AERDB_M3_GEOLEO_Merged - MODIS+AHI+ABI+VIIRS/GEO-LEO Merged Deep Blue Aerosol monthly 1x1 degree grid
The Level-3 (L3) Geostationary Earth Orbit (GEO)-Low-Earth Orbit (LEO) Merged Deep Blue Aerosol Monthly 1 x 1 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 L3 GEO-LEO Merged Deep Blue Aerosol monthly product contains gridded Aerosol Optical Thickness (AOT) at 550 nm reference wavelength that are composited from the L3 daily product (AERDB_D3_GEOLEO_Merged). Please note that while the individual standalone gridded data layer for each instrument is calculated as the arithmetic mean, the merged AOT layer is derived via an error-weighted average approach. The final retrievals used in the aggregation process are Quality Assurance (QA)-filtered best-estimate values for cells that are measured on the day of interest. Further, at least three such retrievals are required to render the validity of a grid cell on any given day. Each L3 daily aggregated datafile is spatially comprised of a 1˚ x 1˚ horizontal grid that exists for every 30 minutes. 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 L3 GEO-LEO Merged Deep Blue Aerosol monthly 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 |
| Shortname: | AERDB_M3_GEOLEO_Merged | ||||||||||||
| Platform: | AHI | ||||||||||||
| Instrument: | MODIS | ||||||||||||
| Processing Level: | Level-3 | ||||||||||||
| Data Format: | netCDF4 | ||||||||||||
| Spatial Resolution: | 1˚ x 1˚ | ||||||||||||
| Temporal Resolution: | MONTH=1 | ||||||||||||
| ArchiveSet(s): | 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.CCC.YYYYDDDHHMMSS.Format Example: AERDB_M3_GEOLEO_Merged.A2020092.001.2024092025246.nc
|
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| Keywords: | GEO-LEO Merged, L3 Monthly, AOT, ESROGSS GEO Deep Blue Aerosol project |
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