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Daily records from January 5, 2018, onward provide global aerosol optical depth and related atmospheric measurements. The dataset is a Level 3 aggregated product derived from NOAA-20 satellite's VIIRS sensor, containing 45 science data layers per daily file. Each 1x1 degree grid cell represents quality-filtered arithmetic means and standard deviations, requiring at least three valid satellite retrievals per day.
License is ambiguously described as 'other-license-specified' or 'None'; users must consult the official NASA product page for definitive terms. Data is provided in netCDF format.