{"id":7090,"date":"2022-10-27T16:25:37","date_gmt":"2022-10-27T14:25:37","guid":{"rendered":"https:\/\/www.cerege.fr\/?page_id=7090"},"modified":"2025-04-01T12:27:17","modified_gmt":"2025-04-01T10:27:17","slug":"anr-marcara","status":"publish","type":"page","link":"https:\/\/www.cerege.fr\/en\/sciences\/climat\/projets-climat\/anr-marcara\/","title":{"rendered":"ANR MARCARA"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"7090\" class=\"elementor elementor-7090\" data-elementor-post-type=\"page\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-61bce835 elementor-section-full_width elementor-section-height-min-height elementor-section-height-default elementor-section-items-middle\" data-id=\"61bce835\" 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-4632bd41\" data-id=\"4632bd41\" 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-32795d52 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"32795d52\" 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-5256e1af\" data-id=\"5256e1af\" 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-7648cf79 elementor-widget elementor-widget-shortcode\" data-id=\"7648cf79\" 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-2ec9010d elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"2ec9010d\" 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-40e1e09e\" data-id=\"40e1e09e\" 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-64697f14 elementor-widget elementor-widget-text-editor\" data-id=\"64697f14\" 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>Projet de recherche collaborative internationale (ANR PRCI) avec l\u2019Institut Alfred Wegener de Bremerhaven (Centre Helmholtz) au sujet de la variabilit\u00e9 de l&#8217;\u00e2ge radiocarbone du r\u00e9servoir marin et ses implications en pal\u00e9ooc\u00e9anographie, pal\u00e9oclimatologie et g\u00e9ochronologie.<\/p><p>L&#8217;\u00e2ge 14C du r\u00e9servoir marin de surface (ARM) est un traceur des \u00e9changes gazeux air-mer et du m\u00e9lange du carbone dans l\u2019oc\u00e9an. Ces processus sont li\u00e9s aux param\u00e8tres du climat, de l&#8217;oc\u00e9an et du cycle du carbone qui ont vari\u00e9 au cours des 50 000 derni\u00e8res ann\u00e9es.<\/p><p>Le projet MARCARA se concentre sur l\u2019observation et la mod\u00e9lisation num\u00e9rique de l&#8217;ARM pour des sites cl\u00e9s des principaux oc\u00e9ans. Nous mesurons des \u00e2ges 14C sur des micro-\u00e9chantillons gr\u00e2ce au spectrom\u00e8tre AixMICADAS \u00e9quip\u00e9 de sa source d&#8217;ions polyvalente (solide &amp; gaz). Cela nous permet de mieux quantifier l&#8217;ARM et d&#8217;\u00e9viter, ou de corriger, certains biais.<\/p><p>Nos partenaires allemands utilisent des mod\u00e8les num\u00e9riques fond\u00e9s sur une approche en maillage non structur\u00e9 \u00e0 haute r\u00e9solution pour zoomer sur les r\u00e9gions d&#8217;int\u00e9r\u00eat, avec assimilation des donn\u00e9es 14C marines et atmosph\u00e9riques.<\/p><p>Le projet MARCARA est focalis\u00e9 sur la derni\u00e8re d\u00e9glaciation et les changements climatiques brusques tels que les \u00e9v\u00e9nements de Heinrich et de Dansgaard-Oeschger, dont le r\u00f4le sur le cycle du carbone est encore mal compris.<\/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-a3dfde1\" data-id=\"a3dfde1\" 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-64fa4e20 elementor-widget elementor-widget-text-editor\" data-id=\"64fa4e20\" 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;\">2021-2025 : ANR MARCARA <br \/><\/span><\/h2><p><em>MArine radioCArbon Reservoir Age variability and its implications in paleoceanography, paleoclimatology and geochronology<\/em><\/p><p>\u00a0<\/p><p><strong>Au CEREGE:<br \/>Responsable<\/strong>: <a href=\"https:\/\/www.cerege.fr\/fr\/author\/edouard-bard\/\" target=\"_blank\" rel=\"noopener\">Edouard Bard<\/a><br \/><strong>Participants<\/strong>: <a href=\"https:\/\/www.cerege.fr\/fr\/cerege\/yoann-fagault\/\">Yoann Fagault<\/a>, <a href=\"https:\/\/www.cerege.fr\/fr\/cerege\/thibaut-tuna\/\">Thibaut Tuna<\/a>, <a href=\"https:\/\/www.cerege.fr\/fr\/cerege\/frauke-rostek\/\">Frauke Rostek<\/a><\/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-7057dbb elementor-widget elementor-widget-image\" data-id=\"7057dbb\" 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\/2022\/11\/MARCARA-Fig1-1024x640.png\" class=\"attachment-large size-large wp-image-7886\" alt=\"\" srcset=\"https:\/\/www.cerege.fr\/wp-content\/uploads\/2022\/11\/MARCARA-Fig1-1024x640.png 1024w, https:\/\/www.cerege.fr\/wp-content\/uploads\/2022\/11\/MARCARA-Fig1-300x188.png 300w, https:\/\/www.cerege.fr\/wp-content\/uploads\/2022\/11\/MARCARA-Fig1-768x480.png 768w, https:\/\/www.cerege.fr\/wp-content\/uploads\/2022\/11\/MARCARA-Fig1-1536x960.png 1536w, https:\/\/www.cerege.fr\/wp-content\/uploads\/2022\/11\/MARCARA-Fig1.png 2048w, https:\/\/www.cerege.fr\/wp-content\/uploads\/2022\/11\/MARCARA-Fig1-18x12.png 18w, https:\/\/www.cerege.fr\/wp-content\/uploads\/2022\/11\/MARCARA-Fig1-1320x825.png 1320w\" 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-422976d1 elementor-widget elementor-widget-image\" data-id=\"422976d1\" 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\/2022\/11\/MARCARA-Fig2-1024x640.png\" class=\"attachment-large size-large wp-image-7887\" alt=\"\" srcset=\"https:\/\/www.cerege.fr\/wp-content\/uploads\/2022\/11\/MARCARA-Fig2-1024x640.png 1024w, https:\/\/www.cerege.fr\/wp-content\/uploads\/2022\/11\/MARCARA-Fig2-300x187.png 300w, https:\/\/www.cerege.fr\/wp-content\/uploads\/2022\/11\/MARCARA-Fig2-768x480.png 768w, https:\/\/www.cerege.fr\/wp-content\/uploads\/2022\/11\/MARCARA-Fig2-1536x960.png 1536w, https:\/\/www.cerege.fr\/wp-content\/uploads\/2022\/11\/MARCARA-Fig2.png 2048w, https:\/\/www.cerege.fr\/wp-content\/uploads\/2022\/11\/MARCARA-Fig2-18x12.png 18w, https:\/\/www.cerege.fr\/wp-content\/uploads\/2022\/11\/MARCARA-Fig2-1320x825.png 1320w\" 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-63aa1b33 elementor-widget elementor-widget-spacer\" data-id=\"63aa1b33\" 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-51dcf917 elementor-widget elementor-widget-spacer\" data-id=\"51dcf917\" 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>Projet de recherche collaborative internationale (ANR PRCI) avec l\u2019Institut Alfred Wegener de Bremerhaven (Centre Helmholtz) au sujet de la variabilit\u00e9 de l&#8217;\u00e2ge radiocarbone du r\u00e9servoir marin et ses implications en [&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-7090","page","type-page","status-publish","has-post-thumbnail","hentry"],"acf":[],"publishpress_future_action":{"enabled":false,"date":"2026-05-07 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