{"id":22094,"date":"2021-03-02T16:30:34","date_gmt":"2021-03-02T15:30:34","guid":{"rendered":"https:\/\/www.laterredufutur.com\/accueil\/?p=22094"},"modified":"2021-03-02T16:30:34","modified_gmt":"2021-03-02T15:30:34","slug":"le-gulf-stream-continue-son-ralentissement","status":"publish","type":"post","link":"https:\/\/www.laterredufutur.com\/accueil\/le-gulf-stream-continue-son-ralentissement\/","title":{"rendered":"Le Gulf Stream continue son ralentissement"},"content":{"rendered":"<div class=\"1665f18d14f35dd9e7566e1a8ac9a3e9\" data-index=\"1\" style=\"float: none; margin:10px 0 10px 0; text-align:center;\">\n<script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js\"><\/script>\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:block; text-align:center;\"\r\n     data-ad-layout=\"in-article\"\r\n     data-ad-format=\"fluid\"\r\n     data-ad-client=\"ca-pub-2860849627502538\"\r\n     data-ad-slot=\"3019501113\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script>\n<\/div>\n<p>Selon une \u00e9tude parue dans la revue Nature G\u00e9oscience fin f\u00e9vrier, le courant oc\u00e9anique est sujet \u00e0 un ralentissement in\u00e9dit depuis un mill\u00e9naire. Et on devrait plut\u00f4t s\u2019en inqui\u00e9ter\u2026<\/p>\n<p>Alarmant : c\u2019est le mot ad\u00e9quat, pour r\u00e9sumer et qualifier l\u2019\u00e9tude men\u00e9e par le Groupe d\u2019experts intergouvernemental sur l\u2019\u00e9volution du climat (GIEC). Elle concerne la situation de l\u2019Atlantic meridional overturning circulation (AMOC) ou \u00ab circulation m\u00e9ridienne de retournement Atlantique \u00bb en fran\u00e7ais.<\/p>\n<p>L\u2019AMOC, c\u2019est aussi le nom attribu\u00e9 au fameux Gulf Stream. Pr\u00e9sent dans l\u2019Atlantique d\u2019est en ouest, c\u2019est une sorte de \u00ab tapis roulant g\u00e9ant \u00bb selon Stefan Rahmstorf, l\u2019un des auteurs de l\u2019\u00e9tude. D\u2019une part, il peut transporter \u00ab l\u2019eau chaude de surface de l\u2019\u00e9quateur vers le nord\u00ab . De l\u2019autre \u00ab renvoyer des eaux froides en profondeur vers le sud\u00ab . Le Gulf Stream \u00ab d\u00e9place pr\u00e8s de 20 millions de m\u00e8tres cubes d\u2019eau par seconde, soit pr\u00e8s de 100 fois le d\u00e9bit du fleuve Amazone\u00ab , explique Stefan Rahmstorf. Mais le Gulf Stream est au coeur d\u2019un ph\u00e9nom\u00e8ne anormal qui ne date pas d\u2019hier, et qui s\u2019aggrave.<\/p><div class=\"1665f18d14f35dd9e7566e1a8ac9a3e9\" data-index=\"2\" style=\"float: none; margin:10px 0 10px 0; text-align:center;\">\n<script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js\"><\/script>\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:block; text-align:center;\"\r\n     data-ad-layout=\"in-article\"\r\n     data-ad-format=\"fluid\"\r\n     data-ad-client=\"ca-pub-2860849627502538\"\r\n     data-ad-slot=\"3019501113\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script>\n<\/div>\n\n<p>Un affaiblissement inattendu<br \/>\nCe ph\u00e9nom\u00e8ne est un affaiblissement du syst\u00e8me de circulation oc\u00e9anique des courants marins du bassin atlantique, que vient d\u2019\u00e9tudier une \u00e9quipe de chercheurs. Pour faire simple, les r\u00e9sultats publi\u00e9s en fran\u00e7ais ici montrent que depuis deux d\u00e9cennies, l\u2019AMOC a \u00e9t\u00e9 confront\u00e9e \u00e0 deux phases de ralentissement.