July 31, 2004

INTEX: Cloudy east, smoky west

The east coast was cloudy today and portions of the west were covered in smoke from various fires, including a long plume over the northwest. (Note that the western image below is from MODIS Aqua and the eastern image is from MODIS Terra).

The western smoke plume is clearly visible in the MODIS AOD data from the IDEA site.

AOD of northeastern U.S.

The NOAA GASP AOD beautifully captures the long plume of smoke in the western U.S.

The EPA AirNow site revealed low concentrations of PM2.5 across most of the U.S. There are few PM monitors in the west and the smoke is likely high in the atmosphere, so it would not be indicated in this image.

Posted by Jill Engel-Cox at July 31, 2004 6:04 PM