{"id":16446,"date":"2024-10-23T00:00:00","date_gmt":"2024-10-23T00:00:00","guid":{"rendered":"https:\/\/www.mercator-ocean.eu\/bulletin\/bulletin-de-temperature-de-locean-septembre-2024\/"},"modified":"2025-05-26T12:44:08","modified_gmt":"2025-05-26T12:44:08","slug":"bulletin-de-temperature-de-locean-septembre-2024","status":"publish","type":"bulletin","link":"https:\/\/www.mercator-ocean.eu\/fr\/bulletin\/bulletin-de-temperature-de-locean-septembre-2024\/","title":{"rendered":"Bulletin de temp\u00e9rature de l&rsquo;oc\u00e9an &#8211; septembre 2024"},"content":{"rendered":"<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div><div class=\"wp-block-columns has-text-color is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\" style=\"color:#000000\"><div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\"><div class=\"wp-block-columns has-content-bg-alt-background-color has-text-color has-background is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\" style=\"color:#070707\"><div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:2%\"><\/div><div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:96%\"><div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div><h2 class=\"has-text-align-center wp-block-heading\">Un mois de septembre chaud <\/h2><div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\"><div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\"><figure class=\"wp-block-image size-large is-resized\"><a href=\"https:\/\/www.mercator-ocean.eu\/wp-content\/uploads\/2024\/10\/Figure_SST_multidata_north_atlantic_2024-10-22_GLO12_ESA-1-1.png\"><img fetchpriority=\"high\" decoding=\"async\" src=\"https:\/\/www.mercator-ocean.eu\/wp-content\/uploads\/2024\/10\/Figure_SST_multidata_north_atlantic_2024-10-22_GLO12_ESA-1-1-1000x700.png\" alt=\"\" class=\"wp-image-36163\" width=\"322\" height=\"225\"\/><\/a><\/figure><\/div><div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\"><figure class=\"wp-block-image size-large is-resized\"><a href=\"https:\/\/www.mercator-ocean.eu\/wp-content\/uploads\/2024\/10\/Figure_SST_multidata_med_2024-10-22_GLO12_ESA-2.png\"><img decoding=\"async\" src=\"https:\/\/www.mercator-ocean.eu\/wp-content\/uploads\/2024\/10\/Figure_SST_multidata_med_2024-10-22_GLO12_ESA-2-1000x700.png\" alt=\"\" class=\"wp-image-36165\" width=\"322\" height=\"225\"\/><\/a><\/figure><p><\/p><\/div><div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\"><figure class=\"wp-block-image size-large is-resized\"><a href=\"https:\/\/www.mercator-ocean.eu\/wp-content\/uploads\/2024\/10\/Figure_SST_multidata_global_2024-10-22_GLO12_ESA-1.png\"><img decoding=\"async\" src=\"https:\/\/www.mercator-ocean.eu\/wp-content\/uploads\/2024\/10\/Figure_SST_multidata_global_2024-10-22_GLO12_ESA-1-1000x700.png\" alt=\"\" class=\"wp-image-36167\" width=\"334\" height=\"233\"\/><\/a><\/figure><\/div><\/div><p class=\"has-text-align-center\"><em>Moyenne des temp\u00e9ratures de surface de la mer pour l&rsquo;oc\u00e9an Atlantique Nord (\u00e0 gauche), la mer M\u00e9diterran\u00e9e (au centre) et l&rsquo;oc\u00e9an mondial entre 1991 et 2020 selon l&rsquo;initiative sur le changement climatique de l&rsquo;ESA (en vert), et entre 2021 et 2024 (en rouge) + pr\u00e9visions (en noir) selon l&rsquo;analyse MOi GLO12.<\/em><\/p><div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\"><div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\"><div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\"><div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\"><div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\"><ul class=\"wp-block-list\"><li>Septembre 2024 a \u00e9t\u00e9 un mois chaud dans l&rsquo;ensemble, avec des records r\u00e9gionaux.<\/li><li>Au niveau mondial, <strong>septembre 2024 a \u00e9t\u00e9 le deuxi\u00e8me mois le plus chaud jamais enregistr\u00e9<\/strong> (apr\u00e8s ao\u00fbt 2023) avec une valeur moyenne mensuelle de&nbsp; 20,87\u00b0C. <\/li><li>C&rsquo;est \u00e9galement le cas pour le bassin de l&rsquo;Atlantique Nord, avec une temp\u00e9rature moyenne de 24,3 \u00b0C &#8211; &nbsp;<strong>le<sup>deuxi\u00e8me<\/sup> mois le plus chaud apr\u00e8s septembre 2023.