<\/p>\n<p>La premi\u00e8re vers 1850 et la seconde dans la deuxi\u00e8me moiti\u00e9 du 20\u00e8me si\u00e8cle. Malgr\u00e9 des signes avant-coureurs, les cons\u00e9quences sont maintenant pr\u00e9sentes et il y en a des tas : plong\u00e9e des eaux de plus en plus difficile, \u00e9l\u00e9vation accrue du niveau de la mer, fonte des glaces du Groenland et de l\u2019Arctique ou encore risque de vagues de chaleur intense en Europe. Le \u00ab Vieux continent \u00bb est d\u2019autant plus concern\u00e9 que les autres, car la perte de vitesse du Gulf Stream pourrait causer l\u2019apparition de temp\u00eates, notamment en Irlande et au Royaume-Uni.<\/p>\n<p>extrait et source : <a href=\"https:\/\/www.neonmag.fr\/le-gulf-stream-continue-de-ralentir-et-cest-une-tres-mauvaise-nouvelle-572243.html\" rel=\"noopener\" target=\"_blank\">https:\/\/www.neonmag.fr\/<\/a><\/p>\n<p class=\"bawpvc-ajax-counter\" data-id=\"22094\">(979)<\/p>\n<!--CusAds0-->\n<div style=\"font-size: 0px; height: 0px; line-height: 0px; margin: 0; padding: 0; clear: both;\"><\/div>","protected":false},"excerpt":{"rendered":"<p>Selon une \u00e9tude parue dans la revue Nature G\u00e9oscience fin f\u00e9vrier, le courant oc\u00e9anique est sujet \u00e0 un ralentissement in\u00e9dit&#8230;<\/p>\n","protected":false},"author":1,"featured_media":20013,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"ngg_post_thumbnail":0,"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"Le #Gulf Stream continue son ralentissement @laterredufutur Terra Projects","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[23],"tags":[337,396,721,718],"class_list":["post-22094","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-circulation-oceanique","tag-courant-marin","tag-gulf-stream","tag-ocean-atlantique","tag-ralentissement","wpcat-23-id"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/10\/gulf-stream.jpg?fit=930%2C558&ssl=1","jetpack_shortlink":"https:\/\/wp.me\/p631RN-5Km","jetpack-related-posts":[{"id":27772,"url":"https:\/\/www.laterredufutur.com\/accueil\/comment-un-changement-du-gulf-stream-pourrait-signaler-leffondrement-dun-systeme-de-courant-oceanique-majeur\/","url_meta":{"origin":22094,"position":0},"title":"Comment un changement du Gulf Stream pourrait signaler l&rsquo;effondrement d&rsquo;un syst\u00e8me de courant oc\u00e9anique majeur","author":"Admin","date":"13 mars 2026","format":false,"excerpt":"Les variations du Gulf Stream, un puissant courant oc\u00e9anique de l'Atlantique, pourraient constituer un signal d'alarme pr\u00e9coce annon\u00e7ant l'effondrement imminent de la circulation m\u00e9ridienne de retournement atlantique (AMOC). L'AMOC est un vaste syst\u00e8me de courants oc\u00e9aniques qui agit comme un tapis roulant, transportant la chaleur des tropiques vers l'Atlantique Nord.\u2026","rel":"","context":"Dans &quot;Courants Marins&quot;","block_context":{"text":"Courants Marins","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/circulation-oceanique\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/02\/gulfstream.jpg?fit=1200%2C747&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/02\/gulfstream.jpg?fit=1200%2C747&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/02\/gulfstream.jpg?fit=1200%2C747&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/02\/gulfstream.jpg?fit=1200%2C747&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/02\/gulfstream.jpg?fit=1200%2C747&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":19729,"url":"https:\/\/www.laterredufutur.com\/accueil\/et-si-locean-indien-compensait-la-faiblesse-du-gulf-stream\/","url_meta":{"origin":22094,"position":1},"title":"Et si l&rsquo;oc\u00e9an indien compensait la faiblesse du Gulf Stream ?","author":"Admin","date":"23 octobre 2019","format":false,"excerpt":"Depuis plusieurs d\u00e9cennies, les scientifiques s\u2019attendent \u00e0 ce que la fonte des glaces de l\u2019Arctique perturbe significativement la circulation oc\u00e9anique