Aerosol Optical Depth
The upper panel shows the product generated by the MODIS team (multi-channel "NPOESS VIIRS-like" retrievals). The lower panel shows an "AVHRR-like" product derived using the NESDIS 3rd generation single-channel aerosol algorithm (currently used with AVHRR/3 onboard NOAA-16, -17, and -18 platforms) with MODIS radiances.
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The two maps show global distribution of aerosol optical
depth (0.66 µm) for the last week of 2002, derived from the Terra
MODIS
data on the CERES
SSF dataset.