NRT VIIRS/MODIS Dark Target Deep Blue Aerosol AOD with QA for Data Assimilation 3-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_L3_VIIRS_MODIS_NRT product is divided into 3-hour data files (centered at UTC 00:00, 03:00, and so on each day). Each of these 3-hour files is updated in NRT as upstream L2 data becomes available. The separate AERDA_D3_VIIRS_MODIS_NRT product (differentiated by "D3" as opposed to "L3") contains 24 hours of data (UTC 00:00 to 00:00 each day), and is produced once daily after all upstream data is available.