{"id":13132,"date":"2016-11-13T19:50:13","date_gmt":"2016-11-13T18:50:13","guid":{"rendered":"http:\/\/www.escalade.pro\/news\/?p=13132"},"modified":"2016-11-13T19:50:13","modified_gmt":"2016-11-13T18:50:13","slug":"risque-avalanche-geoportail-indique-pentes-superieures-30-degres","status":"publish","type":"post","link":"https:\/\/www.escalade.pro\/news\/risque-avalanche-geoportail-indique-pentes-superieures-30-degres\/","title":{"rendered":"Risque d&rsquo;avalanche: Geoportail indique d\u00e9sormais les pentes sup\u00e9rieures \u00e0 30\u00b0"},"content":{"rendered":"<p><a href=\"http:\/\/www.escalade.pro\/news\/wp-content\/uploads\/2016\/11\/P1090561.jpg\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/www.escalade.pro\/news\/wp-content\/uploads\/2016\/11\/P1090561-300x225.jpg\" alt=\"ski rando chamonix montblanc\" width=\"300\" height=\"225\" class=\"aligncenter size-medium wp-image-13135\" srcset=\"https:\/\/www.escalade.pro\/news\/wp-content\/uploads\/2016\/11\/P1090561-300x225.jpg 300w, https:\/\/www.escalade.pro\/news\/wp-content\/uploads\/2016\/11\/P1090561-768x576.jpg 768w, https:\/\/www.escalade.pro\/news\/wp-content\/uploads\/2016\/11\/P1090561-600x450.jpg 600w, https:\/\/www.escalade.pro\/news\/wp-content\/uploads\/2016\/11\/P1090561-200x150.jpg 200w, https:\/\/www.escalade.pro\/news\/wp-content\/uploads\/2016\/11\/P1090561.jpg 1000w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p><strong>Dans l&rsquo;\u00e9chelle europ\u00e9enne des risques d&rsquo;avalanches (voir ce <a href=\"http:\/\/www.ffme.fr\/fiches-ffme-techniques\/page\/l-echelle-europeenne-des-risques-d-avalanche.html\" target=\"_blank\">lien<\/a>), comme dans d&rsquo;autres m\u00e9thodes d&rsquo;explication et de pr\u00e9vention du risque d&rsquo;avalanche, on consid\u00e8re que les d\u00e9clenchements d&rsquo;avalanches sont \u00e0 consid\u00e9rer dans les \u00ab\u00a0pentes raides\u00a0\u00bb, c&rsquo;est \u00e0 dire d&rsquo;une inclinaison minimum de 30 degr\u00e9s par rapport \u00e0 l&rsquo;horizontale. L&rsquo;IGN vient justement de mettre \u00e0 disposition sur son site web <a href=\"https:\/\/www.geoportail.gouv.fr\/\" target=\"_blank\">geoportail.gouv.fr<\/a>, un outil permettant de visualiser les pentes dont l&rsquo;inclinaison est sup\u00e9rieure \u00e0 30\u00b0<\/strong> (voir l&rsquo;encart ci-dessous, pentes de couleur jaune). Les pentes sup\u00e9rieures \u00e0 35\u00b0 sont en orange, en rouge pour 40\u00b0 et violet pour 45\u00b0).<br \/>\nAlors que la neige est arriv\u00e9 t\u00f4t cet automne, en comparaison des derni\u00e8res ann\u00e9es, <strong>cet outil se r\u00e9v\u00e8le tr\u00e8s pr\u00e9cieux pour pr\u00e9parer votre sortie de ski de rando et anticiper l&rsquo;itin\u00e9raire \u00e0 parcourir<\/strong>. Et oui, <strong>m\u00eame par risque 2 il faut se m\u00e9fier des pentes raides que l&rsquo;on traverse o\u00f9 qui sont au dessus de nos t\u00eates!<\/strong><\/p>\n<p><iframe loading=\"lazy\" width=\"600\" height=\"400\" frameborder=\"0\" scrolling=\"no\" marginheight=\"0\" marginwidth=\"0\" sandbox=\"allow-forms allow-scripts allow-same-origin\" src=\"https:\/\/www.geoportail.gouv.fr\/embed\/visu.html?c=6.82027816772461,45.9169748614801&#038;z=15&#038;l0=GEOGRAPHICALGRIDSYSTEMS.MAPS.SCAN-EXPRESS.STANDARD::GEOPORTAIL:OGC:WMTS(1)&#038;l1=GEOGRAPHICALGRIDSYSTEMS.PLANIGN::GEOPORTAIL:OGC:WMTS(1)&#038;l2=GEOGRAPHICALGRIDSYSTEMS.MAPS.SCAN25TOUR::GEOPORTAIL:OGC:WMTS(1)&#038;l3=GEOGRAPHICALGRIDSYSTEMS.SLOPES.MOUNTAIN::GEOPORTAIL:OGC:WMTS(0.6)&#038;permalink=yes\" allowfullscreen><\/iframe><\/p>\n<p>Pour activer la \u00ab\u00a0carte des pentes\u00a0\u00bb, le plus simple est de saisir le mot \u00ab\u00a0pentes\u00a0\u00bb dans la barre de recherche, et de cliquer sur \u00ab\u00a0carte des pentes\u00a0\u00bb. Elle sera alors ajout\u00e9e aux cartes activ\u00e9es, qui sont accessibles par l&rsquo;onglet \u00ab\u00a0cartes en cours\u00a0\u00bb sur la droite de la fen\u00eatre. <\/p>\n<p><a href=\"http:\/\/www.escalade.pro\/news\/wp-content\/uploads\/2016\/11\/Capture-d\u2019e\u0301cran-2016-11-13-a\u0300-14.03.55.png\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/www.escalade.pro\/news\/wp-content\/uploads\/2016\/11\/Capture-d\u2019e\u0301cran-2016-11-13-a\u0300-14.03.55-300x225.png\" alt=\"carte pentes geoportail\" width=\"300\" height=\"225\" class=\"aligncenter size-medium wp-image-13137\" srcset=\"https:\/\/www.escalade.pro\/news\/wp-content\/uploads\/2016\/11\/Capture-d\u2019e\u0301cran-2016-11-13-a\u0300-14.03.55-300x225.png 300w, https:\/\/www.escalade.pro\/news\/wp-content\/uploads\/2016\/11\/Capture-d\u2019e\u0301cran-2016-11-13-a\u0300-14.03.55-200x150.png 200w, https:\/\/www.escalade.pro\/news\/wp-content\/uploads\/2016\/11\/Capture-d\u2019e\u0301cran-2016-11-13-a\u0300-14.03.55.png 559w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p>En cliquant sur la cl\u00e9 \u00e0 molette, on peut r\u00e9gler par un curseur l&rsquo;opacit\u00e9 de la carte des pentes superpos\u00e9e \u00e0 la \u00ab\u00a0carte topographique IGN\u00a0\u00bb, et ainsi facilement lire la raideur du terrain sur lequel on envisage de poser ces spatules. Evidemment <strong>tous ces informations prises avant la sortie devront \u00eatre confront\u00e9es \u00e0 la r\u00e9alit\u00e9 du terrain, pour modifier ou renoncer au projet initial si les conditions rencontr\u00e9es l&rsquo;imposent.<\/strong><\/p>\n<p><a href=\"http:\/\/www.escalade.pro\/news\/wp-content\/uploads\/2016\/11\/Capture-d\u2019e\u0301cran-2016-11-13-a\u0300-14.03.26.png\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/www.escalade.pro\/news\/wp-content\/uploads\/2016\/11\/Capture-d\u2019e\u0301cran-2016-11-13-a\u0300-14.03.26-300x241.png\" alt=\"utilisation carte pentes geoportail\" width=\"300\" height=\"241\" class=\"aligncenter size-medium wp-image-13138\" srcset=\"https:\/\/www.escalade.pro\/news\/wp-content\/uploads\/2016\/11\/Capture-d\u2019e\u0301cran-2016-11-13-a\u0300-14.03.26-300x241.png 300w, https:\/\/www.escalade.pro\/news\/wp-content\/uploads\/2016\/11\/Capture-d\u2019e\u0301cran-2016-11-13-a\u0300-14.03.26-187x150.png 187w, https:\/\/www.escalade.pro\/news\/wp-content\/uploads\/2016\/11\/Capture-d\u2019e\u0301cran-2016-11-13-a\u0300-14.03.26.png 545w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Dans l&rsquo;\u00e9chelle europ\u00e9enne des risques d&rsquo;avalanches (voir ce lien), comme dans d&rsquo;autres m\u00e9thodes d&rsquo;explication et de pr\u00e9vention du risque d&rsquo;avalanche,<\/p>\n","protected":false},"author":1,"featured_media":13138,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"colormag_page_container_layout":"default_layout","colormag_page_sidebar_layout":"default_layout","_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"ngg_post_thumbnail":0,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[8],"tags":[],"class_list":["post-13132","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ski-freeride"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Risque d&#039;avalanche: Geoportail indique d\u00e9sormais les pentes sup\u00e9rieures \u00e0 30\u00b0 &#8211; L&#039;Arqu\u00e9e Libre - Fred Vionnet entraineur\/moniteur escalade<\/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.escalade.pro\/news\/risque-avalanche-geoportail-indique-pentes-superieures-30-degres\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Risque d&#039;avalanche: Geoportail indique d\u00e9sormais les pentes sup\u00e9rieures \u00e0 30\u00b0 &#8211; L&#039;Arqu\u00e9e Libre - Fred Vionnet entraineur\/moniteur escalade\" \/>\n<meta property=\"og:description\" content=\"Dans l&rsquo;\u00e9chelle europ\u00e9enne des risques d&rsquo;avalanches (voir ce lien), comme dans d&rsquo;autres m\u00e9thodes d&rsquo;explication