{"id":317862,"date":"2025-08-14T05:19:11","date_gmt":"2025-08-14T05:19:11","guid":{"rendered":"https:\/\/www.europesays.com\/fr\/317862\/"},"modified":"2025-08-14T05:19:11","modified_gmt":"2025-08-14T05:19:11","slug":"pourquoi-la-chaleur-reste-prisonniere-de-la-ville-la-nuit","status":"publish","type":"post","link":"https:\/\/www.europesays.com\/fr\/317862\/","title":{"rendered":"pourquoi la chaleur reste prisonni\u00e8re de la ville la nuit"},"content":{"rendered":"<p>En ce milieu d\u2019ao\u00fbt suffocant, le d\u00e9partement du Rh\u00f4ne \u2013 plac\u00e9 en vigilance rouge mardi\u00a012 et mercredi 13\u00a0ao\u00fbt \u2013 vit un \u00e9pisode de canicule intense, avec des nuits qui ne descendent pas sous les 25\u00b0C dans certains quartiers de Lyon. Un ph\u00e9nom\u00e8ne bien connu des experts\u00a0: l\u2019\u00eelot de chaleur urbain. \u00ab\u00a0La chaleur reste au c\u0153ur des villes la nuit, j\u2019insiste sur la nuit, car c\u2019est un effet nocturne\u00a0\u00bb, rappelle Roland Pellenq, directeur de recherche au CNRS.<\/p>\n<p>En cause\u00a0: la capacit\u00e9 des mat\u00e9riaux urbains \u2013 b\u00e9ton, asphalte, pierre \u2013 \u00e0 absorber l\u2019\u00e9nergie solaire en journ\u00e9e et \u00e0 la restituer d\u00e8s que l\u2019air se rafra\u00eechit. \u00ab\u00a0Les mat\u00e9riaux stockent de l\u2019\u00e9nergie et, quand le soleil se couche, la chaleur \u201ccoule\u201d vers l\u2019endroit&#8230;<\/p>\n","protected":false},"excerpt":{"rendered":"En ce milieu d\u2019ao\u00fbt suffocant, le d\u00e9partement du Rh\u00f4ne \u2013 plac\u00e9 en vigilance rouge mardi\u00a012 et mercredi 13\u00a0ao\u00fbt&hellip;\n","protected":false},"author":2,"featured_media":317863,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1889],"tags":[1111,11,2430,6698,3152,2757,3153,3154,436,1777,674,107,1011,27,2428,2756,8423,12,25,2429,3151],"class_list":{"0":"post-317862","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-lyon","8":"tag-actu","9":"tag-actualites","10":"tag-auvergne-rhone-alpes","11":"tag-canicule","12":"tag-edition-est-lyonnais","13":"tag-edition-lyon-villeurbanne","14":"tag-edition-ouest-lyonnais","15":"tag-edition-sud-lyonnais","16":"tag-environnement","17":"tag-eu","18":"tag-europe","19":"tag-fil-info","20":"tag-fr","21":"tag-france","22":"tag-lyon","23":"tag-lyon-bassin","24":"tag-meteorologie-climat","25":"tag-news","26":"tag-republique-francaise","27":"tag-rhone","28":"tag-selection-de-la-redaction-69"},"share_on_mastodon":{"url":"https:\/\/pubeurope.com\/@fr\/115025436002719494","error":""},"_links":{"self":[{"href":"https:\/\/www.europesays.com\/fr\/wp-json\/wp\/v2\/posts\/317862","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.europesays.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.europesays.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/fr\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/fr\/wp-json\/wp\/v2\/comments?post=317862"}],"version-history":[{"count":0,"href":"https:\/\/www.europesays.com\/fr\/wp-json\/wp\/v2\/posts\/317862\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/fr\/wp-json\/wp\/v2\/media\/317863"}],"wp:attachment":[{"href":"https:\/\/www.europesays.com\/fr\/wp-json\/wp\/v2\/media?parent=317862"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.europesays.com\/fr\/wp-json\/wp\/v2\/categories?post=317862"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.europesays.com\/fr\/wp-json\/wp\/v2\/tags?post=317862"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}