NRT VIIRS/MODIS Dark Target Deep Blue Aerosol AOD with QA for Data Assimilation 24-Hour 1 Degree L3

Consistent L3 aggregation is applied to each product after filtering using pre-defined QA thresholds. The product is generated in NRT, and provides a single combined product for VIIRS (NOAA-20 and SNPP) and MODIS (Aqua and Terra) for both the DT and DB NASA AOD retrievals.

This AERDA_D3_VIIRS_MODIS_NRT product contains 24 hours of data (UTC 00:00 to 00:00 each day). It is produced once daily after all upstream data is available. The separate AERDA_L3_VIIRS_MODIS_NRT product (differentiated by "L3" as opposed to "D3") is divided into 3-hour data files (centered at UTC 00:00, 03:00, and so on each day), and each of the 3-hour files is updated in NRT as upstream L2 data becomes available.