February 28, 2014

Blowing dust in West Texas and Eastern New Mexico; elevated no2 in northeast

Looking at the NOAA HMS Smoke and Fire Product (top left), the small red dots indicate a groups of fires in the Southeast and Midwest. While no notable smoke plumes were seen, blowing dust and sand was seen this morning pushing across eastern New Mexico and west Texas. The MODIS Aqua image (top right) shows raised AOD values in New Mexico corresponding to this dust as well as AOD upwards of .4 in the Great Lakes region.

The EPA AIRNow combined AQI loop (bottom left) details moderate AQIs across the US with the exception of a patch of unhealthy AQI in northwest Texas from 10:00 AM to 2:00 PM EST, in accordance with the blowing dust. No significant elevation in AQI or AOD was seen in the Southeast as a result of the fires spotted on the HMS. The OMI NRT tropospheric NO2 column (bottom right) illustrates elevated NO2 in the Great Lakes, attributing to the moderate AQIs (as explained quite elegantly on Wednesday by Ruben) and the increased AOD noted by MODIS Aqua.

Posted by Graham Antoszewski at February 28, 2014 5:31 PM
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