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VIIRS and OMPS Instruments Combine Dust and Aerosol Data
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VIIRS and OMPS Instruments Combine Dust and Aerosol Data

January 15, 2013
The world is currently in an active period for the production of atmospheric aerosols, according to Colin Seftor, an atmospheric physicist at NASA Goddard Space Flight Center in Greenbelt, Md., who compiled these images. Seftor works for Science Systems and Applications, Inc. This image is a combination of a VIIRS RGB image with OMPS aerosol index (AI) data for September 15, 2012. The OMPS AI shows dust from the Sahara over northern Africa that is being blown over the Atlantic (with yellow, less opaque colors representing less dust and pink, more opaque colors representing more dust). Dust can also be seen over Saudi Arabia and parts of Iran, Afghanistan, and Pakistan. However, the aerosol index signal over the Western U.S. is due to dense smoke from wildfires, while smoke from agricultural biomass burning is visible over both South American and southern Africa. The sun glint in the middle of each swath shows the pattern of the satellite's view in orbit.