<\/strong><\/li><li>Pour la <strong>mer M\u00e9diterran\u00e9e, les temp\u00e9ratures ont atteint un niveau record <\/strong>avec une moyenne mensuelle de 26,42 \u00baC &#8211; plus \u00e9lev\u00e9e que le pr\u00e9c\u00e9dent record de 26,27 \u00baC \u00e9tabli en 2020 et 2022.&nbsp;<\/li><\/ul><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><div style=\"height:36px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div><\/div><div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:2%\"><\/div><\/div><\/div><\/div><div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\"><div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\"><div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\"><div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\"><div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\"><div class=\"wp-block-image\"><figure class=\"aligncenter size-large is-resized\"><a href=\"https:\/\/www.mercator-ocean.eu\/wp-content\/uploads\/2024\/10\/anom_sept_2024_glo12-1.png\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.mercator-ocean.eu\/wp-content\/uploads\/2024\/10\/anom_sept_2024_glo12-1-1024x588.png\" alt=\"\" class=\"wp-image-36173\" width=\"1148\" height=\"655\"\/><\/a><figcaption><em>&nbsp;Anomalies de temp\u00e9rature de surface de la mer pour septembre 2024. *<br\/><\/em><\/figcaption><\/figure><\/div><\/div><\/div><\/div><\/div><p><\/p><\/div><\/div><div class=\"wp-block-columns has-content-bg-alt-background-color has-text-color has-background is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\" style=\"color:#070707\"><div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:2%\"><\/div><div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:96%\"><div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div><div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\"><div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\"><div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\"><div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\"><h2 class=\"has-text-align-center wp-block-heading\">Vagues de chaleur marines en cours :<strong> <\/strong>30 septembre 2024<\/h2><p class=\"has-text-color\" style=\"color:#131313\">Les <strong>\u00e9pisodes de r\u00e9chauffement de longue dur\u00e9e<\/strong> <strong>peuvent induire un stress important sur les \u00e9cosyst\u00e8mes marins<\/strong>. Cette section pr\u00e9sente les vagues de chaleur marine en cours le 30 septembre 2024, ainsi que leur date de d\u00e9but.<\/p><ul class=\"has-text-color wp-block-list\" style=\"color:#000000\"><li>28.<strong>3 %<\/strong> de l&rsquo;oc\u00e9an mondial (entre 60\u00b0S et 60\u00b0N) ont \u00e9t\u00e9 affect\u00e9s par des vagues de chaleur marine le<sup>30<\/sup> septembre.<\/li><li>La majorit\u00e9 de ces ondes lumineuses se sont d\u00e9velopp\u00e9es r\u00e9cemment, <strong>18 %<\/strong> de l&rsquo;oc\u00e9an mondial (entre 60\u00b0S et 60\u00b0N) \u00e9tant touch\u00e9s par des ondes lumineuses datant de moins d&rsquo;un mois et <strong>3 %<\/strong> par des ondes datant d&rsquo;un \u00e0 deux mois.<\/li><\/ul><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><div style=\"height:43px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div><p><\/p><\/div><div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:2%\"><\/div><\/div><div class=\"wp-block-image\"><figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.mercator-ocean.eu\/wp-content\/uploads\/2024\/10\/Ongoing_mhw_202409-1-1024x683.jpg\" alt=\"\" class=\"wp-image-36177\" width=\"935\" height=\"636\"\/><figcaption><em>Vagues de chaleur marine en cours le 30 septembre 24. La couleur indique le mois d&rsquo;apparition de chaque vague de chaleur marine. Par exemple, les pixels oc\u00e9aniques en rouge correspondent \u00e0 des vagues de chaleur marine qui se sont d\u00e9velopp\u00e9es en septembre 2024 et datent de moins d&rsquo;un mois, en orange \u00e0 des vagues de chaleur marine datant de 1 \u00e0 2 mois, etc.