{"id":4103,"date":"2018-11-20T11:23:43","date_gmt":"2018-11-20T10:23:43","guid":{"rendered":"http:\/\/wp.unil.ch\/risk\/?p=4103"},"modified":"2023-12-06T11:03:09","modified_gmt":"2023-12-06T10:03:09","slug":"inspection-of-the-brenva-spur-mt-blanc-italy","status":"publish","type":"post","link":"https:\/\/wp.unil.ch\/risk\/inspection-of-the-brenva-spur-mt-blanc-italy\/","title":{"rendered":"Inspection of the Brenva spur (Mt Blanc, Italy)"},"content":{"rendered":"<p>In collaboration with the Fondazione Montagna Sicura, Michel Jaboyedoff, Antoine Guerin and Li Fei went to Entr\u00e8ves (Aosta Valley, Italy) on 23 October 2018 to investigate the 1997 Brenva rockslide scar (3\u2019870 m, Mont-Blanc massif), which reactivated in September 2016. A helicopter flight of about 25 minutes allowed acquiring hundreds of pictures (digital and thermal) of the rock mass in exceptional conditions, as the high mountain was dry in late autumn 2018. A high-resolution Structure-from-Motion model was then generated using these pictures, allowing us to analyze in detail the structural features and rockfall activity of the Sperone della Brenva.<\/p>\n<p style=\"text-align: center\"><a href=\"https:\/\/wp.unil.ch\/risk\/files\/2019\/04\/picturemessage_vjakxnml.xm4_.png\"><img alt=\"\" loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-4106 aligncenter\" src=\"https:\/\/wp.unil.ch\/risk\/files\/2019\/04\/picturemessage_vjakxnml.xm4_-300x225.png\" alt=\"\" width=\"300\" height=\"225\" srcset=\"https:\/\/wp.unil.ch\/risk\/files\/2019\/04\/picturemessage_vjakxnml.xm4_-300x225.png 300w, https:\/\/wp.unil.ch\/risk\/files\/2019\/04\/picturemessage_vjakxnml.xm4_-768x576.png 768w, https:\/\/wp.unil.ch\/risk\/files\/2019\/04\/picturemessage_vjakxnml.xm4_-1024x768.png 1024w, https:\/\/wp.unil.ch\/risk\/files\/2019\/04\/picturemessage_vjakxnml.xm4_.png 1600w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><em>View of the Mt BLanc and Brenva spur<\/em><a href=\"https:\/\/wp.unil.ch\/risk\/files\/2019\/04\/picturemessage_p5svlv1j.gbj_.png\"><br \/>\n<img alt=\"\" loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-4105 aligncenter\" src=\"https:\/\/wp.unil.ch\/risk\/files\/2019\/04\/picturemessage_p5svlv1j.gbj_-300x225.png\" alt=\"\" width=\"300\" height=\"225\" srcset=\"https:\/\/wp.unil.ch\/risk\/files\/2019\/04\/picturemessage_p5svlv1j.gbj_-300x225.png 300w, https:\/\/wp.unil.ch\/risk\/files\/2019\/04\/picturemessage_p5svlv1j.gbj_-768x576.png 768w, https:\/\/wp.unil.ch\/risk\/files\/2019\/04\/picturemessage_p5svlv1j.gbj_-1024x768.png 1024w, https:\/\/wp.unil.ch\/risk\/files\/2019\/04\/picturemessage_p5svlv1j.gbj_.png 1600w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p style=\"text-align: center\"><a href=\"https:\/\/wp.unil.ch\/risk\/files\/2019\/04\/Brenva.png\"><img alt=\"\" loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-4114\" src=\"https:\/\/wp.unil.ch\/risk\/files\/2019\/04\/Brenva-300x285.png\" alt=\"\" width=\"300\" height=\"285\" srcset=\"https:\/\/wp.unil.ch\/risk\/files\/2019\/04\/Brenva-300x285.png 300w, https:\/\/wp.unil.ch\/risk\/files\/2019\/04\/Brenva-768x729.png 768w, https:\/\/wp.unil.ch\/risk\/files\/2019\/04\/Brenva-1024x972.png 1024w, https:\/\/wp.unil.ch\/risk\/files\/2019\/04\/Brenva.png 1264w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><br \/>\n<em>3D point cloud model obtained by photogrammetry<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>In collaboration with the Fondazione Montagna Sicura, Michel Jaboyedoff, Antoine Guerin and Li Fei went to Entr\u00e8ves (Aosta Valley, Italy) on 23 October 2018 to investigate the 1997 Brenva rockslide &hellip; <\/p>\n","protected":false},"author":1405,"featured_media":0,"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":[1,81],"tags":[75193,75123,75163,75140],"class_list":{"0":"post-4103","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-blog","7":"category-news","8":"tag-75193","9":"tag-monitoring","10":"tag-photogrammetry","11":"tag-rock-slope"},"_links":{"self":[{"href":"https:\/\/wp.unil.ch\/risk\/wp-json\/wp\/v2\/posts\/4103","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\/1405"}],"replies":[{"embeddable":true,"href":"https:\/\/wp.unil.ch\/risk\/wp-json\/wp\/v2\/comments?post=4103"}],"version-history":[{"count":1,"href":"https:\/\/wp.unil.ch\/risk\/wp-json\/wp\/v2\/posts\/4103\/revisions"}],"predecessor-version":[{"id":5945,"href":"https:\/\/wp.unil.ch\/risk\/wp-json\/wp\/v2\/posts\/4103\/revisions\/5945"}],"wp:attachment":[{"href":"https:\/\/wp.unil.ch\/risk\/wp-json\/wp\/v2\/media?parent=4103"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wp.unil.ch\/risk\/wp-json\/wp\/v2\/categories?post=4103"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wp.unil.ch\/risk\/wp-json\/wp\/v2\/tags?post=4103"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}