{"id":2187,"date":"2021-12-06T22:22:50","date_gmt":"2021-12-06T22:22:50","guid":{"rendered":"https:\/\/climatlantic.ca\/wp\/impacts\/ondes-de-tempete\/"},"modified":"2023-11-24T15:14:05","modified_gmt":"2023-11-24T19:14:05","slug":"ondes-de-tempete","status":"publish","type":"page","link":"https:\/\/climatlantic.panchroma.dev\/fr\/impacts\/ondes-de-tempete\/","title":{"rendered":"Ondes de temp\u00eate"},"content":{"rendered":"<p>[et_pb_section fb_built=&#8221;1&#8243; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_row _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; custom_padding=&#8221;||3px|||&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; custom_padding=&#8221;||||false|false&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<p>IMPACTS DES CHANGEMENTS CLIMATIQUES<\/p>\n<h3>Ondes de temp\u00eate<\/h3>\n<p>Les ondes de temp\u00eate se produisent dans les zones c\u00f4ti\u00e8res lorsque de forts vents soufflant sur le littoral et une faible pression atmosph\u00e9rique pendant le passage de temp\u00eates (parfois des ouragans) accroissent, au-del\u00e0 des pr\u00e9dictions, le niveau de l\u2019eau le long du rivage. Les fortes ondes de temp\u00eate qui se produisent lors des mar\u00e9es hautes peuvent provoquer des inondations, l\u2019\u00e9vacuation de collectivit\u00e9s et des pertes de vies humaines. Les ondes de temp\u00eate augmentent en raison de l\u2019\u00e9l\u00e9vation du niveau de la mer attribuable au changement climatique.\u00a0<\/p>\n<p>Avec son littoral s\u2019\u00e9tendant sur environ 42 000 km, le Canada atlantique se caract\u00e9rise par divers syst\u00e8mes c\u00f4tiers, notamment des plages de sable, des estuaires, des battures intertidales, des marais sal\u00e9s, des plages de galets, des falaises, des promontoires et des rivages rocheux. Les ondes de temp\u00eate ont un impact variable sur chacun de ces syst\u00e8mes c\u00f4tiers.<\/span><\/p>\n<p>[\/et_pb_text][et_pb_image src=&#8221;https:\/\/climatlantic.ca\/wp\/wp-content\/uploads\/2021\/12\/storm-surge-diagram-v3-FR.jpeg&#8221; title_text=&#8221;CLIMAtlantic-storm-surge-diagram-FR&#8221; _builder_version=&#8221;4.23.1&#8243; _module_preset=&#8221;default&#8221; hover_enabled=&#8221;0&#8243; global_colors_info=&#8221;{}&#8221; alt=&#8221;Dessin montrant comment l&#8217;\u00e9l\u00e9vation du niveau de la mer entra\u00eene une augmentation de la hauteur des mar\u00e9es r\u00e9guli\u00e8res (mar\u00e9e haute et mar\u00e9e basse) au fil du temps, ce qui entra\u00eene \u00e9galement une augmentation du niveau de l&#8217;eau en cas d&#8217;onde de temp\u00eate.&#8221; sticky_enabled=&#8221;0&#8243;][\/et_pb_image][et_pb_text _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<p>Il faut quatre \u00e9v\u00e9nements ind\u00e9pendants pour qu\u2019une onde de temp\u00eate que l\u2019on qualifierait du \u00ab pire des sc\u00e9narios \u00bb se produise au Canada atlantique. Ce serait une mar\u00e9e de vive-eau; un p\u00e9rig\u00e9e lunaire; une haute mar\u00e9e quotidienne; une puissante temp\u00eate. Les ondes de temp\u00eate peuvent survenir rapidement, sans laisser beaucoup de temps pour se pr\u00e9parer.<\/p>\n<p>La combinaison de l\u2019\u00e9l\u00e9vation du niveau de la mer et des ondes de temp\u00eate pourrait submerger le syst\u00e8me de digues historiques qui contr\u00f4le les inondations des basses terres et prot\u00e8ge le corridor de transport et de commerce entre le Nouveau-Brunswick et la Nouvelle-\u00c9cosse, l\u2019isthme de Chignecto ou les marais de Tantramar, corridor par lequel transitent chaque jour des biens commerciaux d\u2019une valeur de 50 millions de dollars canadiens. (Dietz et Hoyt, 2016).<\/p>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section]<\/p>\n","protected":false},"excerpt":{"rendered":"<p>IMPACTS DES CHANGEMENTS CLIMATIQUES Ondes de temp\u00eate Les ondes de temp\u00eate se produisent dans les zones c\u00f4ti\u00e8res lorsque de forts vents soufflant sur le littoral et une faible pression atmosph\u00e9rique pendant le passage de temp\u00eates (parfois des ouragans) accroissent, au-del\u00e0 des pr\u00e9dictions, le niveau de l\u2019eau le long du rivage. Les fortes ondes de temp\u00eate [&hellip;]<\/p>\n","protected":false},"author":18,"featured_media":0,"parent":2156,"menu_order":2,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[],"tags":[],"class_list":["post-2187","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Ondes de temp\u00eate - CLIMAtlantic<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/climatlantic.panchroma.dev\/fr\/impacts\/ondes-de-tempete\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Ondes de temp\u00eate - CLIMAtlantic\" \/>\n<meta property=\"og:description\" content=\"IMPACTS DES CHANGEMENTS CLIMATIQUES Ondes de temp\u00eate Les ondes de temp\u00eate se produisent dans les zones c\u00f4ti\u00e8res lorsque de forts vents soufflant sur le littoral et une faible pression atmosph\u00e9rique pendant le passage de temp\u00eates (parfois des ouragans) accroissent, au-del\u00e0 des pr\u00e9dictions, le niveau de l\u2019eau le long du rivage. 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