<\/em>*<\/figcaption><\/figure><\/div><div style=\"height:53px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div><div class=\"wp-block-columns has-content-bg-alt-background-color has-text-color has-background is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\" style=\"color:#070707\"><div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:2%\"><\/div><div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:96%\"><div style=\"height:39px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div><div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\"><div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\"><div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\"><div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\"><h2 class=\"has-text-align-center wp-block-heading\">Surface totale expos\u00e9e aux vagues de chaleur marine (octobre 2023-septembre 2024)<\/h2><div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\"><div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\"><p>La <strong>surface occup\u00e9e par les vagues de chaleur marine<\/strong> est surveill\u00e9e quotidiennement. Ci-dessous figure, pour l&rsquo;ann\u00e9e \u00e9coul\u00e9e (depuis octobre 2023), la proportion de l&rsquo; <strong>oc\u00e9an mondial<\/strong> <strong>(entre 60\u00b0S et 60\u00b0N)<\/strong> <strong>expos\u00e9e \u00e0 des vagues de chaleur marine.<\/strong> En gris, l&rsquo;\u00e9volution des conditions de la vague de chaleur marine au cours du mois <strong>de septembre 2024<\/strong>.<\/p><p><\/p><div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\"><ul class=\"wp-block-list\"><li>La surface totale pour septembre 2024 (ligne noire) a poursuivi sa <strong>tendance \u00e0 la baisse, atteignant son niveau le plus bas \u00e0 la mi-septembre (25,5 %).<\/strong> <strong>\u00c0 la fin du mois de septembre, l&rsquo;\u00e9tendue a atteint 28,3 % de l&rsquo;oc\u00e9an mondial.<\/strong> <\/li><li>En 2023, l&rsquo;\u00e9tendue minimale occup\u00e9e par les eaux marines a \u00e9t\u00e9 atteinte plus t\u00f4t dans l&rsquo;ann\u00e9e (en juillet, ~27%), puis a progressivement augment\u00e9 pour atteindre 32-34% au cours du mois de septembre. Le pic a \u00e9t\u00e9 atteint au d\u00e9but du mois de janvier 2024 (42%).<\/li><\/ul><\/div><\/div><p><\/p><\/div><\/div><ul class=\"wp-block-list\"><li>La <strong>surface maximale des vagues de chaleur marine<\/strong> se produit en janvier et f\u00e9vrier, pendant la saison estivale dans l&rsquo;h\u00e9misph\u00e8re sud (p\u00e9riode de plus forte occurrence des vagues de chaleur marine), qui contient \u00e0 son tour une plus grande proportion d&rsquo;oc\u00e9an que son homologue septentrional.<\/li><li>La <strong>r\u00e9duction de la surface totale s&rsquo;explique par une baisse pr\u00e9dominante des vagues de chaleur marine fortes et s\u00e9v\u00e8res <\/strong>(en orange et rouge). En revanche, les cat\u00e9gories mod\u00e9r\u00e9es sont rest\u00e9es stables au cours du mois (en jaune).<\/li><\/ul><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><div style=\"height:56px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div><\/div><div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:2%\"><\/div><\/div><div class=\"wp-block-image\"><figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.mercator-ocean.eu\/wp-content\/uploads\/2024\/10\/surface_glo12_september_global.png\" alt=\"\" class=\"wp-image-36115\" width=\"1020\" height=\"595\"\/><figcaption><em>Surface occup\u00e9e par les vagues de chaleur marine pour les latitudes mondiales (60\u00b0S &amp; 60\u00b0N), entre octobre 2023 et septembre 2024. <\/em>*<\/figcaption><\/figure><\/div><div class=\"wp-block-columns has-content-bg-alt-background-color has-text-color has-background is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\" style=\"color:#070707\"><div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:2%\"><\/div><div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:96%\"><div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div><div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\"><div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\"><div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\"><div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\"><h3 