{"id":672,"date":"2008-06-23T22:42:26","date_gmt":"2008-06-23T22:42:26","guid":{"rendered":"http:\/\/cimss.ssec.wisc.edu\/satellite-blog\/archives\/672"},"modified":"2008-06-28T04:55:42","modified_gmt":"2008-06-28T04:55:42","slug":"fire-activity-in-california","status":"publish","type":"post","link":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/archives\/672","title":{"rendered":"Fire activity in California"},"content":{"rendered":"

\"GOES-11<\/a><\/p>\n

Numerous wildfires were started by lightning activity<\/strong><\/a> across Northern California on 21 June 2008<\/strong><\/a>, and GOES-11 visible images from 22 June<\/strong><\/a> (above)<\/strong><\/em> showed a large number of smoke plumes drifting across that region. A MODIS true color image from the SSEC MODIS Today<\/strong><\/a> site (below)<\/strong><\/em> showed that areas of thick smoke remained across much of northern California on 23 June<\/strong><\/a>, with some of the smoke still trapped in the valleys of the North Coast Range. The thick smoke drifting eastward on 22 June reduced surface visibility to 2 miles at Redding<\/strong><\/a> (station identifier KRDD)<\/em>, and was causing major air quality problems<\/strong><\/a> over a good deal of that area.<\/p>\n

\"MODIS<\/a><\/p>\n

An AWIPS image comparison of the 1-km resolution MODIS 3.7 \u00c2\u00b5m and the 4-km resolution GOES-11 3.9 \u00c2\u00b5m shortwave IR channels from around 06 UTC on 23 June (11 PM local time on 22 June)<\/em> demonstrated the improved ability to detect many of the smaller fires using higher spatial resolution data (below)<\/strong><\/em> . In addition, the actual locations of the larger fires were more correctly depicted on the 1-km MODIS image; the comparatively large 4-km GOES IR field of view (and to a lesser extent, the large geostationary satellite viewing angle)<\/em> tends to diminish the accuracy of such small-scale image details. Improved fire monitoring will eventually be possible using the Advanced Baseline Imager<\/strong><\/a> (ABI) instrument on the upcoming GOES-R satellite<\/strong><\/a> (scheduled to be launched in 2014),<\/em> which will offer similar IR imagery at a 2-km spatial resolution (at 5-minute intervals on a routine basis)<\/em>.<\/p>\n

\"MODIS<\/a><\/p>\n

UPDATE:<\/strong><\/em> A MODIS true color image from 24 June<\/strong><\/a> (below, <\/strong>displayed using<\/em> Google Earth<\/a>)<\/strong><\/em> showed that the thick smoke had increased in areal coverage across much of northern California. MODIS Aerosol Optical Depth values as high as 1.0<\/strong><\/a> were seen across much of the Sacramento Valley region of northern California; surface visibilities on that day at Redding and Red Bluff were as low as 1 mile due to smoke.<\/p>\n

\"MODIS<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Numerous wildfires were started by lightning activity across Northern California on 21 June 2008, and GOES-11 visible images from 22 June (above) showed a large number of smoke plumes drifting across that region. A MODIS true color image from the SSEC MODIS Today site (below) showed that areas of thick smoke remained across much of […]<\/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":[7,6,18,32,12],"tags":[],"class_list":["post-672","post","type-post","status-publish","format-standard","hentry","category-air-quality","category-fire-detection","category-goes-11","category-google-earth","category-modis"],"acf":[],"_links":{"self":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/672","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=672"}],"version-history":[{"count":0,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/672\/revisions"}],"wp:attachment":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media?parent=672"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/categories?post=672"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/tags?post=672"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}