March 11, 2014

Fires in the Southeast persist. Elevated AOD over land and the Gulf of Mexico.

The first image, courtesy NOAA HMS, shows the widespread fire and smoke activity in the Southeast region of the U.S. These fires are concentrated within the entire region and smoke plumes are being carried towards the Atlantic Ocean via westerly winds. The next image, courtesy MODIS Aqua, shows an elevated AOD in the concentrated fire areas. Specifically, on the border between Tennessee and Arkansas, there is an extremely elevated region of AOD.

The animation below, courtesy EPA AIRNow, shows the AQI values for the Southeast region of the country for today. There have been numerous code reds and oranges due to the fire activity, which has been causing unhealthy air quality for the region over the past few days. The image on the lower right shows the NAAPS model for aerosols for 12 Z for the country today. This model resolves the heavy smoke in the Southeast region as well as elevated sulfates stretching across the eastern U.S. This model also detects heavy dust blowing in near Utah.

Posted by John Sullivan at March 11, 2014 5:40 PM
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