{"id":11219,"date":"2012-08-29T12:59:33","date_gmt":"2012-08-29T12:59:33","guid":{"rendered":"http:\/\/cimss.ssec.wisc.edu\/satellite-blog\/?p=11219"},"modified":"2012-08-31T21:41:42","modified_gmt":"2012-08-31T21:41:42","slug":"wildfires-in-the-northwestern-us","status":"publish","type":"post","link":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/archives\/11219","title":{"rendered":"Wildfires in the northwestern US"},"content":{"rendered":"
\"GOES-13<\/a>

GOES-13 0.63 \u00c2\u00b5m visible channel + 3.9 \u00c2\u00b5m shortwave IR channel data (click image to play animation)<\/p><\/div>\n

McIDAS images of GOES-13 0.63 \u00c2\u00b5m visible channel data during the day and 3.9 \u00c2\u00b5m shortwave IR data at night (above; click image to play animation)<\/strong> revealed a number of very large and dense smoke plumes from wildfires that were burning in parts of the northwestern US (primarily in Idaho)<\/em> on 28 August<\/a> – 29 August 2012<\/a><\/strong>. The GOES-13 satellite had been placed into Rapid Scan Operations (RSO) mode, providing images as frequently as very 5-10 minutes.<\/p>\n

During the following overnight hours, AWIPS images of Suomi NPP VIIRS 0.8 \u00c2\u00b5m Day\/Night Band (DNB), 3.74 \u00c2\u00b5m shortwave IR, and 11.45 \u00c2\u00b5m IR data (below)<\/em><\/strong> demonstrated the value of the DNB providing a visible channel at night (under ideal conditions of illumination by ample moonlight)<\/em>. While the 11.45 \u00c2\u00b5m IR image verified that there were some patches of meteorological cloud in the region, the majority of the bright features seen on the DNB image were thick airborne smoke.<\/p>\n

\"Suomi<\/a>

Suomi NPP VIIRS 0.8 \u00c2\u00b5m Day\/night Band, 3.74 \u00c2\u00b5m shortwave IR, and 11.45 \u00c2\u00b5m IR window images<\/p><\/div>\n

An even closer view using McIDAS-V<\/a><\/strong> images of VIIRS 0.8 \u00c2\u00b5m DNB and 4.05 \u00c2\u00b5m shortwave IR data (below; images courtesy of William Straka, CIMSS)<\/em><\/strong> highlighted the Mustang Fire Complex<\/a><\/strong> smoke plume and “fire hot spots” (black to yellow to red color enhancement)<\/em> at 08:32 UTC. This fire was particularly hot, producing pyrocumulus clouds even into the night-time hours. The hottest IR brightness temperature\u00c2\u00a0 in the red-enhanced region was 546.5 K (or\u00c2\u00a0 273.4 C,\u00c2\u00a0 524 F).<\/p>\n

\"Suomi<\/a>

Suomi NPP 0.8 \u00c2\u00b5m Day\/Night Band, 3.73 \u00c2\u00b5m shortwave IR, and 11.45 \u00c2\u00b5m longwave IR images<\/p><\/div>\n

===== 31 August Update =====<\/strong><\/p>\n

A night-time image comparison of the VIIRS 0.8 \u00c2\u00b5m Day\/Night Band and the corresponding 3.74 \u00c2\u00b5m shortwave IR (below)<\/strong><\/em> revealed areas of smoke that were trapped in some of the valleys of central Idaho at 09:34 UTC (3:34 AM local time)<\/em> on 31 August 2012.<\/p>\n

\"Suomi<\/a>

Suomi NPP VIIRS 0.8 \u00c2\u00b5m Day\/Night Band image + 3.74 \u00c2\u00b5m shortwave IR image<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"

McIDAS images of GOES-13 0.63 \u00c2\u00b5m visible channel data during the day and 3.9 \u00c2\u00b5m shortwave IR data at night (above; click image to play animation) revealed a number of very large and dense smoke plumes from wildfires that were burning in parts of the northwestern US (primarily in Idaho) on 28 August – 29 […]<\/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":[13,15,11,49,48],"tags":[],"class_list":["post-11219","post","type-post","status-publish","format-standard","hentry","category-fog-detection","category-goes-sounder","category-goes-13","category-suomi_npp","category-viirs"],"acf":[],"_links":{"self":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/11219","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=11219"}],"version-history":[{"count":18,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/11219\/revisions"}],"predecessor-version":[{"id":11221,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/11219\/revisions\/11221"}],"wp:attachment":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media?parent=11219"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/categories?post=11219"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/tags?post=11219"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}