\" data-id=\"59701e20\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"shortcode.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-shortcode\"><nav aria-label=\"breadcrumbs\">\n            <div class=\"breadcrumb-container theme1\">\n                <ol>\n                                    <\/ol>\n            <\/div>\n        <\/nav>    <script type=\"application\/ld+json\">\n        {\n            \"@context\": \"http:\/\/schema.org\",\n            \"@type\": \"BreadcrumbList\",\n            \"itemListElement\": [\n                            ]\n        }\n    <\/script>\n   \n    <script>\n            <\/script>\n<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-3c7780d8 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"3c7780d8\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-wide\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-8ff99bd\" data-id=\"8ff99bd\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-1e7e5ae8 elementor-widget elementor-widget-text-editor\" data-id=\"1e7e5ae8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Les glaciers du Grand Caucase constituent une ressource \u00e9conomique et hydrique vitale pour les populations autochtones. Ces glaciers sont actuellement en d\u00e9clin mais il est encore difficile de quantifier l&#8217;impact des activit\u00e9s anthropiques sur cette tendance.<\/p><p>L&#8217;un des probl\u00e8mes majeurs de cette quantification est li\u00e9 \u00e0 notre faible connaissance des effets des for\u00e7ages naturels sur l&#8217;\u00e9volution des glaciers.<\/p><p>L&#8217;objectif principal de ce projet est de se concentrer sur l&#8217;une des composantes environnementales majeures de cette r\u00e9gion : les glaciers.<\/p><p>Le but sp\u00e9cifique de ce projet est de documenter l&#8217;\u00e9volution des glaciers du Grand Caucase depuis au moins 21 000 ans et d&#8217;analyser les effets des for\u00e7ages naturels sur leur \u00e9volution.<\/p><p>Ce projet est bas\u00e9 sur diff\u00e9rentes m\u00e9thodes (g\u00e9omorphologie glaciaire, reconstructions pal\u00e9oclimatiques \u00e0 partir de donn\u00e9es de substitution et mod\u00e9lisation des glaciers) qui justifient le consortium propos\u00e9.<\/p><p>Pour atteindre ces objectifs, notre projet est organis\u00e9 en diff\u00e9rentes t\u00e2ches.<\/p><p>. Quantifier l&#8217;\u00e9volution actuelle du bilan de masse des glaciers par t\u00e9l\u00e9d\u00e9tection et une approche statistique qui prend en compte les composantes temporelles et spatiales.<br \/><br \/><\/p><p>. Nous allons ensuite documenter l&#8217;\u00e9volution des glaciers depuis au moins 21 000 ans en datant les caract\u00e9ristiques des glaciers par datation cosmog\u00e9nique (10Be).<\/p><p>. Nous reconstituerons ensuite les conditions climatiques d&#8217;altitude \u00e0 partir d&#8217;une analyse multi proxies et d&#8217;une mod\u00e9lisation glaciologique.<\/p><p>. Une analyse des for\u00e7ages naturels sera ensuite men\u00e9e en testant notamment le r\u00f4le de l&#8217;insolation, de l&#8217;activit\u00e9 volcanique, des courants solaires et oc\u00e9aniques sur l&#8217;\u00e9volution des glaciers du Grand Caucase. Les simulations num\u00e9riques MCG d\u00e9j\u00e0 disponibles (PMIP3) seront utilis\u00e9es pour comprendre les effets de l&#8217;influence respective de ces for\u00e7ages sur le climat caucasien (principalement la temp\u00e9rature des pr\u00e9cipitations) au cours du temps.