{"id":7830,"date":"2011-04-14T12:13:06","date_gmt":"2011-04-14T12:13:06","guid":{"rendered":"http:\/\/cimss.ssec.wisc.edu\/satellite-blog\/?p=7830"},"modified":"2011-04-14T21:51:06","modified_gmt":"2011-04-14T21:51:06","slug":"von-karman-vortices-south-of-the-aleutian-islands","status":"publish","type":"post","link":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/archives\/7830","title":{"rendered":"Von Karman vortices south of the Aleutian Islands"},"content":{"rendered":"<p style=\"text-align: center;\">&nbsp;<\/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\/04\/110414_poes-avhrr_vis_anim.gif\"><img loading=\"lazy\" decoding=\"async\" class=\" \" title=\"POES AVHRR 0.86 \u00c2\u00b5m visible channel images\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2011\/04\/110414_poes-avhrr_vis_anim.gif\" alt=\"POES AVHRR 0.86 \u00c2\u00b5m visible channel images\" width=\"480\" height=\"459\" \/><\/a><p class=\"wp-caption-text\">POES AVHRR 0.86 \u00c2\u00b5m visible channel images<\/p><\/div>\n<p>AWIPS images of POES AVHRR 0.86 \u00c2\u00b5m visible channel data <em><strong>(above)<\/strong><\/em> revealed a pair of von Karman vortices streaming southward from the Aleutian Islands of Alaska on <strong>14 April 2011<\/strong>. In this 2-image comparison, note that the cloud features were moving, but the ice in the Bering Sea remained stationary.<\/p>\n<p>An overlay of MADIS low-level atmospheric motion vectors (or &#8220;cloud-tracked winds&#8221;) indicated that northerly winds across the region were generally in the 20-30 knot range <em><strong>(below)<\/strong><\/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\/2011\/04\/110414_poes_avhrr_vis_winds_anim.gif\"><img loading=\"lazy\" decoding=\"async\" title=\"POES AVHRR visible images + MADIS atmospheric motion vector winds\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2011\/04\/110414_poes_avhrr_vis_winds_anim.gif\" alt=\"POES AVHRR visible images + MADIS atmospheric motion vector winds\" width=\"480\" height=\"458\" \/><\/a><p class=\"wp-caption-text\">POES AVHRR visible images + MADIS atmospheric motion vector winds<\/p><\/div>\n<div style=\"width: 490px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2011\/04\/110414_poes_avhrr_ctt_anim.gif\"><img loading=\"lazy\" decoding=\"async\" title=\"POES AVHRR Cloud Top Temperature product\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2011\/04\/110414_poes_avhrr_ctt_anim.gif\" alt=\"POES AVHRR Cloud Top Temperature product\" width=\"480\" height=\"459\" \/><\/a><p class=\"wp-caption-text\">POES AVHRR Cloud Top Temperature product<\/p><\/div>\n<p>The corresponding POES AVHRR Cloud Top Temperature (CTT) product images <em><strong>(above)<\/strong><\/em> indicated that CTT values for these von Karman vortex features were generally in the -10 to -15\u00c2\u00ba C range, while POES AVHRR Cloud Top Height (CTH) product images<em><strong> (below)<\/strong><\/em> showed that the tops of the clouds were\u00c2\u00a0 around 1-2 km.<\/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\/04\/110414_poes_avhrr_cloud_height_anim.gif\"><img loading=\"lazy\" decoding=\"async\" title=\"POES AVHRR Cloud Top Height products\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2011\/04\/110414_poes_avhrr_cloud_height_anim.gif\" alt=\"POES AVHRR Cloud Top Height products\" width=\"480\" height=\"459\" \/><\/a><p class=\"wp-caption-text\">POES AVHRR Cloud Top Height products<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"<p>&nbsp; AWIPS images of POES AVHRR 0.86 \u00c2\u00b5m visible channel data (above) revealed a pair of von Karman vortices streaming southward from the Aleutian Islands of Alaska on 14 April 2011. In this 2-image comparison, note that the cloud features were moving, but the ice in the Bering Sea remained stationary. An overlay of MADIS [&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":[37,22,26,25],"tags":[],"class_list":["post-7830","post","type-post","status-publish","format-standard","hentry","category-arctic","category-avhrr","category-poes","category-satellite-winds"],"acf":[],"_links":{"self":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/7830","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=7830"}],"version-history":[{"count":5,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/7830\/revisions"}],"predecessor-version":[{"id":7834,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/7830\/revisions\/7834"}],"wp:attachment":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media?parent=7830"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/categories?post=7830"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/tags?post=7830"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}