{"id":44541,"date":"2022-02-04T22:59:00","date_gmt":"2022-02-04T22:59:00","guid":{"rendered":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/?p=44541"},"modified":"2022-02-08T00:01:15","modified_gmt":"2022-02-08T00:01:15","slug":"satellite-signatures-of-wdespread-ice-accretion","status":"publish","type":"post","link":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/archives\/44541","title":{"rendered":"Satellite signatures of widespread ice accretion"},"content":{"rendered":"
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GOES-16 “Red” Visible (0.64 \u00b5m), Near-Infrared “Snow\/Ice” (1.61 \u00b5m) and Day Snow-Fog RGB images [click to play animated GIF | MP4<\/strong><\/a>]<\/p><\/div>\n

In a sequence of GOES-16 (GOES-East)<\/em> “Red” Visible (0.64 \u00b5m), Near-Infrared “Snow\/Ice” (1.61 \u00b5m) and Day Snow-Fog RGB images (above)<\/strong><\/em>, areas that received a significant accretion of ice — via sleet and\/or freezing rain\/drizzle from a significant winter storm<\/strong><\/a> — appeared as darker shades of gray to black in the 1.61 \u00b5m images and as darker shades of red in the RGB images on 04 February 2022<\/strong><\/a>.\u00a0<\/p>\n

A toggle between Suomi-NPP VIIRS Visible (0.64 \u00b5m) and Near-Infrared (1.61 \u00b5m) is shown below, and provided a higher-resolution view of the darker ice accretion signature at 1942 UTC.<\/p>\n

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Suomi-NPP VIIRS Visible (0.64 \u00b5m) and Near-Infrared (1.61 \u00b5m) images [click to enlarge]<\/p><\/div>\n

===== 05 Februray Update =====<\/strong><\/p>\n

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GOES-16 “Red” Visible (0.64 \u00b5m), Near-Infrared “Snow\/Ice” (1.61 \u00b5m) and Day Snow-Fog RGB images [click to play animated GIF |MP4<\/strong><\/a>]<\/p><\/div>\n

On the following day, clouds had cleared from much of the central US — enabling the areal coverage of this ice accretion signature to be seen across parts of Texas, Oklahoma, Arkansas, Tennessee, Kentucky (above)<\/strong><\/em>. A comparison of GOES-16 “Red” Visible, Near-Infrared “Snow\/Ice” and Day Snow-Fog RGB images at 1501 UTC (below)<\/strong><\/em> showed how this darker ribbon of ice accretion was located along the southern edge accumulating snowfall produced by the winter storm.<\/p>\n

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GOES-16 “Red” Visible (0.64 \u00b5m), Near-Infrared “Snow\/Ice” (1.61 \u00b5m) and Day Snow-Fog RGB images at 1501 UTC [click to enlarge]<\/p><\/div>\n

A closer view centered on the Missouri-Illinois-Kentucky-Tennessee border region (below)<\/strong><\/em> showed (1) the subtle effects of topography on resultant snow\/ice accumulation, and (2) the darker appearance on Snow\/Ice and RGB images in some areas that appeared to be bare ground in the Visible images (due to the clear\/translucent nature of any sleet and\/or freezing rain on the surface). Unfortunately, a portion of that satellite scene was also affected by a major tornado outbreak<\/strong><\/a> about 2 months prior to this winter storm.\u00a0 \u00a0 \u00a0<\/p>\n

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GOES-16 “Red” Visible (0.64 \u00b5m), Near-Infrared “Snow\/Ice” (1.61 \u00b5m), Day Snow-Fog RGB and Topography images at 1501 UTC [click to enlarge]<\/p><\/div>\n\n\n

<\/p>\n","protected":false},"excerpt":{"rendered":"

In a sequence of GOES-16 (GOES-East) “Red” Visible (0.64 \u00b5m), Near-Infrared “Snow\/Ice” (1.61 \u00b5m) and Day Snow-Fog RGB images (above), areas that received a significant accretion of ice — via sleet and\/or freezing rain\/drizzle from a significant winter storm — appeared as darker shades of gray to black in the 1.61 \u00b5m images and as […]<\/p>\n","protected":false},"author":18,"featured_media":44555,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[74,45,49,48,5],"tags":[],"class_list":["post-44541","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-goes-16","category-redgreenblue-rgb-images","category-suomi_npp","category-viirs","category-winter-weather"],"acf":[],"_links":{"self":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/44541","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=44541"}],"version-history":[{"count":8,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/44541\/revisions"}],"predecessor-version":[{"id":44569,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/44541\/revisions\/44569"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media\/44555"}],"wp:attachment":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media?parent=44541"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/categories?post=44541"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/tags?post=44541"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}