![\"Composite](\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2017\/12\/171203_suomi_npp_viirs_DayNightBand_composite.jpg\")
<\/a>Composite of Suomi NPP VIIRS Day\/Night Band swaths [click to enlarge]<\/p><\/div>The only Supermoon<\/strong><\/a> of 2017 occurred on 03 December — and a composite of Suomi NPP VIIRS Day\/Night Band (0.7 \u00b5m) swaths viewed using RealEarth<\/strong><\/a> (above)<\/strong> <\/em>demonstrated the “visible image at night” capability of that spectral band. A VIIRS instrument is also part of the payload on recently-launched JPSS-1\/NOAA-20.<\/p>\n A few examples providing closer looks using VIIRS Day\/Night Band (DNB) imagery are shown below, beginning with the western portion of an Atlantic storm that had been producing Gale Force winds during the previous 6-12 hours.<\/p>\n Suomi NPP VIIRS Day\/Night Band (0.7 \u00b5m) image centered over the western Atlantic [click to enlarge]<\/p><\/div>A toggle between Day\/Night Band (0.7 \u00b5m) and Fog\/stratus Infrared Brightness Temperature Difference (11.45 \u00b5m – 3.74 \u00b5m) images, centered over the Southeast US (below)<\/strong><\/em> showed widespread areas of fog and\/or stratus The brighter fog\/stratus features were generally brighter on the DNB image..<\/p>\n Suomi NPP VIIRS Day\/Night Band (0.7 \u00b5m) and Fog\/stratus Infrared Brightness Temperature Difference (11.45 \u00b5m – 3.74 \u00b5m) images, centered over the Southeast US [click to enlarge]<\/p><\/div>Another toggle between DNB and Fog\/stratus Infrared Brightness Temperature Difference images, this time centered over Minnesota, Wisconsin and the UP of Michigan (below)<\/strong><\/em> revealed snow cover<\/strong><\/em><\/a> that was much below average for the date — especially across the UP of Michigan.<\/p>\n<\/a><\/a>