class=\"has-text-align-center wp-block-heading\">Zone europ\u00e9enne<\/h3><p>Pour la r\u00e9gion oc\u00e9anique de l&rsquo;Europe, y compris la mer M\u00e9diterran\u00e9e et la c\u00f4te est de l&rsquo;Atlantique Nord<em>(voir l&rsquo;\u00e9tendue sur la carte des vagues de chaleur marine en cours ci-dessus<\/em>), la<sup>troisi\u00e8me<\/sup> p\u00e9riode de fortes vagues de chaleur marine de 2024, qui a commenc\u00e9 en juillet, a culmin\u00e9 en ao\u00fbt et est rest\u00e9e tr\u00e8s \u00e9lev\u00e9e au d\u00e9but du mois de septembre<strong>(29 %)<\/strong>, pour ensuite diminuer rapidement \u00e0 <strong>13,4 % <\/strong>de la zone d&rsquo;\u00e9tude \u00e0 la fin du mois.<\/p><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><div style=\"height:43px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div><\/div><div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:2%\"><\/div><\/div><div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img decoding=\"async\" src=\"https:\/\/www.mercator-ocean.eu\/wp-content\/uploads\/2024\/10\/surface_glo12_september_europe.png\" alt=\"\" class=\"wp-image-36122\"\/><figcaption>Surface occup\u00e9e par les vagues de chaleur marine (Europe 9324298,0 km2) entre octobre 2023 et septembre 2024.*<\/figcaption><\/figure><\/div><div style=\"height:72px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div><div class=\"wp-block-columns has-content-bg-alt-background-color has-text-color has-background is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\" style=\"color:#070707\"><div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:2%\"><\/div><div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:96%\"><div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div><div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\"><div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\"><div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\"><div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\"><h2 class=\"has-text-align-center wp-block-heading\">Nombre total de jours de canicule marine pour septembre 2024<\/h2><p class=\"has-text-align-center\">Surface de l&rsquo;oc\u00e9an&nbsp;en <strong>conditions de canicule marine&nbsp;depuis au moins 1 jour :&nbsp; <\/strong>20.54 %<\/p><p class=\"has-text-align-center\">Surface de l&rsquo;oc\u00e9an en <strong>conditions de canicule marine durant tout le mois :&nbsp;<\/strong>0.39<strong> <\/strong>%<\/p><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><div style=\"height:21px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div><\/div><div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:2%\"><\/div><\/div><div class=\"wp-block-image\"><figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.mercator-ocean.eu\/wp-content\/uploads\/2024\/10\/Duration_MHW_global_monthly_09_nocat1-2-1024x587.jpg\" alt=\"\" class=\"wp-image-36202\" width=\"1140\" height=\"653\"\/><figcaption>Nombre total de jours de canicule marine pour septembre 2024*<\/figcaption><\/figure><\/div><div style=\"height:68px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div><div class=\"wp-block-columns has-content-bg-alt-background-color has-text-color has-background is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\" style=\"color:#070707\"><div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:2%\"><\/div><div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:96%\"><div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div><h2 class=\"has-text-align-center wp-block-heading\">Septembre 2024 : un mois d&rsquo;extr\u00eames<\/h2><div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\"><div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\"><div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\"><div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\"><figure class=\"wp-block-image size-large is-resized\"><a href=\"https:\/\/www.mercator-ocean.eu\/wp-content\/uploads\/2024\/10\/bubblePlot_m09_l00_global.png\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.mercator-ocean.eu\/wp-content\/uploads\/2024\/10\/bubblePlot_m09_l00_global-527x700.png\" alt=\"\" class=\"wp-image-36192\" width=\"301\" height=\"402\"\/><\/a><\/figure><\/div><\/div><\/div><div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\"><figure