{"id":2568,"date":"2009-05-13T23:59:01","date_gmt":"2009-05-13T23:59:01","guid":{"rendered":"http:\/\/cimss.ssec.wisc.edu\/satellite-blog\/?p=2568"},"modified":"2009-05-22T01:49:49","modified_gmt":"2009-05-22T01:49:49","slug":"goes-11-super-rapid-scan-operations-srso-images-2","status":"publish","type":"post","link":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/archives\/2568","title":{"rendered":"GOES-11 Super Rapid Scan Operations (SRSO) images"},"content":{"rendered":"
\"GOES-11<\/a>

GOES-11 SRSO visible images<\/p><\/div>\n

The GOES-11 satellite was once again placed into Super Rapid Scan Operations (SRSO) on 13 May 2009<\/strong>, providing images as frequently as every 1 minute during portions of the late afternoon and early evening hours. The GOES-11 visible channel imagery (above; <\/strong>also available as a QuickTime animation<\/a>)<\/strong><\/em> shows the explosive development of severe convection along a dryline in Oklahoma, Kansas, and Missouri. According to the SPC Storm Reports<\/strong><\/a>, this line of storms produced several tornadoes, hail up to 2.75 inch in diameter, and wind gusts to 80 mph.<\/p>\n

GOES-11 10.7 \u00c2\u00b5m IR imagery (below; <\/strong>also available as a QuickTime animation<\/a>)<\/strong><\/em> revealed that the cloud top temperatures quickly cooled to values of -60\u00c2\u00ba to -70\u00c2\u00ba C (red to black colors)<\/em> as these thunderstorms developed and intensified.<\/p>\n

\"GOES-11<\/a>

GOES-11 10.7 \u00c2\u00b5m IR images<\/p><\/div>\n

The plot of the coldest GOES-11 IR brightness temperatures (below)<\/strong><\/em> for the initial (and largest)\u00c2\u00a0 storm that formed in eastern Kansas\u00c2\u00a0 <\/strong><\/em>shows that the minimum cloud top temperatures cooled to within a few degrees of the -64\u00c2\u00ba C tropopause temperature (taken from the Topeka, Kansas rawinsonde report<\/strong><\/a>) after around 22:00 UTC. It is interesting to note that there was a slight cloud top temperature warming<\/strong> seen at 22:45 UTC — which is about 7 minutes prior to the first reported tornado from that particular storm. If this type of “pre-tornado cloud top temperature warming” signal is something that frequently occurs, then having access to satellite imagery at a high temporal resolution will be critical to utilizing any possible predictive value of such a signal.<\/p>\n

\"Plot<\/a>

Plot of GOES-11 10.7 \u00c2\u00b5m IR brightness temperatures<\/p><\/div>\n

A comparison of the 4-km resolution GOES-11 10.7 \u00c2\u00b5m and the 1-km resolution NOAA-15 10.8 \u00c2\u00b5m IR images (below)<\/strong><\/em> demonstrates the value of higher spatial resolution: a clear “enhanced-v” signature was seen on the NOAA-15 image, while no such signature was obvious on the GOES-11 image. Note that the minimum cloud top brightness temperature in the overshooting top region was 15\u00c2\u00ba C colder<\/strong> on the NOAA-15 IR image. Also, due to the large satellite viewing angle from the GOES-11 satellite (the satellite zenith angle for Topeka, Kansas is 61 degrees),<\/em> a significant parallax shift was apparent with this particular storm — the overshooting top region was displaced farther to the northeast of Emporia, Kansas (KEMP) on the GOES-11 IR image.<\/p>\n

\"GOES-11<\/a>

GOES-11 10.7 \u00c2\u00b5m and NOAA-15 10.8 \u00c2\u00b5m IR images<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"

The GOES-11 satellite was once again placed into Super Rapid Scan Operations (SRSO) on 13 May 2009, providing images as frequently as every 1 minute during portions of the late afternoon and early evening hours. The GOES-11 visible channel imagery (above; also available as a QuickTime animation) shows the explosive development of severe convection along […]<\/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":[22,18,26,3],"tags":[],"class_list":["post-2568","post","type-post","status-publish","format-standard","hentry","category-avhrr","category-goes-11","category-poes","category-severe-convection"],"acf":[],"_links":{"self":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/2568","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=2568"}],"version-history":[{"count":8,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/2568\/revisions"}],"predecessor-version":[{"id":2571,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/2568\/revisions\/2571"}],"wp:attachment":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media?parent=2568"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/categories?post=2568"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/tags?post=2568"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}