AERDB_L2G_GEOLEO_Merged - MODIS+AHI+ABI+VIIRS/GEO-LEO Merged Deep Blue Aerosol L2 0.25x0.25 degree grid



The Level-2G (L2G) Geostationary Earth Orbit (GEO)-Low-Earth Orbit (LEO) Merged Deep Blue Aerosol 0.25 x 0.25-degree Gridded dataset is part of a 12-product suite produced by an Earth Science Research from Operational Geostationary Satellite Systems (ESROGSS)-funded project. The 12 products in this project include nine derived from three Geostationary Earth Observation (GEO) instruments and three from merged data from GEO and Low-Earth Orbit (LEO) instruments as summarized in the following table:

Platform Instrument Temporal Cadence Spatial Res. Product
GOES-16 Advanced Baseline Imager 30 Min. 10 km AERDB_L2_ABI_G16
GOES-17 Advanced Baseline Imager 30 Min. 10 km AERDB_L2_ABI_G17
Himawari-8 Advanced Himawari Imager 30 Min. 10 km AERDB_L2_AHI_H08
GOES-16 Advanced Baseline Imager Daily 1˚ x 1˚ AERDB_D3_ABI_G16
GOES-17 Advanced Baseline Imager Daily 1˚ x 1˚ AERDB_D3_ABI_G17
Himawari-8 Advanced Himawari Imager Daily 1˚ x 1˚ AERDB_D3_AHI_H08
GOES-16 Advanced Baseline Imager Monthly 1˚ x 1˚ AERDB_M3_ABI_G16
GOES-17 Advanced Baseline Imager Monthly 1˚ x 1˚ AERDB_M3_ABI_G17
Himawari-8 Advanced Himawari Imager Monthly 1˚ x 1˚ AERDB_M3_AHI_H08
Multiple* ABI, AHI, VIIRS, MODIS* 30 Min. 0.25˚ x 0.25˚ AERDB_L2G_GEOLEO_Merged
Multiple* ABI, AHI, VIIRS, MODIS* Daily 1˚ x 1˚ AERDB_D3_GEOLEO_Merged
Multiple* ABI, AHI, VIIRS, MODIS* Monthly 1˚ x 1˚ AERDB_M3_GEOLEO_Merged
  • includes G16-ABI, G17-ABI, H08-AHI, SNPP-VIIRS, NOAA20-VIIRS, Terra MODIS & Aqua MODIS

Each L2G GEO-LEO Merged Deep Blue Aerosol product contains gridded Aerosol Optical Thickness (AOT) at 550 nm reference wavelength, derived from seven merged GEO-LEO AOT layers (G16-ABI, G17-ABI, H08-AHI, SNPP-VIIRS, NOAA20-VIIRS, Terra MODIS and Aqua MODIS) and from each of the individual (three GEO and four LEO) instrument sources. Each L2G aggregated datafile is spatially comprised of a 0.25˚ x 0.25˚ horizontal grid that exists for every 30 minutes. This represents a 30-minute Deep Blue best-estimate AOT from each of the seven sources besides an error-weighted merged AOT layer. This first release of these products spans from May 2019 through April 2020 with a potential to generate additional temporal coverage in the future.

Each L2G GEO-LEO Merged datafile contains the following Science Data Sets (SDS):

  GEO-LEO Merged Group SDS
1 Aerosol_Optical_Thickness_550_Count_Land
2 Aerosol_Optical_Thickness_550_Count_Land_Ocean
3 Aerosol_Optical_Thickness_550_Count_Ocean
4 Aerosol_Optical_Thickness_550_Land
5 Aerosol_Optical_Thickness_550_Land_Ocean
6 Aerosol_Optical_Thickness_550_Maximum_Land
7 Aerosol_Optical_Thickness_550_Maximum_Land_Ocean
8 Aerosol_Optical_Thickness_550_Maximum_Ocean
9 Aerosol_Optical_Thickness_550_Minimum_Land
10 Aerosol_Optical_Thickness_550_Minimum_Land_Ocean
11 Aerosol_Optical_Thickness_550_Minimum_Ocean
12 Aerosol_Optical_Thickness_550_Ocean
13 Aerosol_Optical_Thickness_550_Standard_Deviation_Land
14 Aerosol_Optical_Thickness_550_Standard_Deviation_Land_Ocean
15 Aerosol_Optical_Thickness_550_Standard_Deviation_Ocean
16 Solar_Zenith_Angle
  GEO SDSs (G16/ABI, G17/ABI, H08/AHI) & LEO SDSs (T/A: MODIS, SNPP/NOAA-20: VIIRS)
1 Aerosol_Optical_Thickness_550_Count_Land
2 Aerosol_Optical_Thickness_550_Count_Land_Ocean
3 Aerosol_Optical_Thickness_550_Count_Ocean
4 Aerosol_Optical_Thickness_550_Expected_Uncertainty_Land
5 Aerosol_Optical_Thickness_550_Expected_Uncertainty_Land_Ocean
6 Aerosol_Optical_Thickness_550_Expected_Uncertainty_Ocean
7 Aerosol_Optical_Thickness_550_Land
8 Aerosol_Optical_Thickness_550_Land_Ocean
9 Aerosol_Optical_Thickness_550_Ocean
10 Aerosol_Optical_Thickness_550_Standard_Deviation_Land
11 Aerosol_Optical_Thickness_550_Standard_Deviation_Land_Ocean
12 Aerosol_Optical_Thickness_550_Standard_Deviation_Ocean
13 Relative_Azimuth_Angle
14 Solar_Zenith_Angle
15 Viewing_Zenith_Angle

Links


Shortname: AERDB_L2G_GEOLEO_Merged
Platform: GOES-16+GOES-17+Himawari-8+Aqua+Terra+NOAA-20+Suomi-NPP
Instrument: MODIS+AHI+ABI+VIIRS
Processing Level: Level-2 Tiled
Data Format: netCDF4
Spatial Resolution: 0.25deg
Temporal Resolution: MINS=10
ArchiveSets: 5019
Collection: GEO-LEO Dark Target Aerosol and Deep Blue Aerosol Data Collection 1 (ArchiveSet 5019)
PGE Number: NONE
File Naming Convention:

Syntax: ESDT.AYYYYDDD.HHMM.CCC.YYYYDDDHHMMSS.Format
Example: AERDB_L2G_GEOLEO_Merged.A2020031.0400.001.2024031092933.nc

  • ESDT Earth Science Data Type or Shortname
  • A Stands for Acquisition
  • YYYYDDD Data acquisition year and Day-of-year per the Julian Calendar
  • CCC Version ID of the data collection
  • YYYYDDDHHMMSS Processing year, Day-of-year, UTC time (hour, minutes, seconds)
  • Format File format suffix, which in the above case represents netCDF4
Keywords: GEO-LEO Merged, L2G, AOT, ESROGSS GEO Deep Blue Aerosol project
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