N: 90 S: -90 E: 180 W: -180
Description
The OMI science team produces this Level-3 Aura/OMI Global Aerosol Data Products OMAEROe (0.25deg Lat/Lon grids). The OMAEROe product selects best aerosol value from the Level2G good quality data that are reported in each grid, based on the multi-wavelength algorithm that uses up to 20 wavelength bands between 331 nm and 500 nm. The selection criteria is based on the shortest optical path length (secant of solar zenith angle + secant of viewing zenith angle).
The OMAEROe files are stored in the version 5 EOS Hierarchical Data Format (HDF-EOS5). Each file contains daily data from approximately 15 orbits. The maximum file size for the OMAEROe data product is about 7 Mbytes. (The shortname for this Level-3 Global Gridded Aerosol Product is OMAEROe)
Product Summary
Citation
Citation is critically important for dataset documentation and discovery. This dataset is openly shared, without restriction, in accordance with the EOSDIS Data Use and Citation Guidance.
Copy Citation
Documents
READ-ME
PI DOCUMENTATION
Variables
The table below lists the variables contained within a single granule for this dataset. Variables often contain observed or derived geophysical measurements collected from a variety of sources, including remote sensing instruments on satellite and airborne platforms, field campaigns, in situ measurements, and model outputs. The terms variable, parameter, scientific data set, layer, and band have been used across NASA’s Earth science disciplines; however, variable is the designated nomenclature in NASA’s Common Metadata Repository (CMR). Variable metadata attributes such as Name, Description, Units, Data Type, Fill Value, Valid Range, and Scale Factor allow users to efficiently process and analyze the data. The full range of attributes may not be applicable to all variables. Additional information on variable attributes is typically available in the data, user guide, and/or other product documentation.
For questions on a specific variable, please use the Earthdata Forum.
| Name Sort descending | Description | Units | Data Type | Fill Value | Valid Range | Scale Factor |
|---|---|---|---|---|---|---|
| HDFEOS/GRIDS/ColumnAmountAerosol/Data Fields/AbsorbingAerosolOpticalThicknessMW | Spectral Absorbing Aerosol Optical Thickness for best fit aerosol model derived with the Multi-Wavelength method, scaled by a factor 1000 | NoUnits | int16 | -32767 | N/A | N/A |
| HDFEOS/GRIDS/ColumnAmountAerosol/Data Fields/AerosolModelMW | Aerosol model indicator for best fit aerosol model derived with the Multi-Wavelength method | NoUnits | uint16 | 65535 | N/A | N/A |
| HDFEOS/GRIDS/ColumnAmountAerosol/Data Fields/AerosolOpticalThicknessMW | Spectral Aerosol Optical Thickness for best fit aerosol model derived with the Multi-Wavelength method, scaled by a factor 1000 | NoUnits | int16 | -32767 | N/A | N/A |
| HDFEOS/GRIDS/ColumnAmountAerosol/Data Fields/AerosolOpticalThicknessPassedThresholdMean | Mean spectral Aerosol Optical Thickness of aerosol models that passed the threshold, scaled by a factor 1000. | NoUnits | int16 | -32767 | N/A | N/A |
| HDFEOS/GRIDS/ColumnAmountAerosol/Data Fields/AerosolOpticalThicknessPassedThresholdStd | Standard deviation of the Aerosol Optical Thicknesses of aerosol models that passed the threshold, scaled by a factor 1000. | NoUnits | int16 | -32767 | N/A | N/A |
| HDFEOS/GRIDS/ColumnAmountAerosol/Data Fields/Latitude | Latitude of the center of the groundpixel | deg | float32 | -1.2676506002282E+30 | N/A | N/A |
| HDFEOS/GRIDS/ColumnAmountAerosol/Data Fields/Longitude | Longitude of the center of the groundpixel | deg | float32 | -1.2676506002282E+30 | N/A | N/A |
| HDFEOS/GRIDS/ColumnAmountAerosol/Data Fields/SingleScatteringAlbedoMW | Spectral Single Scattering Albedo for best fit aerosol model derived with the Multi-Wavelength method, scaled by a factor 1000 | NoUnits | int16 | -32767 | N/A | N/A |
| HDFEOS/GRIDS/ColumnAmountAerosol/Data Fields/SingleScatteringAlbedoPassedThresholdMean | Mean spectral Single Scattering Albedo of aerosol models that passed the threshold, scaled by a factor 1000. | NoUnits | int16 | -32767 | N/A | N/A |
| HDFEOS/GRIDS/ColumnAmountAerosol/Data Fields/SingleScatteringAlbedoPassedThresholdStd | Standard deviation of the Single Scattering Albedo of aerosol models that passed the threshold, scaled by a factor 1000. | NoUnits | int16 | -32767 | N/A | N/A |
| HDFEOS/GRIDS/ColumnAmountAerosol/Data Fields/SolarZenithAngle | Solar zenith angle at WGS84 ellipsoid for center co-ordinate of the ground pixel | deg | float32 | -1.2676506002282E+30 | N/A | N/A |
| HDFEOS/GRIDS/ColumnAmountAerosol/Data Fields/TerrainReflectivity | Reflectivity of the ground pixel, scaled by a factor 1000 | NoUnits | int16 | -32767 | N/A | N/A |
| HDFEOS/GRIDS/ColumnAmountAerosol/Data Fields/UVAerosolIndex | UV Aerosol Index | NoUnits | float32 | -1.2676506002282E+30 | N/A | N/A |
| HDFEOS/GRIDS/ColumnAmountAerosol/Data Fields/ViewingZenithAngle | Viewing zenith angle at WGS84 ellipsoid for center co-ordinate of the ground pixel | deg | float32 | -1.2676506002282E+30 | N/A | N/A |
| HDFEOS/GRIDS/ColumnAmountAerosol/Data Fields/VISAerosolIndex | VIS Aerosol Index | NoUnits | float32 | -1.2676506002282E+30 | N/A | N/A |
| HDFEOS INFORMATION/StructMetadata.0 | HDFEOS INFORMATION/StructMetadata.0 | N/A | OTHER | N/A | N/A | N/A |