{"id":9372,"date":"2011-12-15T23:59:44","date_gmt":"2011-12-15T23:59:44","guid":{"rendered":"http:\/\/cimss.ssec.wisc.edu\/satellite-blog\/?p=9372"},"modified":"2011-12-16T23:40:09","modified_gmt":"2011-12-16T23:40:09","slug":"cloud-streets-and-ice-across-hudson-bay-canada","status":"publish","type":"post","link":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/archives\/9372","title":{"rendered":"Cloud streets and ice across Hudson Bay, Canada"},"content":{"rendered":"<div style=\"width: 489px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2011\/12\/111215_modis_truecolor_falsecolor_hudsonbay_anim.gif\"><img loading=\"lazy\" decoding=\"async\" class=\" \" title=\"MODIS true color RGB image + MODIS false color RGB image\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2011\/12\/111215_modis_truecolor_falsecolor_hudsonbay_anim.gif\" alt=\"MODIS true color RGB image + MODIS false color RGB image\" width=\"479\" height=\"370\" \/><\/a><p class=\"wp-caption-text\">MODIS true color RGB image + MODIS false color RGB image<\/p><\/div>\n<p>A comparison of a MODIS true color Red\/Green\/Blue (RGB) image with the corresponding MODIS false color RGB image of Hudson Bay, Canada on <a title=\"15 December 2011 daily weather map\" href=\"http:\/\/www.hpc.ncep.noaa.gov\/dailywxmap\/index_20111215.html\"><strong>15 December 2011<\/strong><\/a> <em><strong>(above)<\/strong><\/em> revealed the following: (1) most of the northern and western portions of Hudson Bay were ice-covered <em>(the ice appeared bright white on the true color image, and darker shades of red on the false color image)<\/em> and (2) thee false color image made it easier to discriminate between the ice <em>(darker red)<\/em> and a diverging pattern of supercooled water cloud streets <em>(white to cyan colored features)<\/em> which were aligned in the direction of strong boundary layer winds in the wake of a cold frontal passage. The horizontal convective rolls that created these cloud streets may have also contained significant amounts of blowing snow.<\/p>\n<p>AWIPS images of MODIS false color RGB images with overlays of METAR surface reports <em><strong>(below)<\/strong><\/em> showed that winds were gusting as high as 33 to 38 knots at stations along the western edge of Hudson Bay.<\/p>\n<div style=\"width: 490px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2011\/12\/111215_modis_rgb_hudson_bay_anim.gif\"><img loading=\"lazy\" decoding=\"async\" title=\"MODIS Red\/Green\/Blue (RGB) false color images\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2011\/12\/111215_modis_rgb_hudson_bay_anim.gif\" alt=\"MODIS Red\/Green\/Blue (RGB) false color images\" width=\"480\" height=\"381\" \/><\/a><p class=\"wp-caption-text\">MODIS Red\/Green\/Blue (RGB) false color images<\/p><\/div>\n<p>McIDAS images of GOES-13 0.63 \u00c2\u00b5m visible channel data <em><strong>(below)<\/strong><\/em> showed that the strong winds were acting to move large portions of the ice, which according to the <a title=\"Canadian Ice Service ice analysis chart\" href=\"http:\/\/ice-glaces.ec.gc.ca\/prods\/WIS54SD\/20111212180000_WIS54SD_0006179323.gif\"><strong>Canadian Ice Service<\/strong><\/a> was still fairly young &#8220;gray&#8221; <em>(5-15 cm thick)<\/em> to &#8220;gray-white&#8221; <em>(15-30 cm thick)<\/em> ice.<\/p>\n<div style=\"width: 490px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2011\/12\/111215_g13_vis_hudson_bay_anim.gif\"><img loading=\"lazy\" decoding=\"async\" title=\"GOES-13 0.63 \u00c2\u00b5m visible channel images\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2011\/12\/111215_g13_vis_hudson_bay_anim.gif\" alt=\"GOES-13 0.63 \u00c2\u00b5m visible channel images\" width=\"480\" height=\"360\" \/><\/a><p class=\"wp-caption-text\">GOES-13 0.63 \u00c2\u00b5m visible channel images<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"<p>A comparison of a MODIS true color Red\/Green\/Blue (RGB) image with the corresponding MODIS false color RGB image of Hudson Bay, Canada on 15 December 2011 (above) revealed the following: (1) most of the northern and western portions of Hudson Bay were ice-covered (the ice appeared bright white on the true color image, and darker [&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":[37,11,12,45,5],"tags":[],"class_list":["post-9372","post","type-post","status-publish","format-standard","hentry","category-arctic","category-goes-13","category-modis","category-redgreenblue-rgb-images","category-winter-weather"],"acf":[],"_links":{"self":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/9372","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=9372"}],"version-history":[{"count":3,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/9372\/revisions"}],"predecessor-version":[{"id":9374,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/9372\/revisions\/9374"}],"wp:attachment":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media?parent=9372"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/categories?post=9372"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/tags?post=9372"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}