{"id":12014,"date":"2012-12-18T23:59:21","date_gmt":"2012-12-18T23:59:21","guid":{"rendered":"http:\/\/cimss.ssec.wisc.edu\/satellite-blog\/?p=12014"},"modified":"2012-12-20T03:35:06","modified_gmt":"2012-12-20T03:35:06","slug":"ice-motion-in-the-bering-sea-off-the-coast-of-alaska","status":"publish","type":"post","link":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/archives\/12014","title":{"rendered":"Ice motion in the Bering Sea off the coast of Alaska"},"content":{"rendered":"<div style=\"width: 490px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2012\/12\/N_Pac_Sfc_Anal_20121219_0000.png\"><img loading=\"lazy\" decoding=\"async\" alt=\"Suomi NPP VIIRS 0.7 \u00c2\u00b5m Day\/Night Band image with overlay of surface analysis\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2012\/12\/N_Pac_Sfc_Anal_20121219_0000.png\" width=\"480\" height=\"426\" \/><\/a><p class=\"wp-caption-text\">Suomi NPP VIIRS 0.7 \u00c2\u00b5m Day\/Night Band image with overlay of surface analysis<\/p><\/div>\n<p>A large and intense area of low pressure was located in the Gulf of Alaska on 18 December 2012 <strong><em>(above),<\/em><\/strong> which was forecast to produce areas of hurricane-force winds west and southwest of the storm center.<\/p>\n<p>A comparison of AWIPS images of Suomi NPP VIIRS 0.7 \u00c2\u00b5m Day\/Night Band images <strong><em>(below)<\/em><\/strong> revealed a large amount of Bering Sea ice motion just off the southwest coast of Alaska in the 101 minutes between the two images (21:59 UTC and 23:40 UTC), due to the strong northwesterly winds of 30-40 knots that had existed over that region.<\/p>\n<div style=\"width: 490px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2012\/12\/121218_suomi_npp_viirs_dnb_ice_ak_anim.gif\"><img loading=\"lazy\" decoding=\"async\" alt=\"Suomi NPP VIIRS 0.7 \u00c2\u00b5m Day\/Night Band images with surface observations and GOES cloud-tracked atmospheric motion vectors\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2012\/12\/121218_suomi_npp_viirs_dnb_ice_ak_anim.gif\" width=\"480\" height=\"426\" \/><\/a><p class=\"wp-caption-text\">Suomi NPP VIIRS 0.7 \u00c2\u00b5m Day\/Night Band images with surface observations and GOES cloud-tracked atmospheric motion vectors<\/p><\/div>\n<p>The image comparison below shows false-color Red\/Green\/Blue (RGB) composites created using the 0.64 \u00c2\u00b5m VIIRS visible channel (Red) and the 1.61 \u00c2\u00b5m &#8220;snow\/ice channel&#8221; (Green and Blue) which allowed an easier discrimination between the ice <em>(which appeared as darker shades of red)<\/em> and supercooled water droplet clouds <em>(which appeared as shades of white)<\/em>.<\/p>\n<div style=\"width: 490px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2012\/12\/121218_suomi_npp_viirs_rgb_ice_ak_anim.gif\"><img loading=\"lazy\" decoding=\"async\" alt=\"Suomi NPP VIIRS false-color Red\/Green\/Blue (RGB) images\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2012\/12\/121218_suomi_npp_viirs_rgb_ice_ak_anim.gif\" width=\"480\" height=\"427\" \/><\/a><p class=\"wp-caption-text\">Suomi NPP VIIRS false-color Red\/Green\/Blue (RGB) images<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"<p>A large and intense area of low pressure was located in the Gulf of Alaska on 18 December 2012 (above), which was forecast to produce areas of hurricane-force winds west and southwest of the storm center. A comparison of AWIPS images of Suomi NPP VIIRS 0.7 \u00c2\u00b5m Day\/Night Band images (below) revealed a large amount [&hellip;]<\/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":[37,45,25,49,48],"tags":[],"class_list":["post-12014","post","type-post","status-publish","format-standard","hentry","category-arctic","category-redgreenblue-rgb-images","category-satellite-winds","category-suomi_npp","category-viirs"],"acf":[],"_links":{"self":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/12014","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=12014"}],"version-history":[{"count":5,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/12014\/revisions"}],"predecessor-version":[{"id":12018,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/12014\/revisions\/12018"}],"wp:attachment":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media?parent=12014"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/categories?post=12014"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/tags?post=12014"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}