{"id":14349,"date":"2015-01-21T07:55:15","date_gmt":"2015-01-21T07:55:15","guid":{"rendered":"http:\/\/blogs.agu.org\/landslideblog\/?p=14349"},"modified":"2015-01-21T07:55:15","modified_gmt":"2015-01-21T07:55:15","slug":"zanskar-valley-3","status":"publish","type":"post","link":"https:\/\/blogs.agu.org\/landslideblog\/2015\/01\/21\/zanskar-valley-3\/","title":{"rendered":"Zanskar Valley: the location of the landslide"},"content":{"rendered":"<h5>Zanskar Valley landslide<\/h5>\n<p><a href=\"https:\/\/www.ldeo.columbia.edu\/user\/cstark\">Colin Stark<\/a> at <a href=\"https:\/\/www.ldeo.columbia.edu\/\">Columbia University<\/a> has used Landsat 8 images from 1st December 2014 and 18th January 2015 to identify the location of the <a href=\"https:\/\/blogs.agu.org\/landslideblog\/2015\/01\/20\/zanskar-river-landslide-2\/\">landslide<\/a> in the <a href=\"https:\/\/blogs.agu.org\/landslideblog\/2015\/01\/19\/zanskar-valley-1\/\">Zanskar Valley<\/a>, and has kindly sent them to me.\u00a0 This is the January 2015 image, showing the landslide scar and deposit:<\/p>\n<div id=\"attachment_14350\" style=\"width: 650px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/blogs.agu.org\/landslideblog\/files\/2015\/01\/15_01-Zanaskar-5-e1421825084242.jpg\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-14350\" class=\"wp-image-14350 size-full\" src=\"https:\/\/blogs.agu.org\/landslideblog\/files\/2015\/01\/15_01-Zanaskar-5-e1421825084242.jpg\" alt=\"Zanskar\" width=\"640\" height=\"640\" \/><\/a><p id=\"caption-attachment-14350\" class=\"wp-caption-text\">Landsat 8 image courtesy of <a href=\"https:\/\/www.ldeo.columbia.edu\/user\/cstark\">Colin Stark<\/a><\/p><\/div>\n<p>.<\/p>\n<p>The landslide scar deposit can be seen blocking the river in the centre of the image, the source of the landslide is on the southern valley wall. \u00a0 Colin has draped this image on a digital elevation model to generate a perspective view:<\/p>\n<div id=\"attachment_14351\" style=\"width: 650px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/blogs.agu.org\/landslideblog\/files\/2015\/01\/15_01-Zanaskar-6-e1421825357754.jpg\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-14351\" class=\"size-full wp-image-14351\" src=\"https:\/\/blogs.agu.org\/landslideblog\/files\/2015\/01\/15_01-Zanaskar-6-e1421825357754.jpg\" alt=\"Zanskar\" width=\"640\" height=\"522\" \/><\/a><p id=\"caption-attachment-14351\" class=\"wp-caption-text\">Landsat 8 image courtesy of <a href=\"https:\/\/www.ldeo.columbia.edu\/user\/cstark\">Colin Stark<\/a><\/p><\/div>\n<p>.<\/p>\n<p>The landslide source and deposit are indicated on the above image.\u00a0 From this Colin has a location: 33.29N, \u00a077.286E, which is on the Tsarap River.\u00a0 The calculated surface area of the source zone is about 140,000 square metres, and of the deposit is about 90,000 square metres.\u00a0 If we assume an average deposit thickness of 30 m (and note that is a big assumption), we get a ballpark figure of about 2.7 million cubic metres.\u00a0 This is quite a large landslide.\u00a0 So this is the slope that failed, as shown in Google Earth imagery from 290th June 2014:<\/p>\n<div id=\"attachment_14352\" style=\"width: 650px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/blogs.agu.org\/landslideblog\/files\/2015\/01\/15_01-Zanaskar-7-e1421826279460.jpg\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-14352\" class=\"size-full wp-image-14352\" src=\"https:\/\/blogs.agu.org\/landslideblog\/files\/2015\/01\/15_01-Zanaskar-7-e1421826279460.jpg\" alt=\"Zanskar\" width=\"640\" height=\"396\" \/><\/a><p id=\"caption-attachment-14352\" class=\"wp-caption-text\">Google Earth image of the Zanskar landslide site<\/p><\/div>\n<p>.<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<!-- AddThis Advanced Settings generic via filter on the_content --><!-- AddThis Share Buttons generic via filter on the_content -->","protected":false},"excerpt":{"rendered":"<p>Colin Stark at Columbia University has located the landslide in the Zanskar valley using Landsat 8 imagery<!-- AddThis Advanced Settings generic via filter on wp_trim_excerpt --><!-- AddThis Share Buttons generic via filter on wp_trim_excerpt --><\/p>\n","protected":false},"author":22,"featured_media":14351,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[469,5,15,959,688,823],"class_list":["post-14349","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-landslide-report","tag-featured","tag-india","tag-landslide-dam","tag-landslide-report","tag-valley-blocking-landslide","tag-zanskar"],"_links":{"self":[{"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/posts\/14349","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/users\/22"}],"replies":[{"embeddable":true,"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/comments?post=14349"}],"version-history":[{"count":0,"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/posts\/14349\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/media\/14351"}],"wp:attachment":[{"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/media?parent=14349"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/categories?post=14349"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/tags?post=14349"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}