{"id":13646,"date":"2013-08-10T23:59:48","date_gmt":"2013-08-10T23:59:48","guid":{"rendered":"http:\/\/cimss.ssec.wisc.edu\/satellite-blog\/?p=13646"},"modified":"2013-08-12T20:28:44","modified_gmt":"2013-08-12T20:28:44","slug":"wildfires-in-southern-idaho","status":"publish","type":"post","link":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/archives\/13646","title":{"rendered":"Wildfires in southern Idaho"},"content":{"rendered":"
\"GOES-15<\/a>

GOES-15 (left) and GOES-13 (right) 0.63 \u00c2\u00b5m visible channel and 3.9 \u00c2\u00b5m shortwave IR channel images (click image to play animation)<\/p><\/div>\n

\n

A cluster of 4 major fire complexes (the Elk, Pony, McCan, and Beaver complexes)<\/em> began to exhibit extreme fire behavior on during the afternoon and evening hours on 10 August 2013<\/strong><\/a>. A comparison of GOES-15 (GOES-West)<\/em> and GOES-13 (GOES-East)<\/em> 1-km resolution 0.63 \u00c2\u00b5m visible channel and 4-km resolution 3.9 \u00c2\u00b5m shortwave IR images (above; click image to play animation)<\/strong><\/em> showed 2 different perspectives of the many dense smoke plumes and the eventual development of a well-defined pyrocumulonimbus (pyroCb) cloud whose source appeared to be the Pony Complex. On the shortwave IR images, the hottest fire pixels are enhanced red.<\/p>\n

The corresponding 4-km resolution GOES-15 and GOES-13 10.7 \u00c2\u00b5m IR channel images (below; click image to play animation)<\/strong><\/em> revealed that the pyroCb cloud first began to exhibit IR brightness temperatures colder than -20 C\u00c2\u00a0 (cyan color enhancement)<\/em> after 20:00 UTC or 1:00 PM local time,<\/em> -40 C (green color enhancement)<\/em> after 20:20 UTC or 1:30 PM local time, and -60 C (darker red color enhancement)<\/em> after 00:30 UTC or 6:30 PM local time.<\/p>\n

\"GOES-15<\/a>

GOES-15 (left) and GOES-13 (right) 10.7 \u00c2\u00b5m IR channel images (click image to play animation)<\/p><\/div>\n

\n

Several hours later, a comparison of 1-km resolution Suomi NPP VIIRS 3.74 \u00c2\u00b5m and 4-km resolution GOES-13 3.9 \u00c2\u00b5m shortwave IR images just after 4 AM local time (below)<\/strong><\/em> demonstrated the advantage of higher spatial resolution for detecting the true location of fire “hot spots” (black to yellow to red color enhancement)<\/em>. Note that there is also a significant westward displacement of the largest hot spot cluster on the GOES-13 image — there is a known navigation error with the GOES 3.9 \u00c2\u00b5m channel imagery, which is in the process of being corrected.<\/p>\n

\"Suomi<\/a>

Suomi NPP VIIRS 3.74 \u00c2\u00b5m and GOES-13 3.9 \u00c2\u00b5m shortwave IR images<\/p><\/div>\n

\n","protected":false},"excerpt":{"rendered":"

A cluster of 4 major fire complexes (the Elk, Pony, McCan, and Beaver complexes) began to exhibit extreme fire behavior on during the afternoon and evening hours on 10 August 2013. A comparison of GOES-15 (GOES-West) and GOES-13 (GOES-East) 1-km resolution 0.63 \u00c2\u00b5m visible channel and 4-km resolution 3.9 \u00c2\u00b5m shortwave IR images (above; click […]<\/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":[6,11,43,49,48],"tags":[],"class_list":["post-13646","post","type-post","status-publish","format-standard","hentry","category-fire-detection","category-goes-13","category-goes-15","category-suomi_npp","category-viirs"],"acf":[],"_links":{"self":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/13646","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=13646"}],"version-history":[{"count":2,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/13646\/revisions"}],"predecessor-version":[{"id":13648,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/13646\/revisions\/13648"}],"wp:attachment":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media?parent=13646"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/categories?post=13646"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/tags?post=13646"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}