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-62a68b50\" data-id=\"62a68b50\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-5ea94f53 elementor-widget elementor-widget-text-editor\" data-id=\"5ea94f53\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h2><span style=\"font-weight: normal;\">2020-2024 : IRP CNRS D\u00e9glaciation dans le Grand Caucase<br \/><\/span><\/h2><p>Responsable CEREGE : <br \/><strong><a href=\"https:\/\/www.cerege.fr\/fr\/cerege\/vincent-jomelli\/\">Vincent Jomelli<\/a><br \/><br \/><\/strong><em>Documenter l&#8217;\u00e9volution des glaciers au cours des 21 000 derni\u00e8res ann\u00e9es dans le Grand Caucase et identifier les principaux for\u00e7ages <\/em><\/p><p><strong>Collaborateurs \u00e9trangers:<\/strong> G\u00e9orgie et Russie<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1cb9ef8f elementor-widget elementor-widget-image\" data-id=\"1cb9ef8f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"800\" height=\"500\" src=\"https:\/\/www.cerege.fr\/wp-content\/uploads\/2023\/01\/Deglaciation_IRP_CNRS_V.-Jomelli2.jpg\" class=\"attachment-large size-large wp-image-16183\" alt=\"\" srcset=\"https:\/\/www.cerege.fr\/wp-content\/uploads\/2023\/01\/Deglaciation_IRP_CNRS_V.-Jomelli2.jpg 949w, https:\/\/www.cerege.fr\/wp-content\/uploads\/2023\/01\/Deglaciation_IRP_CNRS_V.-Jomelli2-300x187.jpg 300w, https:\/\/www.cerege.fr\/wp-content\/uploads\/2023\/01\/Deglaciation_IRP_CNRS_V.-Jomelli2-768x480.jpg 768w, https:\/\/www.cerege.fr\/wp-content\/uploads\/2023\/01\/Deglaciation_IRP_CNRS_V.-Jomelli2-18x12.jpg 18w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-57da840 elementor-widget elementor-widget-image\" data-id=\"57da840\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"800\" height=\"500\" src=\"https:\/\/www.cerege.fr\/wp-content\/uploads\/2023\/01\/Deglaciation_IRP_CNRS_V.-Jomelli.jpg\" class=\"attachment-large size-large wp-image-16199\" alt=\"\" srcset=\"https:\/\/www.cerege.fr\/wp-content\/uploads\/2023\/01\/Deglaciation_IRP_CNRS_V.-Jomelli.jpg 949w, https:\/\/www.cerege.fr\/wp-content\/uploads\/2023\/01\/Deglaciation_IRP_CNRS_V.-Jomelli-300x187.jpg 300w, https:\/\/www.cerege.fr\/wp-content\/uploads\/2023\/01\/Deglaciation_IRP_CNRS_V.-Jomelli-768x480.jpg 768w, https:\/\/www.cerege.fr\/wp-content\/uploads\/2023\/01\/Deglaciation_IRP_CNRS_V.-Jomelli-18x12.jpg 18w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<div class=\"elementor-element elementor-element-65b7fc4 elementor-widget elementor-widget-spacer\" data-id=\"65b7fc4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3733b4 elementor-widget elementor-widget-spacer\" data-id=\"3733b4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Les glaciers du Grand Caucase constituent une ressource \u00e9conomique et hydrique vitale pour les populations autochtones. Ces glaciers sont actuellement en d\u00e9clin mais il est encore difficile de quantifier l&#8217;impact [&hellip;]<\/p>\n","protected":false},"author":551,"featured_media":16058,"parent":4955,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-16187","page","type-page","status-publish","has-post-thumbnail","hentry"],"acf":[],"publishpress_future_action":{"enabled":false,"date":"2026-05-16 07:54:10","action":"change-status","newStatus":"draft","terms":[],"taxonomy":"","extraData":[]},"publishpress_future_workflow_manual_trigger":{"enabledWorkflows":[]},"_links":{"self":[{"href":"https:\/\/www.cerege.fr\/en\/wp-json\/wp\/v2\/pages\/16187","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.cerege.fr\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.cerege.fr\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.cerege.fr\/en\/wp-json\/wp\/v2\/users\/551"}],"replies":[{"embeddable":true,"href":"https:\/\/www.cerege.fr\/en\/wp-json\/wp\/v2\/comments?post=16187"}],"version-history":[{"count":5,"href":"https:\/\/www.cerege.fr\/en\/wp-json\/wp\/v2\/pages\/16187\/revisions"}],"predecessor-version":[{"id":27276,"href":"https:\/\/www.cerege.fr\/en\/wp-json\/wp\/v2\/pages\/16187\/revisions\/27276"}],"up":[{"embeddable":true,"href":"https:\/\/www.cerege.fr\/en\/wp-json\/wp\/v2\/pages\/4955"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.cerege.fr\/en\/wp-json\/wp\/v2\/media\/16058"}],"wp:attachment":[{"href":"https:\/\/www.cerege.fr\/en\/wp-json\/wp\/v2\/media?parent=16187"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}