{"id":1214,"date":"2017-04-09T16:00:29","date_gmt":"2017-04-09T14:00:29","guid":{"rendered":"http:\/\/art-et-culture-du-monde.fr\/blog\/?p=1214"},"modified":"2017-04-09T16:36:12","modified_gmt":"2017-04-09T14:36:12","slug":"les-aurores-boreales","status":"publish","type":"post","link":"https:\/\/art-et-culture-du-monde.fr\/blog\/grand-nord\/les-aurores-boreales\/","title":{"rendered":"Les aurores bor\u00e9ales &#8230;"},"content":{"rendered":"<p>Les aurores bor\u00e9ales, un ph\u00e9nom\u00e8ne naturel visible dans les zones polaires, mais, contrairement \u00e0 ce qu&rsquo;on pense pas particuli\u00e8rement sur le cercle polaire. Il s&rsquo;agit de l&rsquo;interaction entre des particules envoy\u00e9es par le soleil et l&rsquo;atmosph\u00e8re de la Terre.<\/p>\n<p>Il se trouve que le champ magn\u00e9tique terrestre emp\u00eache la plupart du temps ces particules d&rsquo;atteindre notre atmosph\u00e8re sauf l\u00e0 o\u00f9 les lignes de champ convergent vers la Terre, dans les zones polaires. D&rsquo;ailleurs, il y a aussi des aurores pr\u00e8s du p\u00f4le Sud. On parle alors d&rsquo;aurore australe.<\/p>\n<p>Ce ph\u00e9nom\u00e8ne est pr\u00e9sent toute l&rsquo;ann\u00e9e, mais, particuli\u00e8rement visible en hiver quand les journ\u00e9es sont tr\u00e8s courtes. mais, son amplitude est li\u00e9e \u00e0 l&rsquo;activit\u00e9 solaire. Il est donc possible de pr\u00e9voir (\u00e0 peu pr\u00e8s), l&rsquo;intensit\u00e9 des aurores sur 3 jours. Cette intensit\u00e9 suit aussi le cycle solaire de 11 ans.<\/p>\n<p style=\"text-align: left;\">ici une courte vid\u00e9o qui montre l&rsquo;arriv\u00e9e des particules solaires (que l&rsquo;on appelle le vent solaire) sur la Terre:<\/p>\n<p style=\"text-align: center;\"><iframe loading=\"lazy\" src=\"https:\/\/www.youtube.com\/embed\/ziRKy6rNpR8?rel=0&amp;showinfo=0\" width=\"560\" height=\"315\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/p>\n<p>&nbsp;<\/p>\n<p>Voici une vid\u00e9o magnifique qui vous pr\u00e9sente des aurores bor\u00e9ales du Yukon. Profitez aussi de la musique!<\/p>\n<p style=\"text-align: center;\"><iframe loading=\"lazy\" src=\"https:\/\/www.youtube.com\/embed\/Pv__nN9P6Bg?rel=0&amp;showinfo=0\" width=\"560\" height=\"315\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Les aurores bor\u00e9ales, un ph\u00e9nom\u00e8ne naturel visible dans les zones polaires, mais, contrairement \u00e0 ce qu&rsquo;on pense pas particuli\u00e8rement sur le cercle polaire. Il s&rsquo;agit de l&rsquo;interaction entre des particules envoy\u00e9es par le soleil et l&rsquo;atmosph\u00e8re de la Terre. Il se trouve que le champ magn\u00e9tique terrestre emp\u00eache la plupart du temps ces particules d&rsquo;atteindre [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[9,2,5],"tags":[],"class_list":["post-1214","post","type-post","status-publish","format-standard","hentry","category-canada","category-grand-nord","category-yukon"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Les aurores bor\u00e9ales ... - La Nature d&#039;Eric<\/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:\/\/art-et-culture-du-monde.fr\/blog\/grand-nord\/les-aurores-boreales\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Les aurores bor\u00e9ales ... - La Nature d&#039;Eric\" \/>\n<meta property=\"og:description\" content=\"Les aurores bor\u00e9ales, un ph\u00e9nom\u00e8ne naturel visible dans les zones polaires, mais, contrairement \u00e0 ce qu&rsquo;on pense pas particuli\u00e8rement sur le cercle polaire. 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