A few days ago the California Forest Service announced that they had the Rim fire in California 80% undercontrol. Yesterday, the fire bloomed up another 10,000 acres showing that it still can generate smoke. On the left, the MODIS Terra Red-Green-Blue (RGB) image from this morning shows the smoke travelling northward. The same satellite also gives other color combinations and the 7-2-1 channels shows surface features (particularly burn scars and flaming combusion). The same region in the "false color" format shows how much of the area around Yosemite has burned.
On the left below is today's AQUA MODIS RGB with the VIIRS fire detections. On the right is a region in Arkansas which shows visible fire detects. The same region showed smoke (near the pin on the RGB) on Thursday's CALIPSO overpass.
The DISCOVER-AQ project continues in Houston with two days of circuits of the city now completed by the aircraft. On Thursday, there was a remarkable brown CB seen in eastern Louisiana and it was fire related.
Update: September 8, 2013 20:00 CDT
The Rim Fire continues to be the newsmaker in California air quality. The Aqua RGB image today shows the fire plume bubbling up out of a general pall of smoke in the Sierras. On the right is the AIRNOW AQI showing again Hazardous AQI readings.
There are other fires in California including the Corral fire in Northwest California and a new fire in Nevada County west and north of Lake Tahoe (this fire is yet unnamed on the USDA FIRMS database). Finally on the right below is an image of the pollution aerosols over Houston made by the NASA High Spectral Resolution Lidar. Smog Blogger Ray Rogers now works for NASA Langley and is responsible for creating these images. Thanks, Ray!
Posted by Ray Hoff at September 7, 2013 6:44 PM