dans le nord-atlantique. Un ph\u00e9nom\u00e8ne qui commencerait \u00e0 \u00eatre visible et qui devrait s\u2019accentuer \u00e0 l\u2019avenir avec la poursuite du r\u00e9chauffement global. \u00c0 moins que l\u2019oc\u00e9an Indien n\u2019en d\u00e9cide autrement\u2026\u2026","rel":"","context":"Dans &quot;Courants Marins&quot;","block_context":{"text":"Courants Marins","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/circulation-oceanique\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/04\/gulf-stream-avril-2015.jpg?fit=900%2C472&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/04\/gulf-stream-avril-2015.jpg?fit=900%2C472&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/04\/gulf-stream-avril-2015.jpg?fit=900%2C472&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/04\/gulf-stream-avril-2015.jpg?fit=900%2C472&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":17775,"url":"https:\/\/www.laterredufutur.com\/accueil\/dans-latlantique-nord-lequilibre-de-la-circulation-oceanique-atlantique-amoc-est-altere\/","url_meta":{"origin":22094,"position":2},"title":"Dans l\u2019Atlantique Nord, l\u2019\u00e9quilibre de la circulation oc\u00e9anique Atlantique (Amoc) est alt\u00e9r\u00e9","author":"Admin","date":"15 janvier 2019","format":false,"excerpt":"Approcherait-on du sc\u00e9nario catastrophe du film le Jour d\u2019apr\u00e8s, sorti en 2004 ? La modification des courants marins qui influencent la m\u00e9t\u00e9o en Europe comme en Am\u00e9rique du Nord est un effet redout\u00e9 du bouleversement climatique en cours. Un point de bascule majeur, c\u2019est-\u00e0-dire l\u2019un de ces changements abrupts et\u2026","rel":"","context":"Dans &quot;Courants Marins&quot;","block_context":{"text":"Courants Marins","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/circulation-oceanique\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/01\/atlantique-nord-ocean.jpg?fit=1057%2C694&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/01\/atlantique-nord-ocean.jpg?fit=1057%2C694&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/01\/atlantique-nord-ocean.jpg?fit=1057%2C694&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/01\/atlantique-nord-ocean.jpg?fit=1057%2C694&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/01\/atlantique-nord-ocean.jpg?fit=1057%2C694&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":23894,"url":"https:\/\/www.laterredufutur.com\/accueil\/dossier-de-nouvelles-donnees-montrent-que-le-gulf-stream-continue-de-ralentir-leau-douce-a-cree-un-desequilibre-et-le-rapproche-dun-point-deffondrement\/","url_meta":{"origin":22094,"position":3},"title":"Dossier : De nouvelles donn\u00e9es montrent que le Gulf Stream continue de ralentir, l&rsquo;eau douce a cr\u00e9\u00e9 un d\u00e9s\u00e9quilibre et le rapproche d&rsquo;un point d&rsquo;effondrement","author":"Admin","date":"6 avril 2022","format":false,"excerpt":"Le Gulf Stream s'est consid\u00e9rablement affaibli au cours des derni\u00e8res d\u00e9cennies, comme le r\u00e9v\u00e8lent les derni\u00e8res donn\u00e9es et de nouvelles \u00e9tudes. Le temps aux \u00c9tats-Unis et en Europe d\u00e9pend fortement de ce courant oc\u00e9anique, il est donc important de comprendre les changements en cours et ce qu'ils signifient pour notre\u2026","rel":"","context":"Dans &quot;Courants Marins&quot;","block_context":{"text":"Courants