{"id":685,"date":"2013-09-26T13:51:16","date_gmt":"2013-09-26T11:51:16","guid":{"rendered":"http:\/\/wp.unil.ch\/risk\/?p=685"},"modified":"2013-09-26T13:52:24","modified_gmt":"2013-09-26T11:52:24","slug":"alain-breguet-et-jerome-dubois-landslide-risk-mapping-in-pakistan-and-nepal-based-on-field-survey-and-modeling-techniques","status":"publish","type":"post","link":"https:\/\/wp.unil.ch\/risk\/alain-breguet-et-jerome-dubois-landslide-risk-mapping-in-pakistan-and-nepal-based-on-field-survey-and-modeling-techniques\/","title":{"rendered":"Alain Breguet et J\u00e9r\u00f4me Dubois: Landslide risk mapping in Pakistan and Nepal based on field survey and modeling techniques."},"content":{"rendered":"<p><em>Alain Breguet et J\u00e9r\u00f4me Dubois<\/em><br \/>\n<em>Co-supervisors:\u00a0Prof. Michel Jaboyedoff, \u00a0Karen Sudmeier-Rieux<\/em><br \/>\n<em>Expert : Andrea Pedrazzini<\/em><br \/>\n<em>Rapporteur : Prof. Fran\u00e7ois Marillier<\/em><\/p>\n<p style=\"text-align: justify\">Himalayan region is characterized by an important density of landslides related to\u00a0earthquake, monsoon rains and the important weathering of the bedrock. Several\u00a0mountain communities are affected by these phenomena. A complete geotechnical\u00a0hazard assessment is often difficult to complete in developing countries due to low\u00a0available funding. In this study, we propose a risk mapping methodology that can be\u00a0quickly applied in order to have a first overview of human risk associated with\u00a0landslides in the Pakistani Kashmir and Dharan region of eastern Nepal.<\/p>\n<p style=\"text-align: justify\">This methodology proposes a quick field survey coupled with an intensive use of\u00a0different types of remote sensing data. The main morphological information is\u00a0collected in the field in order to have an objective analysis of the phenomena. Each\u00a0landslide is mapped with its location, size and state of activity based on cracks and\u00a0vegetation investigation. Participatory mapping with local communities is required to\u00a0gain information and to understand which problems are caused by each landslide and\u00a0to locate relict cracks and landslides. Secondly, modeling based on a digital elevation\u00a0model (DEM) provides other information like a stability index (SINMAP), distance\u00a0calculations and slope analysis.<\/p>\n<p style=\"text-align: justify\">The risk is assessed for buildings and roads with two different calculations. Each\u00a0building receives a susceptibility level and a potential damage value based on the\u00a0characterization of each landslide (frequency, volume, activity). The risk is the\u00a0multiplication of these two values by the number of inhabitants per building. The\u00a0roads are separated into sections below and above landslides. The calculation includes\u00a0the frequency and probability of spatial occurrence of the landslide and different\u00a0characteristics of the road including its length, the number of vehicles per day, vehicle\u00a0speed and occupancy. Four colors are defined to show the amount of risk of each\u00a0building and road section.<\/p>\n<p style=\"text-align: justify\">This methodology is quick, relatively cheap and can be applied in places with\u00a0incomplete datasets. This simple methodology can be integrated into development\u00a0projects by development agencies and local development authorities to consider risk\u00a0due to landslide.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Alain Breguet et J\u00e9r\u00f4me Dubois Co-supervisors:\u00a0Prof. Michel Jaboyedoff, \u00a0Karen Sudmeier-Rieux Expert : Andrea Pedrazzini Rapporteur : Prof. Fran\u00e7ois Marillier Himalayan region is characterized by an important density of landslides related &hellip; <\/p>\n","protected":false},"author":1341,"featured_media":922,"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":[51880],"class_list":{"0":"post-685","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-masters_completed","8":"tag-51880"},"_links":{"self":[{"href":"https:\/\/wp.unil.ch\/risk\/wp-json\/wp\/v2\/posts\/685","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=685"}],"version-history":[{"count":0,"href":"https:\/\/wp.unil.ch\/risk\/wp-json\/wp\/v2\/posts\/685\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/wp.unil.ch\/risk\/wp-json\/wp\/v2\/media\/922"}],"wp:attachment":[{"href":"https:\/\/wp.unil.ch\/risk\/wp-json\/wp\/v2\/media?parent=685"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wp.unil.ch\/risk\/wp-json\/wp\/v2\/categories?post=685"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wp.unil.ch\/risk\/wp-json\/wp\/v2\/tags?post=685"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}