{"id":4313,"date":"2021-10-07T15:09:28","date_gmt":"2021-10-07T13:09:28","guid":{"rendered":"http:\/\/www.hydrosciences.org\/?p=3331"},"modified":"2021-10-07T15:09:28","modified_gmt":"2021-10-07T13:09:28","slug":"modelisation-des-inondations-a-dakar-contexte-principes-generaux-et-construction-de-la-topologie-de-drainage","status":"publish","type":"post","link":"https:\/\/www.hydrosciences.org\/?p=4313&lang=fr","title":{"rendered":"Mod\u00e9lisation des inondations \u00e0 Dakar : Contexte, principes g\u00e9n\u00e9raux et construction de la topologie de drainage"},"content":{"rendered":"\n<p>Conf\u00e9rence pr\u00e9sent\u00e9e par <strong>Laurent Di\u00e9m\u00e9<\/strong>, doctorant HSM,  le 30 septembre 2021 dans le cadre des s\u00e9minaires du jeudi<\/p>\n\n\n\n<p><strong>R\u00e9sum\u00e9 :<\/strong><\/p>\n\n\n\n<p>Dakar, capitale du S\u00e9n\u00e9gal, est une agglom\u00e9ration en proie aux inondations de fa\u00e7on quasi annuelle. Elles occasionnent plusieurs d\u00e9g\u00e2ts tant humains, mat\u00e9riels que sanitaires. Un int\u00e9r\u00eat croissant est accord\u00e9 pour la pr\u00e9vision de l\u2019intensit\u00e9 des risques d\u2019inondation localis\u00e9e. Les mod\u00e8les d\u2019inondations jouent un r\u00f4le central dans l\u2019\u00e9valuation et la pr\u00e9vision des inondations. Ils soutiennent la gestion des crises lors des crues et aident \u00e0 identifier les mesures de r\u00e9duction. Cependant, l\u2019inondation en milieu urbain est particuli\u00e8rement difficile \u00e0 mod\u00e9liser du fait de l\u2019artificialisation de l\u2019occupation du sol et du drainage : obstacles li\u00e9s au b\u00e2ti, modification des directions et de l\u2019hydraulique des axes drainants, ouvrages de stockage ou de rel\u00e8vement etc.\u2026).<\/p>\n\n\n\n<p>La mise en place d\u2019un mod\u00e8le d\u2019inondation n\u00e9cessite une prise en compte appropri\u00e9e de ces conditions urbaines. Cette communication donnera l\u2019occasion de d\u00e9crire le contexte et les enjeux li\u00e9s aux inondations \u00e0 Dakar, de montrer l\u2019int\u00e9r\u00eat du SIG urbain constitu\u00e9 par les services nationaux, et de pr\u00e9senter les modalit\u00e9s de mise en \u0153uvre d\u2019un mod\u00e8le de suivi des inondations \u00e0 l\u2019\u00e9chelle de l\u2019agglom\u00e9ration enti\u00e8re.<\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Conf\u00e9rence pr\u00e9sent\u00e9e par Laurent Di\u00e9m\u00e9, doctorant HSM, le 30 septembre 2021 dans le cadre des s\u00e9minaires du jeudi R\u00e9sum\u00e9 : Dakar, capitale du S\u00e9n\u00e9gal, est une agglom\u00e9ration en proie aux inondations de fa\u00e7on quasi annuelle. Elles occasionnent plusieurs d\u00e9g\u00e2ts tant humains, mat\u00e9riels que sanitaires. Un int\u00e9r\u00eat croissant est accord\u00e9 pour la pr\u00e9vision de l\u2019intensit\u00e9 des &hellip;<\/p>\n<p class=\"read-more\"> <a class=\"\" href=\"https:\/\/www.hydrosciences.org\/?p=4313&#038;lang=fr\"> <span class=\"screen-reader-text\">Mod\u00e9lisation des inondations \u00e0 Dakar : Contexte, principes g\u00e9n\u00e9raux et construction de la topologie de drainage<\/span> Lire la suite \u00bb<\/a><\/p>\n","protected":false},"author":1,"featured_media":3065,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"","footnotes":""},"categories":[16],"tags":[],"class_list":["post-4313","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-toutes-les-actualites-et-seminaires"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.2 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Mod\u00e9lisation des inondations \u00e0 Dakar : Contexte, principes g\u00e9n\u00e9raux et construction de la topologie de drainage - HydroSciences Montpellier<\/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:\/\/www.hydrosciences.org\/?p=4313&lang=fr\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Mod\u00e9lisation des inondations \u00e0 Dakar : Contexte, principes g\u00e9n\u00e9raux et construction de la topologie de drainage - HydroSciences Montpellier\" \/>\n<meta property=\"og:description\" content=\"Conf\u00e9rence pr\u00e9sent\u00e9e par Laurent Di\u00e9m\u00e9, doctorant HSM, le 30 septembre 2021 dans le cadre des s\u00e9minaires du jeudi R\u00e9sum\u00e9 : Dakar, capitale du S\u00e9n\u00e9gal, est une agglom\u00e9ration en proie aux inondations de fa\u00e7on quasi annuelle. Elles occasionnent plusieurs d\u00e9g\u00e2ts tant humains, mat\u00e9riels que sanitaires. Un int\u00e9r\u00eat croissant est accord\u00e9 pour la pr\u00e9vision de l\u2019intensit\u00e9 des &hellip; Mod\u00e9lisation des inondations \u00e0 Dakar : Contexte, principes g\u00e9n\u00e9raux et construction de la topologie de drainage Lire la suite \u00bb\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.hydrosciences.org\/?p=4313&amp;lang=fr\" \/>\n<meta property=\"og:site_name\" content=\"HydroSciences Montpellier\" \/>\n<meta property=\"article:published_time\" content=\"2021-10-07T13:09:28+00:00\" \/>\n<meta name=\"author\" content=\"administrateur\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"administrateur\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.hydrosciences.org\/?p=4313&lang=fr#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.hydrosciences.org\/?p=4313&lang=fr\"},\"author\":{\"name\":\"administrateur\",\"@id\":\"https:\/\/www.hydrosciences.org\/#\/schema\/person\/2e13014374222da5944c9e64ff491a7e\"},\"headline\":\"Mod\u00e9lisation des inondations \u00e0 Dakar : Contexte, principes g\u00e9n\u00e9raux et construction de la topologie de drainage\",\"datePublished\":\"2021-10-07T13:09:28+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.hydrosciences.org\/?p=4313&lang=fr\"},\"wordCount\":257,\"publisher\":{\"@id\":\"https:\/\/www.hydrosciences.org\/#organization\"},\"image\":{\"@id\":\"https:\/\/www.hydrosciences.org\/?p=4313&lang=fr#primaryimage\"},\"thumbnailUrl\":\"\",\"articleSection\":[\"Actualit\u00e9s-old\"],\"inLanguage\":\"fr-FR\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.hydrosciences.org\/?p=4313&lang=fr\",\"url\":\"https:\/\/www.hydrosciences.org\/?p=4313&lang=fr\",\"name\":\"Mod\u00e9lisation des inondations \u00e0 Dakar : Contexte, principes g\u00e9n\u00e9raux et construction de la topologie de drainage - 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