{"id":9208,"date":"2011-11-20T21:00:52","date_gmt":"2011-11-20T21:00:52","guid":{"rendered":"http:\/\/cimss.ssec.wisc.edu\/satellite-blog\/?p=9208"},"modified":"2011-11-21T18:25:28","modified_gmt":"2011-11-21T18:25:28","slug":"snow-cover-increasing-over-the-north-central-us","status":"publish","type":"post","link":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/archives\/9208","title":{"rendered":"Snow cover increasing across the north-central US"},"content":{"rendered":"
\"MODIS<\/a>

MODIS 0.65 \u00c2\u00b5m visible channel image + MODIS Red\/Green\/Blue (RGB) false color image<\/p><\/div>\n

A comparison of an AWIPS image of 1-km resolution MODIS 0.65 \u00c2\u00b5m visible channel data with the corresponding MODIS false color Red\/Green\/Blue (RGB) image created using the 2.1 \u00c2\u00b5m “snow\/ice channel” (above)<\/em><\/strong> showed that snow cover was beginning to increase in areal extent across parts of the north-central US on 20 November 2011<\/strong>. This example also demonstrates the utility of RGB imagery for helping to discriminate between snow cover (which shows up as shades of red on the RGB image)<\/em> and supercooled water droplet clouds (which show up as varying shades of white)<\/em>. Snow depths at the time included 11 inches at Mount Rushmore, South Dakota, 10 inches at Rice, Minnesota and 5 inches at Minot, North Dakota.<\/p>\n

MODIS false color RGB images created using data from consecutive overpasses of the Terra (17:22 UTC) and Aqua (19:03 UTC) satellites (below)<\/em><\/strong> also show the movement of the low cloud features during that period.<\/p>\n

\"MODIS<\/a>

MODIS false color Red\/Green\/Blue (RGB) images<\/p><\/div>\n

As pointed out in the NWS Minneapolis Area Forecast Discussion<\/a><\/strong>, the swath of fresh snow cover would have an impact on daily high and low temperatures at locations where the snow was deepest. An AWIPS image of the 1-km resolution MODIS Land Surface Temperature (LST) product (below)<\/em><\/strong> revealed that LST values were in the 0\u00c2\u00ba F to +10\u00c2\u00ba F range (cyan to blue color enhancement)<\/em> over the areas with snow cover, in contrast to LST values in the 30s F (green color enhancement)<\/em> over adjacent areas with bare ground.<\/p>\n

\"MODIS<\/a>

MODIS Land Surface Temperature product<\/p><\/div>\n

CIMSS participation in GOES-R Proving Ground<\/strong><\/a> activities includes making a variety of MODIS<\/a><\/strong> <\/strong> images and products available for National Weather Service offices to add to their local AWIPS workstations. Currently there are 49 NWS offices<\/a><\/strong> receiving MODIS imagery and products from CIMSS.<\/p>\n","protected":false},"excerpt":{"rendered":"

A comparison of an AWIPS image of 1-km resolution MODIS 0.65 \u00c2\u00b5m visible channel data with the corresponding MODIS false color Red\/Green\/Blue (RGB) image created using the 2.1 \u00c2\u00b5m “snow\/ice channel” (above) showed that snow cover was beginning to increase in areal extent across parts of the north-central US on 20 November 2011. This example […]<\/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":[34,12,45,5],"tags":[],"class_list":["post-9208","post","type-post","status-publish","format-standard","hentry","category-goes-r","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\/9208","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=9208"}],"version-history":[{"count":10,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/9208\/revisions"}],"predecessor-version":[{"id":9210,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/9208\/revisions\/9210"}],"wp:attachment":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media?parent=9208"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/categories?post=9208"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/tags?post=9208"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}