{"id":11461,"date":"2012-09-26T17:41:59","date_gmt":"2012-09-26T17:41:59","guid":{"rendered":"http:\/\/cimss.ssec.wisc.edu\/satellite-blog\/?p=11461"},"modified":"2012-09-27T18:25:45","modified_gmt":"2012-09-27T18:25:45","slug":"viirs-daynight-band-nocturnal-detection-of-wildfire-smoke-aloft","status":"publish","type":"post","link":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/archives\/11461","title":{"rendered":"VIIRS Day\/Night Band: nocturnal detection of wildfire smoke aloft"},"content":{"rendered":"
\"Suomi<\/a>

Suomi NPP VIIRS 0.7 \u00c2\u00b5m Day\/Night Band, 11.45 \u00c2\u00b5m IR, and IR difference “fog\/stratus product” images<\/p><\/div>\n

A comparison of AWIPS images of Suomi NPP VIIRS 0.7 \u00c2\u00b5m Day\/Night Band, 11.45 \u00c2\u00b5m IR, and IR difference “fog\/stratus product” data (above)<\/strong><\/em> revealed that the Day\/Night Band (DNB) can be used for nocturnal detection of dense layers of wildfire smoke aloft (in this case, over parts of Montana, Wyoming, North Dakota, South Dakota, and Nebraska)<\/em>. The brighter DNB signal of the elevated smoke layer was not correlated with any features seen on either the IR image or the fog\/stratus product image at 08:04 UTC (2:04 AM\u00c2\u00a0 local time)<\/em> on 26 September 2012<\/strong><\/a>.<\/p>\n

The MODIS aerosol optical depth (AOD) product (below)<\/strong><\/em> showed that high ADO values were found over that region during the afternoon hours (20 UTC) on 25 September. Forward trajectories from the IDEA-I site<\/strong><\/a> indicated that the majority of this smoke would be drifting slowly eastward.<\/p>\n

\"MODIS<\/a>

MODIS aerosol optical depth (AOD) product<\/p><\/div>\n

The hazy signal of this veil of smoke aloft could also be seen on GOES-14 0.63 \u00c2\u00b5m visible channel images late in the day on 25 September and again early in the day on 26 September (below)<\/strong><\/em>, when the sun angle was low to help highlight the presence of the smoke.<\/p>\n

\"GOES-14<\/a>

GOES-14 0.63 \u00c2\u00b5m visible channel images<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"

A comparison of AWIPS images of Suomi NPP VIIRS 0.7 \u00c2\u00b5m Day\/Night Band, 11.45 \u00c2\u00b5m IR, and IR difference “fog\/stratus product” data (above) revealed that the Day\/Night Band (DNB) can be used for nocturnal detection of dense layers of wildfire smoke aloft (in this case, over parts of Montana, Wyoming, North Dakota, South Dakota, and […]<\/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":[7,10,40,12,49,48],"tags":[],"class_list":["post-11461","post","type-post","status-publish","format-standard","hentry","category-air-quality","category-general-interpretation","category-goes-14","category-modis","category-suomi_npp","category-viirs"],"acf":[],"_links":{"self":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/11461","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=11461"}],"version-history":[{"count":7,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/11461\/revisions"}],"predecessor-version":[{"id":11479,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/11461\/revisions\/11479"}],"wp:attachment":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media?parent=11461"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/categories?post=11461"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/tags?post=11461"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}