{"id":535,"date":"2013-09-26T14:23:26","date_gmt":"2013-09-26T12:23:26","guid":{"rendered":"http:\/\/wp.unil.ch\/risk\/?p=535"},"modified":"2013-09-26T17:01:49","modified_gmt":"2013-09-26T15:01:49","slug":"virgile-nanchen-application-de-la-technologie-lidar-a-la-methodologie-matterock","status":"publish","type":"post","link":"https:\/\/wp.unil.ch\/risk\/virgile-nanchen-application-de-la-technologie-lidar-a-la-methodologie-matterock\/","title":{"rendered":"Virgile Nanchen: Application de la technologie LIDAR \u00e0 la m\u00e9thodologie Matterock"},"content":{"rendered":"<p><em>Virgile Nanchen<\/em><br \/>\n<span style=\"background-color: #ffffff\"><em>Co-supervisors : Prof. Michel Jaboyedoff<\/em><\/span><br \/>\n<em><span style=\"background-color: #ffffff\">Experts : Alex Loye, Andrea Pedrazzini<\/span><em><br \/>\n<\/em><\/em><\/p>\n<p style=\"text-align: justify\">The rockslide of 1991 in Randa motivated the development of Matterock methodology\u00a0(Rouiller et al. 1998). Based on the principle that there is no hazards without discontinuity,\u00a0this evaluation method of rock walls is based of the structural pattern of the cliff to identify\u00a0the compartments favourable to rockslide Within the framework of the methodology and as a\u00a0complement to field studies, some altitude numerical models and statistical methods has been\u00a0used in order to create automatically hazard\u2019s map.<\/p>\n<p style=\"text-align: justify\">Since the establishment of the methodology, tools for automatic detection have been highly\u00a0improved, the resolution of terrain numerical models has increased, and new instruments\u00a0based on laser technology have been developed, enabling to make 3D models of rock faces.\u00a0The LIDAR (Light Detection and Ranging) system has shed a new light in terrain analysis. It enables to create point\u2019s cloud with a centimetre resolution, representing the surface geometry\u00a0of rock walls.<\/p>\n<p style=\"text-align: justify\">Jointly to the development of such a technology, several methods, based on clusters of points\u00a0and high resolution MNTs, have been developed in order to identify the structural pattern of\u00a0the cliff. Within the framework of this work, several on these methods have been applied on\u00a0the site where the Matterock methodology has been developed. Results are compared to those\u00a0of 1998 in order to outline the contribution of these new technologies.\u00a0The objective of this work is to evaluate if such new tools are comparable to the Matterock\u00a0methodology.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Virgile Nanchen Co-supervisors : Prof. Michel Jaboyedoff Experts : Alex Loye, Andrea Pedrazzini The rockslide of 1991 in Randa motivated the development of Matterock methodology\u00a0(Rouiller et al. 1998). Based on &hellip; <\/p>\n","protected":false},"author":1341,"featured_media":887,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_seopress_robots_primary_cat":"","_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","ngg_post_thumbnail":0,"footnotes":""},"categories":[73758],"tags":[51861],"class_list":{"0":"post-535","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-masters_completed","8":"tag-51861"},"_links":{"self":[{"href":"https:\/\/wp.unil.ch\/risk\/wp-json\/wp\/v2\/posts\/535","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wp.unil.ch\/risk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wp.unil.ch\/risk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wp.unil.ch\/risk\/wp-json\/wp\/v2\/users\/1341"}],"replies":[{"embeddable":true,"href":"https:\/\/wp.unil.ch\/risk\/wp-json\/wp\/v2\/comments?post=535"}],"version-history":[{"count":0,"href":"https:\/\/wp.unil.ch\/risk\/wp-json\/wp\/v2\/posts\/535\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/wp.unil.ch\/risk\/wp-json\/wp\/v2\/media\/887"}],"wp:attachment":[{"href":"https:\/\/wp.unil.ch\/risk\/wp-json\/wp\/v2\/media?parent=535"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wp.unil.ch\/risk\/wp-json\/wp\/v2\/categories?post=535"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wp.unil.ch\/risk\/wp-json\/wp\/v2\/tags?post=535"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}