{"id":12344,"date":"2013-02-10T23:59:22","date_gmt":"2013-02-10T23:59:22","guid":{"rendered":"http:\/\/cimss.ssec.wisc.edu\/satellite-blog\/?p=12344"},"modified":"2013-02-11T20:08:38","modified_gmt":"2013-02-11T20:08:38","slug":"kelvin-helmholtz-billows-a-satellite-signature-of-turbulence-potentital","status":"publish","type":"post","link":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/archives\/12344","title":{"rendered":"Kelvin-Helmholtz billows: a satellite signature of turbulence potentital?"},"content":{"rendered":"<div style=\"width: 490px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2013\/02\/130210_modis_vis_ir_wv_turbulence_anim.gif\"><img decoding=\"async\" alt=\"\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2013\/02\/130210_modis_vis_ir_wv_turbulence_anim.gif\" width=\"480\" height=\"360 alt=\" \/><\/a><p class=\"wp-caption-text\">MODIS 0.65 \u00c2\u00b5m visible, 11.0 \u00c2\u00b5m IR, and 6.7 \u00c2\u00b5m water vapor channel images<\/p><\/div>\n<p>A comparison of AWIPS images of 1-km resolution MODIS 0.65 \u00c2\u00b5m visible channel, 11.0 \u00c2\u00b5m IR channel, and 6.7 \u00c2\u00b5m water channel data <strong><em>(above)<\/em><\/strong> revealed subtle Kelvin-Helmholtz (K-H) billow features across parts of eastern Iowa on <a title=\"10 February 2013 daily weather map\" href=\"http:\/\/www.hpc.ncep.noaa.gov\/dailywxmap\/index_20130210.html\"><strong>10 February 2013<\/strong><\/a> that were only apparent in the water vapor imagery. In the vicinity of these elongated mesoscale wave signatures, there were a few pilot reports of light to moderate turbulence (primarily within the 14,000-21,000 foot altitude range).<\/p>\n<p>An animation of 4-km resolution GOES-13 6.5 \u00c2\u00b5m water vapor images <strong><em>(below)<\/em><\/strong> did not show any evidence of these K-H billow features within the dry slot that was wrapping around the center of a large and intense winter storm that was producing blizzard conditions from Nebraska to North Dakota.<\/p>\n<div style=\"width: 490px\" class=\"wp-caption aligncenter\"><a class=\"thumbnail\" href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2013\/02\/130210_g13_wv_IA_anim.gif\"><img loading=\"lazy\" decoding=\"async\" class=\" \" alt=\"GOES-13 6.5 \u00c2\u00b5m water vapor channel images (click image to play animation)\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2013\/02\/US_Water_Vapor_20130210_1901.png\" width=\"480\" height=\"360\" \/><\/a><p class=\"wp-caption-text\">GOES-13 6.5 \u00c2\u00b5m water vapor channel images (click image to play animation)<\/p><\/div>\n<p>A comparison of the 1-km resolution MODIS water vapor image with the corresponding 4-km resolution GOES-13 water vapor image <strong><em>(below)<\/em><\/strong> demonstrated the advantage of improved spatial resolution for the detection of such potentially-important mesoscale features. The slight northwestward shift of features seen on the GOES-13 water vapor image is due to <strong><a title=\"the problem of parallax\" href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/?s=problem+of+parallax\">parallax<\/a><\/strong>.<\/p>\n<div style=\"width: 490px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2013\/02\/130210_modis_g13_wv_IA_anim.gif\"><img loading=\"lazy\" decoding=\"async\" alt=\"MODIS 6.7 \u00c2\u00b5m and GOES-13 6.5 \u00c2\u00b5m water vapor channel images\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2013\/02\/130210_modis_g13_wv_IA_anim.gif\" width=\"480\" height=\"360\" \/><\/a><p class=\"wp-caption-text\">MODIS 6.7 \u00c2\u00b5m and GOES-13 6.5 \u00c2\u00b5m water vapor channel images<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"<p>A comparison of AWIPS images of 1-km resolution MODIS 0.65 \u00c2\u00b5m visible channel, 11.0 \u00c2\u00b5m IR channel, and 6.7 \u00c2\u00b5m water channel data (above) revealed subtle Kelvin-Helmholtz (K-H) billow features across parts of eastern Iowa on 10 February 2013 that were only apparent in the water vapor imagery. In the vicinity of these elongated mesoscale [&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":[21,11,12],"tags":[],"class_list":["post-12344","post","type-post","status-publish","format-standard","hentry","category-aviation","category-goes-13","category-modis"],"acf":[],"_links":{"self":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/12344","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=12344"}],"version-history":[{"count":8,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/12344\/revisions"}],"predecessor-version":[{"id":12353,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/12344\/revisions\/12353"}],"wp:attachment":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media?parent=12344"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/categories?post=12344"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/tags?post=12344"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}