{"id":63,"date":"2010-07-22T19:58:00","date_gmt":"2010-07-22T19:58:00","guid":{"rendered":"http:\/\/blogs.agu.org\/landslideblog\/2010\/07\/22\/strange-goings-on-at-attabad\/"},"modified":"2010-10-21T13:35:17","modified_gmt":"2010-10-21T17:35:17","slug":"strange-goings-on-at-attabad","status":"publish","type":"post","link":"https:\/\/blogs.agu.org\/landslideblog\/2010\/07\/22\/strange-goings-on-at-attabad\/","title":{"rendered":"Strange goings on at Attabad"},"content":{"rendered":"

The NDMA daily report for today<\/a> (22nd July) reports a dramatic decrease in lake level – 19 inches (48 cm) in the last 24 hours.  This is by far the largest fall recorded to date, producing a lake level the looks like this:<\/p>\n

<\/a><\/div>\n

This is quite surprising.  Assuming that the surface area of the lake is 1202 hectares (in fact it is probably a little larger in reality), this implies that about 5.8 million cubic metres of water has left the lake in the last 24 hours, representing a rate of about 67 cubic metres per second.  However, the reported spillway discharge has not increased substantially – discharge at Ganish Bridge was 20,800 cubic feet per second yesterday and 20,837 cubic feet per second today. <\/p>\n

So what is going on?  Well it could be a measurement error, perhaps of the discharge.  Alternatively it could be that the inflow has dramatically reduced, maybe because the weather has cooled. <\/p>\n

Either way it is a surprising observation. <\/p>\n

Finally, I somehow missed until today this low resolution image published in the Pamir Times <\/a>a few days ago of the dam:<\/p>\n

<\/a><\/div>\n

I am astonished at how much downstream erosion there has been since I last saw an image of the site.

<\/b><\/i>
Comments and thoughts welcome please.<\/b><\/i><\/p>\n","protected":false},"excerpt":{"rendered":"

The NDMA daily report for today (22nd July) reports a dramatic decrease in lake level – 19 inches (48 cm) in the last 24 hours.  This is by far the largest fall recorded to date, producing a lake level the looks like this: This is quite surprising.  Assuming that the surface area of the lake is 1202 hectares (in fact it is probably a little larger in reality), this implies …<\/p>\n","protected":false},"author":22,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_members_access_role":[],"_members_access_error":""},"categories":[1],"tags":[967,47,58,15,10],"class_list":["post-63","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-attabad","tag-barrier-lake","tag-hunza","tag-landslide-dam","tag-pakistan"],"_links":{"self":[{"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/posts\/63","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=63"}],"version-history":[{"count":0,"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/posts\/63\/revisions"}],"wp:attachment":[{"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/media?parent=63"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/categories?post=63"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/tags?post=63"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}