Marins","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/circulation-oceanique\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2022\/04\/hemisphere-nord-ocean-salinite-concentration-amoc-gulf-stream.png?fit=1200%2C862&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2022\/04\/hemisphere-nord-ocean-salinite-concentration-amoc-gulf-stream.png?fit=1200%2C862&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2022\/04\/hemisphere-nord-ocean-salinite-concentration-amoc-gulf-stream.png?fit=1200%2C862&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2022\/04\/hemisphere-nord-ocean-salinite-concentration-amoc-gulf-stream.png?fit=1200%2C862&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2022\/04\/hemisphere-nord-ocean-salinite-concentration-amoc-gulf-stream.png?fit=1200%2C862&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":4660,"url":"https:\/\/www.laterredufutur.com\/accueil\/le-petit-age-glaciaire-serait-lie-au-ralentissement-du-gulf-stream\/","url_meta":{"origin":22094,"position":4},"title":"Le petit \u00e2ge glaciaire serait li\u00e9 au ralentissement du Gulf Stream","author":"Admin","date":"31 octobre 2008","format":false,"excerpt":"C\u2019est un sc\u00e9nario que certains craignent de voir se r\u00e9aliser avec le r\u00e9chauffement de la plan\u00e8te et la fonte des glaces arctiques : un ralentissement du Gulf Stream dans l\u2019Atlantique et un climat moins temp\u00e9r\u00e9 en Europe. Selon les travaux de l\u2019\u00e9quipe de David Lund, c\u2019est ce qui s\u2019est produit\u2026","rel":"","context":"Dans &quot;Courants Marins&quot;","block_context":{"text":"Courants Marins","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/circulation-oceanique\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/04\/gulf-stream1.jpg?fit=300%2C300&ssl=1&resize=350%2C200","width":350,"height":200},"classes":[]},{"id":13600,"url":"https:\/\/www.laterredufutur.com\/accueil\/lhemisphere-sud-accuse-de-ralentir-la-circulation-de-latlantique\/","url_meta":{"origin":22094,"position":5},"title":"L\u2019h\u00e9misph\u00e8re sud accus\u00e9 de ralentir la circulation de l\u2019Atlantique","author":"Admin","date":"12 octobre 2016","format":false,"excerpt":"En 2008 nous avions vu\u00a0l'influence des quaranti\u00e8mes rugissants sur le courant du Gulf Stream ! La circulation de l\u2019oc\u00e9an atlantique apporte la chaleur des Tropiques vers le nord et permet \u00e0 l\u2019Europe de jouir d\u2019un climat plut\u00f4t cl\u00e9ment. Un ralentissement a \u00e9t\u00e9 observ\u00e9 ces derni\u00e8res ann\u00e9es, faisant craindre \u00e0 l\u2019avenir\u2026","rel":"","context":"Dans &quot;Courants Marins&quot;","block_context":{"text":"Courants Marins","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/circulation-oceanique\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2016\/10\/courants-marins-atlantique.jpg?fit=717%2C583&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2016\/10\/courants-marins-atlantique.jpg?fit=717%2C583&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2016\/10\/courants-marins-atlantique.jpg?fit=717%2C583&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2016\/10\/courants-marins-atlantique.jpg?fit=717%2C583&ssl=1&resize=700%2C400 2x"},"classes":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/22094","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/comments?post=22094"}],"version-history":[{"count":1,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/22094\/revisions"}],"predecessor-version":[{"id":22095,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/22094\/revisions\/22095"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/media\/20013"}],"wp:attachment":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/media?parent=22094"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/categories?post=22094"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/tags?post=22094"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}