Aerosols from Fires Stretch from Ontario to Niagara Falls (IMAGE)

NASA/Goddard Space Flight Center

Aerosols from Fires Stretch from Ontario to Niagara Falls

Caption

The data for this image was acquired by MODIS-Aqua, and is averaged over the period July 18-20, 2011. Aerosol Optical Depth is a unitless quantity indicating the degree to which aerosols in the atmosphere prevent the transmission of light. Higher AOD values indicate decreasing light transmission, and thus increased concentration of aerosols, which for fires are primarily composed of soot particles.

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SSEC/WISC/NASA

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