{"id":1787782,"date":"2019-09-20T10:30:42","date_gmt":"2019-09-20T14:30:42","guid":{"rendered":"https:\/\/www.maproomblog.com\/?p=1787782"},"modified":"2019-09-20T09:26:22","modified_gmt":"2019-09-20T13:26:22","slug":"himalayan-ice-loss-measured-with-cold-war-spy-photos","status":"publish","type":"post","link":"https:\/\/www.maproomblog.com\/2019\/09\/himalayan-ice-loss-measured-with-cold-war-spy-photos\/","title":{"rendered":"Himalayan Ice Loss Measured with Cold War Spy Photos"},"content":{"rendered":"<div class=\"sketchfab-embed-wrapper\">\n<p><iframe loading=\"lazy\" title=\"A 3D model\" src=\"https:\/\/sketchfab.com\/models\/f0214b7de4c444d2a6478db9b302c9f7\/embed\" width=\"600\" height=\"450\" frameborder=\"0\"><\/iframe><\/p>\n<p style=\"font-size: 13px; font-weight: normal; margin: 5px; color: #4a4a4a;\"><a style=\"font-weight: bold; color: #1caad9;\" href=\"https:\/\/sketchfab.com\/3d-models\/nepal-sikkim-in-1975-f0214b7de4c444d2a6478db9b302c9f7?utm_medium=embed&amp;utm_source=website&amp;utm_campaign=share-popup\" target=\"_blank\" rel=\"noopener noreferrer\">nepal-sikkim in 1975<\/a> by <a style=\"font-weight: bold; color: #1caad9;\" href=\"https:\/\/sketchfab.com\/maurer?utm_medium=embed&amp;utm_source=website&amp;utm_campaign=share-popup\" target=\"_blank\" rel=\"noopener noreferrer\">glaciers<\/a> on <a style=\"font-weight: bold; color: #1caad9;\" href=\"https:\/\/sketchfab.com?utm_medium=embed&amp;utm_source=website&amp;utm_campaign=share-popup\" target=\"_blank\" rel=\"noopener noreferrer\">Sketchfab<\/a><\/p>\n<\/div>\n<p>Satellite imagery only goes back so far. To measure the rate of ice loss across the Himalayan glaciers, researchers turned to recently declassified spy satellite photos from 1975. The photos were used to create a digital elevation model (above) which was compared with more recent data. <a href=\"https:\/\/advances.sciencemag.org\/content\/5\/6\/eaav7266\">They concluded<\/a> that the rate of ice loss was accelerating: it was twice as much from 2000 to 2016 than it was from 1975 to 2000. <a href=\"https:\/\/blogs.ei.columbia.edu\/2019\/06\/19\/melting-himalayan-glaciers-doubled\/\">Columbia University<\/a>, <a href=\"https:\/\/advances.sciencemag.org\/content\/5\/6\/eaav7266\"><em>Science News<\/em><\/a>. [<a href=\"https:\/\/www.geographyrealm.com\/himalayan-glacier-melt-captured-in-old-spy-images\/\">Geography Realm<\/a>]<\/p>\n","protected":false},"excerpt":{"rendered":"<p>nepal-sikkim in 1975 by glaciers on Sketchfab Satellite imagery only goes back so far. To measure the rate of ice loss across the Himalayan glaciers, researchers turned to recently declassified spy satellite photos from 1975.&hellip; <a href=\"https:\/\/www.maproomblog.com\/2019\/09\/himalayan-ice-loss-measured-with-cold-war-spy-photos\/\">More<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"link","meta":{"autoblue_enabled":true,"autoblue_custom_message":"","autoblue_shares":[],"autoblue_post_url":"","_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[8],"tags":[14,994,879,1388,387,1389,177,1390],"class_list":["post-1787782","post","type-post","status-publish","format-link","hentry","category-weather-and-climate","tag-climate-change","tag-glaciers","tag-global-warming","tag-himalaya","tag-india","tag-nepal","tag-satellite-imagery","tag-sikkim","post_format-post-format-link"],"jetpack_featured_media_url":"","jetpack-related-posts":[{"id":1787543,"url":"https:\/\/www.maproomblog.com\/2019\/08\/mapping-the-flow-of-antarctic-ice\/","url_meta":{"origin":1787782,"position":0},"title":"Mapping the Flow of Antarctic Ice","author":"Jonathan Crowe","date":"1 August 2019","format":"image","excerpt":"This is a map of Antarctic surface ice velocity: the speed at which glaciers flow. It was produced by researchers at the University of California Irvine and the Jet Propulsion Laboratory, using radar interferometry and multiple satellite passes to produce a map 10 times more accurate than previous maps. More:\u2026","rel":"","context":"In &quot;Weather and Climate&quot;","block_context":{"text":"Weather and Climate","link":"https:\/\/www.maproomblog.com\/category\/weather-and-climate\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2019\/08\/antarctica-mouginot-1024x830.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2019\/08\/antarctica-mouginot-1024x830.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2019\/08\/antarctica-mouginot-1024x830.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2019\/08\/antarctica-mouginot-1024x830.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":1806124,"url":"https:\/\/www.maproomblog.com\/2022\/02\/alaskan-ice-in-retreat\/","url_meta":{"origin":1787782,"position":1},"title":"Alaskan Ice in Retreat","author":"Jonathan Crowe","date":"24 February 2022","format":"link","excerpt":"https:\/\/youtu.be\/jxDAHaw1Iqc This NASA Earth Observatory video looks at the retreat of Alaska\u2019s Columbia Glacier since 1986. Transcript here.","rel":"","context":"In &quot;Geology&quot;","block_context":{"text":"Geology","link":"https:\/\/www.maproomblog.com\/category\/geology\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/img.youtube.com\/vi\/jxDAHaw1Iqc\/0.