{"id":573,"date":"2007-11-20T23:01:25","date_gmt":"2007-11-20T23:01:25","guid":{"rendered":"http:\/\/cimss.ssec.wisc.edu\/satellite-blog\/archives\/573"},"modified":"2008-08-13T15:37:27","modified_gmt":"2008-08-13T15:37:27","slug":"wave-structure-on-top-of-a-stratus-cloud-deck","status":"publish","type":"post","link":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/archives\/573","title":{"rendered":"Wave structure on top of a stratus cloud deck"},"content":{"rendered":"

\"GOES-12<\/a><\/p>\n

GOES-12 visible channel images (above)<\/strong><\/em> revealed
\n an interesting wave structure along the top of an extensive stratus cloud deck
\n that covered much of Iowa, southern Wisconsin, and northern Illinois on 20
\n November 2007<\/strong>. An AWIPS 4-panel image showing the MODIS and GOES-12
\n visible and IR window channels (below)<\/strong><\/em> demonstrated
\n the better wave detection capabilities of the higher spatial resolution MODIS
\n data. The GOES-12 and MODIS IR brightness temperatures in the region of the
\n wave signatures were generally in the +1\u00c2\u00baC to +5\u00c2\u00baC range, with the GOES
\n Sounder Cloud Top Height<\/strong><\/a> indicating tops around 4700 feet in that
\n area (tan enhancement)<\/em>; the MODIS
\n Cloud Phase product<\/strong><\/a> confirmed that the cloud in that region was
\n likely composed of supercooled water droplets (blue enhancement)<\/em>.<\/p>\n

\"MODIS<\/a><\/p>\n

=============================================<\/p>\n

\"GOES-12<\/a><\/p>\n

Much of the wave structure on satellite imagery seemed to be located along
\n a southwest-to-northeast oriented baroclinic zone<\/strong> (indicated
\n by a tighter packing of the 850 mb isotherms)<\/em>, with the individual banding
\n elements oriented generally perpendicular<\/em> to the axis of the baroclinic
\n zone (above)<\/strong><\/em>; however, radar echoes that developed
\n a few hours later were generally aligned closer with the axis of the baroclinic
\n zone (below)<\/strong><\/em>. A northwest-to-southeast cross section
\n of NAM12 model output (along
\n line D-D’<\/a> orthogonal to the baroclinic zone axis)<\/strong> revealed elevated
\n pockets of frontogenesis<\/strong><\/a> and omega<\/strong><\/a> (within
\n the 600-850 mb layer)<\/em> which may have played a role in the formation of
\n the regions of banding seen on both satellite imagery and radar reflectivity.<\/p>\n

\"Radar<\/a><\/p>\n

=============================================<\/p>\n

\"MODIS<\/a><\/p>\n

A 250-m resolution MODIS true color image (above)<\/strong><\/em> from
\n the SSEC
\n MODIS Today<\/strong><\/a> site shows the cloud top waves in great detail over
\n northeastern Iowa. Note that some of the wave structure and orientation (just
\n south of the Iowa\/Minnesota border) was similar to that seen on the radar images.<\/p>\n","protected":false},"excerpt":{"rendered":"

GOES-12 visible channel images (above) revealed an interesting wave structure along the top of an extensive stratus cloud deck that covered much of Iowa, southern Wisconsin, and northern Illinois on 20 November 2007. An AWIPS 4-panel image showing the MODIS and GOES-12 visible and IR window channels (below) demonstrated the better wave detection capabilities of […]<\/p>\n","protected":false},"author":18,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[10,15,19,12],"tags":[],"class_list":["post-573","post","type-post","status-publish","format-standard","hentry","category-general-interpretation","category-goes-sounder","category-goes-12","category-modis"],"acf":[],"_links":{"self":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/573","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=573"}],"version-history":[{"count":1,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/573\/revisions"}],"predecessor-version":[{"id":702,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/573\/revisions\/702"}],"wp:attachment":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media?parent=573"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/categories?post=573"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/tags?post=573"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}