class=\"wp-block-image size-large is-resized\"><a href=\"https:\/\/www.mercator-ocean.eu\/wp-content\/uploads\/2024\/10\/bubblePlot_m09_l00_north_atlantic-1.png\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.mercator-ocean.eu\/wp-content\/uploads\/2024\/10\/bubblePlot_m09_l00_north_atlantic-1-530x700.png\" alt=\"\" class=\"wp-image-36198\" width=\"301\" height=\"397\"\/><\/a><\/figure><\/div><div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\"><figure class=\"wp-block-image size-large is-resized\"><a href=\"https:\/\/www.mercator-ocean.eu\/wp-content\/uploads\/2024\/10\/bubblePlot_m09_l00_med-1.png\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.mercator-ocean.eu\/wp-content\/uploads\/2024\/10\/bubblePlot_m09_l00_med-1-590x700.png\" alt=\"\" class=\"wp-image-36200\" width=\"312\" height=\"370\"\/><\/a><\/figure><\/div><\/div><\/div><\/div><p class=\"has-text-align-center\"><em>Dur\u00e9e moyenne et intensit\u00e9 des vagues de chaleur marine pendant les mois de septembre entre 1993 et 2024 pour l&rsquo;oc\u00e9an mondial (\u00e0 gauche), l&rsquo;oc\u00e9an Atlantique Nord (au centre) et la mer M\u00e9diterran\u00e9e (\u00e0 droite). Les mesures par satellite ont \u00e9t\u00e9 obtenues pour la couche de surface de l&rsquo;oc\u00e9an de 0,49 m.<\/em><\/p><div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\"><div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\"><div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\"><div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\"><div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\"><ul class=\"wp-block-list\"><li>Les statistiques MHW (dur\u00e9e MHW, intensit\u00e9, surface occup\u00e9e et activit\u00e9) <strong>pour septembre 2024 sont compar\u00e9es aux mois de septembre des ann\u00e9es pr\u00e9c\u00e9dentes (depuis 1993).<\/strong><\/li><li>En lien avec des temp\u00e9ratures moyennes journali\u00e8res sans pr\u00e9c\u00e9dent durant la premi\u00e8re moiti\u00e9 de septembre en mer M\u00e9diterran\u00e9e,<strong> on observe un record d&rsquo;HMT en termes d&rsquo;intensit\u00e9, d&rsquo;activit\u00e9 et d&rsquo;\u00e9tendue pour septembre 2024<\/strong>, d\u00e9passant le record de septembre 2022 pour l&rsquo;intensit\u00e9 et l&rsquo;activit\u00e9, et celui de septembre 2018 pour l&rsquo;\u00e9tendue moyenne.<\/li><li><strong>Dans l&rsquo;Atlantique Nord uniquement, le mois de septembre 2023 a \u00e9t\u00e9 plus extr\u00eame que le mois de septembre 2024. Au niveau mondial, septembre 2024 est le<sup>4e<\/sup> mois de septembre le plus extr\u00eame.<\/strong><\/li><\/ul><p><\/p><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><div style=\"height:36px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div><\/div><div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:2%\"><\/div><\/div><div class=\"wp-block-columns are-vertically-aligned-center has-text-color is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\" style=\"color:#2c2c2c\"><div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:10%\"><\/div><div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:80%\"><h6 class=\"wp-block-heading\"><strong><em>A propos du bulletin<\/em><\/strong><\/h6><div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\"><p><em>Mercator Ocean International (MOi) publie chaque mois sur le site&nbsp;un bulletin de temp\u00e9rature de surface faisant \u00e9tat de la temp\u00e9rature moyenne et des conditions de canicule marine pour le mois \u00e9coul\u00e9. Il comprend&nbsp;<\/em><\/p><ul class=\"wp-block-list\"><li><em>Temp\u00e9ratures moyennes de l&rsquo;oc\u00e9an mondial, de l&rsquo;Atlantique Nord et de la mer M\u00e9diterran\u00e9e et anomalies.