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":5507,"url":"https:\/\/www.maproomblog.com\/2017\/10\/mapping-glacial-retreat\/","url_meta":{"origin":1787782,"position":2},"title":"Mapping Glacial Retreat","author":"Jonathan Crowe","date":"25 October 2017","format":"link","excerpt":"Using elevation data from stereo satellite observations, David Shean is mapping the retreat of some 1,200 mountain glaciers in the continental United States. \"Until recently, glaciers in the United States have been measured in two ways: placing stakes in the snow, as federal scientists have done each year since 1957\u2026","rel":"","context":"In &quot;Weather and Climate&quot;","block_context":{"text":"Weather and Climate","link":"https:\/\/www.maproomblog.com\/category\/weather-and-climate\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2017\/10\/mt-rainier-elevation-1024x948.jpg?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2017\/10\/mt-rainier-elevation-1024x948.jpg?resize=350%2C200 1x, https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2017\/10\/mt-rainier-elevation-1024x948.jpg?resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2017\/10\/mt-rainier-elevation-1024x948.jpg?resize=700%2C400 2x"},"classes":[]},{"id":5745,"url":"https:\/\/www.maproomblog.com\/2017\/11\/new-maps-show-greenlands-glaciers-at-risk\/","url_meta":{"origin":1787782,"position":3},"title":"New Maps Show Greenland&#8217;s Glaciers at Risk","author":"Jonathan Crowe","date":"8 November 2017","format":"link","excerpt":"NASA's Jet Propulsion Laboratory: \"New maps of Greenland's coastal seafloor and bedrock beneath its massive ice sheet show that two to four times as many coastal glaciers are at risk of accelerated melting as previously thought.\u00a0Researchers at the University of California at Irvine (UCI), NASA and 30 other institutions have\u00a0published\u2026","rel":"","context":"In &quot;Weather and Climate&quot;","block_context":{"text":"Weather and Climate","link":"https:\/\/www.maproomblog.com\/category\/weather-and-climate\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2017\/11\/greenland-glaciers-300x254.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":1787710,"url":"https:\/\/www.maproomblog.com\/2019\/09\/five-new-islands-charted-off-novaya-zemlya\/","url_meta":{"origin":1787782,"position":4},"title":"Five New Islands Charted Off Novaya Zemlya","author":"Jonathan Crowe","date":"5 September 2019","format":"link","excerpt":"Climate change means retreating glaciers, which exposes new islands, which means new maps. BBC News reports that five new islands off the northeast coast of Novaya Zemlya, an archipelago in the Russian Arctic that was the site of hundreds of nuclear tests, were mapped by a Russian expedition. The islands\u2026","rel":"","context":"In &quot;Weather and Climate&quot;","block_context":{"text":"Weather and Climate","link":"https:\/\/www.maproomblog.com\/category\/weather-and-climate\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":1788123,"url":"https:\/\/www.maproomblog.com\/2019\/12\/tom-pattersons-map-of-prince-william-sound\/","url_meta":{"origin":1787782,"position":5},"title":"Tom Patterson&#8217;s Map of Prince William Sound","author":"Jonathan Crowe","date":"3 December 2019","format":"link","excerpt":"Tom Patterson\u2019s projects are always worthy of note. His latest is a wall map of Alaska\u2019s Prince William Sound\u2014a physical relief map that, Tom warns, will very soon be out of date: Prince William Sound turned out being the most laborious map that I have ever made. The culprit: climate\u2026","rel":"","context":"In &quot;Weather and Climate&quot;","block_context":{"text":"Weather and Climate","link":"https:\/\/www.maproomblog.com\/category\/weather-and-climate\/"},"img":{"alt_text":"Prince William Sound","src":"https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2019\/12\/patterson-prince-william-sound-1024x814.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2019\/12\/patterson-prince-william-sound-1024x814.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2019\/12\/patterson-prince-william-sound-1024x814.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2019\/12\/patterson-prince-william-sound-1024x814.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.maproomblog.com\/wp-json\/wp\/v2\/posts\/1787782","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.maproomblog.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.maproomblog.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.maproomblog.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.maproomblog.com\/wp-json\/wp\/v2\/comments?post=1787782"}],"version-history":[{"count":4,"href":"https:\/\/www.maproomblog.com\/wp-json\/wp\/v2\/posts\/1787782\/revisions"}],"predecessor-version":[{"id":1787786,"href":"https:\/\/www.maproomblog.com\/wp-json\/wp\/v2\/posts\/1787782\/revisions\/1787786"}],"wp:attachment":[{"href":"https:\/\/www.maproomblog.com\/wp-json\/wp\/v2\/media?parent=1787782"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.maproomblog.com\/wp-json\/wp\/v2\/categories?post=1787782"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.maproomblog.com\/wp-json\/wp\/v2\/tags?post=1787782"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}