{"id":586,"date":"2007-12-13T23:55:33","date_gmt":"2007-12-13T23:55:33","guid":{"rendered":"http:\/\/cimss.ssec.wisc.edu\/satellite-blog\/archives\/586"},"modified":"2010-05-20T20:44:26","modified_gmt":"2010-05-20T20:44:26","slug":"ice-in-the-upper-midwest","status":"publish","type":"post","link":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/archives\/586","title":{"rendered":"Ice in the Upper Midwest"},"content":{"rendered":"

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

AWIPS images of the MODIS visible and “snow\/ice” channels from 13 December 2007<\/strong><\/a> (above; closer view<\/a>)<\/strong><\/em> reveal that much of the southeastern half of Iowa received a significant glazing of ice (0.25 to 1.0 inch)<\/em> during a freezing drizzle\/freezing rain event on 10-11 December<\/strong><\/a>. Snow and ice particles are very strong absorbers<\/em> at the 1.6 \u00c2\u00b5m wavelength of the MODIS snow\/ice channel [Baum et al., 2000],<\/em> so the thick coating of ice on top of existing snow cover shows up as a very dark<\/em> feature on those images (even darker than adjacent areas to the north which had more snow cover<\/a><\/strong> but did not<\/strong> receive significant amounts of freezing rain).<\/em> In contrast, supercooled water droplet clouds show up as much brighter<\/em> features on the MODIS snow\/ice channel image.<\/p>\n

A false-color RGB composite using the MODIS visible and 1.6 \u00c2\u00b5m images (below)<\/strong><\/em> shows the region of significant ice glazing as the transition to deeper red colors.<\/p>\n

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

A comparison with the MODIS snow\/ice channel image from the previous day (below)<\/strong><\/em> shows that the significant ice accumulation (darker black enhancement)<\/em> also extended to the northeast, covering parts of northern Illinois and extreme southern\/southeastern Wisconsin. It is interesting to compare this event with another case of significant ice glazing that was seen on MODIS imagery in the southern Plains back in February 2002<\/strong><\/a>.<\/p>\n

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

For photos of the ice accumulation in extreme northwestern Missouri, see the website from storm chaser Mike Hollingshead<\/strong><\/a>.<\/p>\n

Reference:<\/strong> Baum, B.A., P.F. Soulen, K.I. Strabala, M.D. King, S.A. Ackerman, W. P. Menzel, and P. Yang: Remote sensing of cloud properties using MODIS airborne simulator imagery during SUCCESS,<\/em> J. Geophys. Res., 105<\/strong>, 11781-11792, 2000.<\/p>\n","protected":false},"excerpt":{"rendered":"

AWIPS images of the MODIS visible and “snow\/ice” channels from 13 December 2007 (above; closer view) reveal that much of the southeastern half of Iowa received a significant glazing of ice (0.25 to 1.0 inch) during a freezing drizzle\/freezing rain event on 10-11 December. Snow and ice particles are very strong absorbers at the 1.6 […]<\/p>\n","protected":false},"author":18,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[12,45,5],"tags":[],"class_list":["post-586","post","type-post","status-publish","format-standard","hentry","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\/586","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=586"}],"version-history":[{"count":1,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/586\/revisions"}],"predecessor-version":[{"id":5743,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/586\/revisions\/5743"}],"wp:attachment":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media?parent=586"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/categories?post=586"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/tags?post=586"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}