&nbsp;<\/em><\/li><li><em>pour les r\u00e9gions de l&rsquo;oc\u00e9an&nbsp;dans la situation des vagues de chaleur marine au moment o\u00f9 cet \u00e9v\u00e9nement a commenc\u00e9, &nbsp;<\/em><\/li><li><em>&nbsp;les s\u00e9ries temporelles montrant la surface totale occup\u00e9e par les vagues de chaleur marine au niveau mondial et pour la r\u00e9gion europ\u00e9enne, &nbsp;<\/em><\/li><li><em>et le nombre total de jours d&rsquo;exposition \u00e0 la vague de chaleur marine au cours du mois (y compris uniquement les cat\u00e9gories d&rsquo;intensit\u00e9 forte et sup\u00e9rieure).<\/em><\/li><\/ul><p><em>Les r\u00e9sultats sont obtenus \u00e0 l&rsquo;aide du syst\u00e8me d&rsquo;analyse globale Copernicus Marine Service.&nbsp;<\/em><\/p><p>*<em>Citation de l&rsquo;image : Union europ\u00e9enne, Copernicus Marine Service Data 2024 I \u00a9 Mercator Ocean&nbsp;<br\/>Toutes les images de cet article peuvent \u00eatre utilis\u00e9es librement et doivent \u00eatre cit\u00e9es avec les informations ci-dessus.<\/em><\/p><\/div><\/div><div style=\"height:15px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div><\/div><div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:10%\"><\/div><\/div><div class=\"wp-block-columns has-content-bg-alt-background-color has-background is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\"><div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:5%\"><\/div><div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:90%\"><h5 class=\"has-text-align-center wp-block-heading\"><strong>Contenu connexe<\/strong><\/h5><div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\"><div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\"><figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/www.mercator-ocean.eu\/wp-content\/uploads\/2024\/08\/Bulletin-4-min-815x700.png\" alt=\"\" class=\"wp-image-35539\"\/><\/figure><p>Pour en savoir plus sur notre <strong>bulletin d&rsquo;information sur la canicule marine <\/strong><em><a href=\"https:\/\/www.mercator-ocean.eu\/en\/category\/mhw-bulletin\/\">ici<\/a><\/em>.<\/p><\/div><div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\"><figure class=\"wp-block-image size-large is-style-default\"><a href=\"https:\/\/www.mercator-ocean.eu\/en\/category\/sea-ice-bulletin-en-2\/\"><img decoding=\"async\" src=\"https:\/\/www.mercator-ocean.eu\/wp-content\/uploads\/2024\/08\/Bulletin-2-min-815x700.png\" alt=\"\" class=\"wp-image-35506\"\/><\/a><\/figure><p>Pour en savoir plus sur notre <strong>bulletin sur la glace de mer<\/strong> <a href=\"https:\/\/www.mercator-ocean.eu\/en\/category\/sea-ice-bulletin-en-2\/\"><em>ici<\/em><\/a>.<\/p><\/div><div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\"><figure class=\"wp-block-image size-large\"><a href=\"https:\/\/bulletin.mercator-ocean.fr\/fr\/PSY4#3\/75.50\/-50.98\"><img decoding=\"async\" src=\"https:\/\/www.mercator-ocean.eu\/wp-content\/uploads\/2024\/08\/Bulletin-3-min-815x700.png\" alt=\"\" class=\"wp-image-35508\"\/><\/a><\/figure><p>Consultez notre <strong>Bulletin physique mondial quotidien pour une pr\u00e9vision \u00e0 9 jours <\/strong><a href=\"https:\/\/bulletin.mercator-ocean.fr\/fr\/PSY4#3\/75.50\/-50.98\"><em>ici<\/em><\/a>.<\/p><\/div><\/div><\/div><div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:5%\"><\/div><\/div>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n","protected":false},"excerpt":{"rendered":"<p>Un mois de septembre chaud Moyenne des temp\u00e9ratures de surface de la mer pour l&rsquo;oc\u00e9an Atlantique Nord (\u00e0 gauche), la mer M\u00e9diterran\u00e9e (au centre) et l&rsquo;oc\u00e9an mondial entre 1991 et 2020 selon l&rsquo;initiative sur le changement climatique de l&rsquo;ESA (en vert), et entre 2021 et 2024 (en rouge) + pr\u00e9visions (en noir) selon l&rsquo;analyse MOi [&hellip;]<\/p>\n","protected":false},"featured_media":0,"template":"","categories":[2476],"bulletin-templates":[],"bulletins-type":[2475],"translation-status":[2454],"class_list":["post-16446","bulletin","type-bulletin","status-publish","hentry","category-bulletin-des-temperatures-de-locean","bulletins-type-temperature-de-locean"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Bulletin de temp\u00e9rature de l&#039;oc\u00e9an - septembre 2024 - Mercator Ocean International<\/title>\n<meta name=\"robots\" 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