{"id":102,"date":"2006-09-12T22:22:12","date_gmt":"2006-09-12T22:22:12","guid":{"rendered":"http:\/\/cimss.ssec.wisc.edu\/satellite-blog\/2006\/09\/12\/fires-in-montana\/"},"modified":"2006-11-08T21:47:11","modified_gmt":"2006-11-08T21:47:11","slug":"fires-in-montana","status":"publish","type":"post","link":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/archives\/102","title":{"rendered":"Fires in Montana"},"content":{"rendered":"<p><a title=\"GOES-11\/12\/13 shortwave IR animation\" target=\"_blank\" href=\"http:\/\/cimss.ssec.wisc.edu\/goes\/misc\/blog\/060912_g11_g12_g12_ir2.mov\"><img loading=\"lazy\" decoding=\"async\" width=\"480\" height=\"360\" align=\"middle\" alt=\"GOES-11\/12\/13 shortwave IR\" id=\"image100\" title=\"GOES-11\/12\/13 shortwave IR\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2006\/09\/060912_g11_g12_g13_ir2_7.GIF\" \/><\/a><br \/>\nA large (208,000 acre) wildfire continued to burn near <a target=\"_blank\" title=\"Derby Mountain Fire\" href=\"http:\/\/www.inciweb.org\/incident\/440\/\"><strong>Derby Mountain<\/strong><\/a> in southwestern Montana on 12 September. A QuickTime animation of the 3.9 micrometer shortwave IR imagery from GOES-11, GOES-12, and GOES-13 <em><strong>(above)<\/strong><\/em> shows the &#8220;hot spots&#8221; associated with this fire &#8212; on the grayscale enhancement applied to these images, the warmest temperatures are black, and the coldest temperatures are white. However, note that some GOES-12 pixels in the vicinity of the fire are <em>white<\/em>, indicating a <em>cold<\/em> pixel; there is a problem with the 3.9 micrometer detectors on GOES-12, and pixel values that should be very hot &#8220;roll over&#8221; and are actually indicated as cold temperatures. This same problem was noted on GOES-11 during the post-launch evaluation of that satellite a few years ago, but there was no GOES-11 pixel roll-over noted for these particular hot fires (and fortunately, the recently-launched  <a target=\"_blank\" title=\"GOES-13\" href=\"http:\/\/cimss.ssec.wisc.edu\/goes\/g13_report\/\"><strong>GOES-13<\/strong><\/a> has not yet exhibited this behavior). Because of this hot spot detection discrepancy, the <a target=\"_blank\" title=\"GOES-12 Wildfire ABBA\" href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2006\/09\/060912_wfabba_g12_6.gif\"><strong>GOES-12 Wildfire ABBA<\/strong><\/a> flagged this fire as a &#8220;saturated&#8221; pixel (yellow), while the <a target=\"_blank\" title=\"GOES-11 Wildfire ABBA\" href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2006\/09\/060912_wfabba_g11_7.gif\"><strong>GOES-11 Wildfire ABBA<\/strong><\/a> flagged it as a &#8220;processed fire&#8221; (red pixel).<\/p>\n<p>An AWIPS  4-panel comparison of MODIS vs. GOES shortwave IR and visible channels <em><strong>(below)<\/strong><\/em> show that this fire also saturated the MODIS Band 20 detector (as indicated by the &#8220;NO DATA&#8221; cursor value); the visible images also reveal that a smoke plume was drifting east-southeastward from the fire source (which was very apparent on this <a title=\"MODIS true color image\" target=\"_blank\" href=\"http:\/\/eosdb.ssec.wisc.edu\/modisdirect\/aqua\/calibratedImages\/2006\/255\/2006-09-12_2038-2045_BIMT_010403_QKM.jpg\"><strong>MODIS true color image<\/strong><\/a>).<br \/>\n<a title=\"MODIS\/GOES-12 shortwave IR, visible\" target=\"_blank\" href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2006\/09\/060912_modis_goes_swir_vis.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"480\" height=\"456\" align=\"middle\" alt=\"MODIS\/GOES-12 shortwave IR, visible\" id=\"image101\" title=\"MODIS\/GOES-12 shortwave IR, visible\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2006\/09\/060912_modis_goes_swir_vis.jpg\" \/><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>A large (208,000 acre) wildfire continued to burn near Derby Mountain in southwestern Montana on 12 September. A QuickTime animation of the 3.9 micrometer shortwave IR imagery from GOES-11, GOES-12, and GOES-13 (above) shows the &#8220;hot spots&#8221; associated with this fire &#8212; on the grayscale enhancement applied to these images, the warmest temperatures are black, [&hellip;]<\/p>\n","protected":false},"author":18,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[6,18,19,11,12],"tags":[],"class_list":["post-102","post","type-post","status-publish","format-standard","hentry","category-fire-detection","category-goes-11","category-goes-12","category-goes-13","category-modis"],"acf":[],"_links":{"self":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/102","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=102"}],"version-history":[{"count":0,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/102\/revisions"}],"wp:attachment":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media?parent=102"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/categories?post=102"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/tags?post=102"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}