{"id":11629,"date":"2012-10-21T23:59:22","date_gmt":"2012-10-21T23:59:22","guid":{"rendered":"http:\/\/cimss.ssec.wisc.edu\/satellite-blog\/?p=11629"},"modified":"2012-10-23T21:53:22","modified_gmt":"2012-10-23T21:53:22","slug":"glacial-silt-blowing-off-the-coast-of-alaska","status":"publish","type":"post","link":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/archives\/11629","title":{"rendered":"Glacial silt blowing off the coast of Alaska"},"content":{"rendered":"
\"GOES-15<\/a>

GOES-15 0.63 \u00c2\u00b5m visible channel images (click image to play animation)<\/p><\/div>\n

As high pressure associated with cold arctic air began to build over the eastern interior of Alaska and the Yukon Territory of Canada, a strong pressure gradient created intense gap winds through the channeled terrain of south-central Alaska on 21 October 2012<\/a><\/strong>. These winds stirred up glacial silt and then carried it down the valleys and toward the coast. GOES-15 0.63 \u00c2\u00b5m visible channel images (above; click image to play animation)<\/strong><\/em> showed the hazy signature of a particularly large airborne plume of glacial silt as it moved offshore over the adjacent offshore waters of the Gulf of Alaska.<\/p>\n

\"Suomi<\/a>

Suomi NPP VIIRS 0.64 \u00c2\u00b5m visible channel images<\/p><\/div>\n

A more detailed view is provided by Suomi NPP VIIRS 0.64 \u00c2\u00b5m visible channel images (above)<\/strong><\/em> and 1.61 \u00c2\u00b5m near-IR “snow\/ice channel” images (below)<\/strong><\/em>. The largest glacial silt plume was blowing southward out of the Copper River valley (just east of Cordova, station identifier PACV)<\/em> and across Prince William Sound toward Middleton Island (station identifier PAMD)<\/em>. Additional smaller glacial silt plumes could be seen farther east on the 20:08 UTC image, in the vicinity of Yakutat (station identifier PAYA)<\/em>. On the previous day (20 October),<\/em> northeasterly surface winds gusted to 28 mph at Middleton Island and 20 knots at Cordova — however, the gap winds emerging from the Cooper River valley were likely much stronger.<\/p>\n

\"Suomi<\/a>

Suomi NPP VIIRS 1.61 \u00c2\u00b5m “snow\/ice channel” images<\/p><\/div>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

As high pressure associated with cold arctic air began to build over the eastern interior of Alaska and the Yukon Territory of Canada, a strong pressure gradient created intense gap winds through the channeled terrain of south-central Alaska on 21 October 2012. These winds stirred up glacial silt and then carried it down the valleys […]<\/p>\n","protected":false},"author":18,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[37,10,43,49,48],"tags":[],"class_list":["post-11629","post","type-post","status-publish","format-standard","hentry","category-arctic","category-general-interpretation","category-goes-15","category-suomi_npp","category-viirs"],"acf":[],"_links":{"self":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/11629","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/users\/18"}],"replies":[{"embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/comments?post=11629"}],"version-history":[{"count":9,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/11629\/revisions"}],"predecessor-version":[{"id":11639,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/11629\/revisions\/11639"}],"wp:attachment":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media?parent=11629"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/categories?post=11629"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/tags?post=11629"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}