et de pr\u00e9vention du risque d&rsquo;avalanche,\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.escalade.pro\/news\/risque-avalanche-geoportail-indique-pentes-superieures-30-degres\/\" \/>\n<meta property=\"og:site_name\" content=\"L&#039;Arqu\u00e9e Libre - Fred Vionnet entraineur\/moniteur escalade\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/grimpisme\/\" \/>\n<meta property=\"article:author\" content=\"https:\/\/www.facebook.com\/fredCaillouXvionnet\" \/>\n<meta property=\"article:published_time\" content=\"2016-11-13T18:50:13+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.escalade.pro\/news\/wp-content\/uploads\/2016\/11\/Capture-d\u2019e\u0301cran-2016-11-13-a\u0300-14.03.26.png\" \/>\n\t<meta property=\"og:image:width\" content=\"545\" \/>\n\t<meta property=\"og:image:height\" content=\"438\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Fred Vionnet\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"Fred Vionnet\" \/>\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.escalade.pro\\\/news\\\/risque-avalanche-geoportail-indique-pentes-superieures-30-degres\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.escalade.pro\\\/news\\\/risque-avalanche-geoportail-indique-pentes-superieures-30-degres\\\/\"},\"author\":{\"name\":\"Fred Vionnet\",\"@id\":\"https:\\\/\\\/www.escalade.pro\\\/news\\\/#\\\/schema\\\/person\\\/e0e0520aa48cfda56ae5406c2fe2caeb\"},\"headline\":\"Risque d&rsquo;avalanche: Geoportail indique d\u00e9sormais les pentes sup\u00e9rieures \u00e0 30\u00b0\",\"datePublished\":\"2016-11-13T18:50:13+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.escalade.pro\\\/news\\\/risque-avalanche-geoportail-indique-pentes-superieures-30-degres\\\/\"},\"wordCount\":294,\"commentCount\":3,\"publisher\":{\"@id\":\"https:\\\/\\\/www.escalade.pro\\\/news\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/www.escalade.pro\\\/news\\\/risque-avalanche-geoportail-indique-pentes-superieures-30-degres\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.escalade.pro\\\/news\\\/wp-content\\\/uploads\\\/2016\\\/11\\\/Capture-d\u2019e\u0301cran-2016-11-13-a\u0300-14.03.26.png\",\"articleSection\":[\"Ski de rando et freeride\"],\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/www.escalade.pro\\\/news\\\/risque-avalanche-geoportail-indique-pentes-superieures-30-degres\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.escalade.pro\\\/news\\\/risque-avalanche-geoportail-indique-pentes-superieures-30-degres\\\/\",\"url\":\"https:\\\/\\\/www.escalade.pro\\\/news\\\/risque-avalanche-geoportail-indique-pentes-superieures-30-degres\\\/\",\"name\":\"Risque d'avalanche: Geoportail indique d\u00e9sormais les pentes sup\u00e9rieures \u00e0 30\u00b0 &#8211; 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L\u2019avalanche a co\u00fbt\u00e9 la vie \u00e0 une personne. 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Nous \u00e9tions seulement 2 (avec Le Chilien) pour tracer la mont\u00e9e \u00e0 l'Eypiol, et il n'a pas fallu faire les feignants, mais alors la descente fut d\u00e9mente malgr\u00e9 un peu de jour blanc sur le\u2026","rel":"","context":"Dans &quot;Ski de rando et freeride&quot;","block_context":{"text":"Ski de rando et freeride","link":"https:\/\/www.escalade.pro\/news\/category\/ski-freeride\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":11462,"url":"https:\/\/www.escalade.pro\/news\/videotopo-ski-dome-glaciers\/","url_meta":{"origin":13132,"position":2},"title":"Vid\u00e9oTOPO ski: D\u00f4me des Glaciers (73)","author":"Fred Vionnet","date":"12 juin 2016","format":false,"excerpt":"Le versant SW du D\u00f4me des Glaciers b\u00e9n\u00e9ficie des nombreux atouts d'une magnifique course de ski de rando en haute montagne de fin de saison (mi-mai est le mieux g\u00e9n\u00e9ralement). 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