{"id":4056,"date":"2016-06-23T19:49:00","date_gmt":"2016-06-23T23:49:00","guid":{"rendered":"http:\/\/ccli.machinedev.ca\/resource\/investigation-of-the-2013-alberta-food-from-weather-and-climate-perspectives\/"},"modified":"2021-11-02T15:24:12","modified_gmt":"2021-11-02T19:24:12","slug":"investigation-of-the-2013-alberta-food-from-weather-and-climate-perspectives","status":"publish","type":"resource","link":"https:\/\/ccli.ubc.ca\/fr\/resource\/investigation-of-the-2013-alberta-food-from-weather-and-climate-perspectives\/","title":{"rendered":"Investigation of the 2013 Alberta food from weather and climate perspectives"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Entre le 19 et 21 juin 2013, de fortes pr\u00e9cipitations ont affect\u00e9 le sud de l&rsquo;Alberta et les r\u00e9gions adjacentes, menant \u00e0 des dommages alimentaires importants dans plusieurs communaut\u00e9s. Cela a men\u00e9 \u00e0 la catastrophe naturelle la plus co\u00fbteuse de l&rsquo;histoire du Canada. Les dommages alimentaires ont \u00e9t\u00e9 caus\u00e9s par une combinaison de facteurs m\u00e9t\u00e9orologiques et hydrologiques, qui sont \u00e9tudi\u00e9s du point de vue m\u00e9t\u00e9orologique et climatique avec le mod\u00e8le climatique r\u00e9gional canadien de cinqui\u00e8me g\u00e9n\u00e9ration. Les r\u00e9sultats montrent que la contribution de l&rsquo;ascension orographique aux pr\u00e9cipitations \u00e9tait importante, d\u00e9passant 30% sur les contreforts des montagnes Rocheuses. Un autre facteur contributif \u00e9tait l&rsquo;\u00e9vapotranspiration de la surface terrestre, qui a agi comme une source d&rsquo;humidit\u00e9 importante et a probablement \u00e9t\u00e9 renforc\u00e9e par des pr\u00e9cipitations ant\u00e9rieures qui ont augment\u00e9 l&rsquo;humidit\u00e9 du sol sur le nord des grandes plaines. L&rsquo;analyse d&rsquo;attribution d&rsquo;\u00e9v\u00e9nement sugg\u00e8re que l&rsquo;augmentation des gaz \u00e0 effet de serre induite par les humains aurait possiblement contribu\u00e9 \u00e0 l&rsquo;augmentation des taux d&rsquo;\u00e9vapotranspiration plus \u00e9lev\u00e9s que ceux des conditions pr\u00e9-industrielles. Les sols gel\u00e9s et enneig\u00e9s \u00e0 haute altitude ont vraissemblablement jou\u00e9 un r\u00f4le important dans la production de d\u00e9bits record. Les r\u00e9sultats indiquent un doublement du ruissellement de surface en raison des conditions de gel, tandis que 25% du ruissellement mod\u00e9lis\u00e9 provenait de la fonte des neiges. Le temps de retour estim\u00e9 de l&rsquo;\u00e9v\u00e9nement de pr\u00e9cipitations de 3 jours d\u00e9passe 50 ans sur une grande r\u00e9gion, et une augmentation de l&rsquo;occurrence d&rsquo;\u00e9v\u00e9nements de pr\u00e9cipitations extr\u00eames similaires est pr\u00e9vue d&rsquo;ici la fin du 21e si\u00e8cle. L&rsquo;analyse de l&rsquo;attribution des \u00e9v\u00e9nements sugg\u00e8re que l&rsquo;augmentation des gaz \u00e0 effet de serre pourrait avoir augment\u00e9 les niveaux de retour des pr\u00e9cipitations de mai \u00e0 juin sur 1 et 3 jours par rapport aux conditions pr\u00e9-industrielles. Cependant, aucune infuence anthropique ne peut \u00eatre d\u00e9tect\u00e9e pour le ruissellement de surface sur 1 et 3 jours, car les augmentations des pr\u00e9cipitations extr\u00eames dans le climat actuel sont compens\u00e9es par une diminution de la couverture de neige et une baisse de la teneur en eau gel\u00e9e dans les sols pendant les mois de transition de mai \u00e0 juin par rapport au climat pr\u00e9-industriel.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">*Cette ressource est en anglais.<\/p>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link has-background no-border-radius\" href=\"http:\/\/ccli.ubc.ca\/wp-content\/uploads\/2021\/05\/Investigation-of-the-2013-Alberta-food-from-weather-and-climate-perspectives.pdf\" style=\"background-color:#2e5b66\" target=\"_blank\" rel=\"noreferrer noopener\">Lisez le rapport<\/a><\/div>\n<\/div>\n","protected":false},"featured_media":2037,"template":"","resource_type":[28],"topic":[104],"area":[105],"class_list":["post-4056","resource","type-resource","status-publish","has-post-thumbnail","hentry","topic-specifique-secteur","area-canada-fr"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Investigation of the 2013 Alberta food from weather and climate perspectives - Canada Climate Law Initiative<\/title>\n<meta name=\"description\" content=\"Entre le 19 et 21 juin 2013, de fortes pr\u00e9cipitations ont affect\u00e9 le sud de l&#039;Alberta et des r\u00e9gions adjacentes, menant \u00e0 des dommages alimentaires importants dans plusieurs communaut\u00e9s. Cela a men\u00e9 \u00e0 la catastrophe naturelle la plus co\u00fbteuse de l&#039;histoire du Canada.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/ccli.ubc.ca\/fr\/resource\/investigation-of-the-2013-alberta-food-from-weather-and-climate-perspectives\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Investigation of the 2013 Alberta food from weather and climate perspectives\" \/>\n<meta property=\"og:description\" content=\"Entre le 19 et 21 juin 2013, de fortes pr\u00e9cipitations ont affect\u00e9 le sud de l&#039;Alberta et des r\u00e9gions adjacentes, menant \u00e0 des dommages alimentaires importants dans plusieurs communaut\u00e9s. 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