N: 90 S: -90 E: 180 W: -180
Description
The AER_UAA suite provides aerosol optical properties (AOP), retrieved using the Unified Aerosol Algorithm (UAA). Core variables include measures that describe aerosol loading, size partitioning, and absorption. A companion product in the same family provides the UV Absorbing Aerosol Index (UVAI_UAA). Typical uses include air-quality and climate analyses, aerosol context for ocean-color atmospheric correction, trend studies, and model evaluation; users should refer to per-file metadata/flags for quality screening and wavelength availability.
Core geophysical variables in this suite include:
- Aerosol_Optical_Depth_λ - Aerosol optical thickness at λ nm
- NUV_AerosolIndex — Near-UV aerosol index (unitless)
- NUV_AerosolOpticalDepthOverCloud — Near-UV aerosol optical depth over cloud (unitless)
- NUV_CloudOpticalDepth — Near-UV cloud optical depth (unitless)
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.
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Documents
ALGORITHM THEORETICAL BASIS DOCUMENT (ATBD)
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 | Offset |
|---|---|---|---|---|---|---|---|
| AAOD_354 | Absorbing aerosol optical thickness at 354 nm | N/A | float32 | -32767 | -1 to 5 | N/A | N/A |
| AAOD_388 | Absorbing aerosol optical thickness at 388 nm | N/A | float32 | -32767 | -1 to 5 | N/A | N/A |
| AAOD_550 | Absorbing aerosol optical thickness at 550 nm | N/A | float32 | -32767 | -1 to 5 | N/A | N/A |
| Aerosol_Optical_Depth_354 | Aerosol optical thickness at 354 nm | N/A | float32 | -32767 | -1 to 5 | N/A | N/A |
| Aerosol_Optical_Depth_388 | Aerosol optical thickness at 388 nm | N/A | float32 | -32767 | -1 to 5 | N/A | N/A |
| Aerosol_Optical_Depth_480 | Aerosol optical thickness at 480 nm | N/A | float32 | -32767 | -1 to 5 | N/A | N/A |
| Aerosol_Optical_Depth_550 | Aerosol optical thickness at 550 nm | N/A | float32 | -32767 | -1 to 5 | N/A | N/A |
| Aerosol_Optical_Depth_670 | Aerosol optical thickness at 670 nm | N/A | float32 | -32767 | -1 to 5 | N/A | N/A |
| Aerosol_Optical_Depth_870 | Aerosol optical thickness at 870 nm | N/A | float32 | -32767 | -1 to 5 | N/A | N/A |
| Aerosol_Optical_Depth_1240 | Aerosol optical thickness at 1240 nm | N/A | float32 | -32767 | -1 to 5 | N/A | N/A |
| Aerosol_Optical_Depth_2200 | Aerosol optical thickness at 2200 nm | N/A | float32 | -32767 | -1 to 5 | N/A | N/A |
| lat | Latitude | degrees_north | float32 | -999 | -90 to 90 | N/A | N/A |
| lon | Longitude | degrees_east | float32 | -999 | -180 to 180 | N/A | N/A |
| NUV_AerosolCorrCloudOpticalDepth | NUV_AerosolCorrCloudOpticalDepth | N/A | float32 | -32767 | 1 to 50 | N/A | N/A |
| NUV_AerosolIndex | NUV_AerosolIndex | N/A | float32 | -32767 | -5 to 10 | N/A | N/A |
| NUV_AerosolOpticalDepthOverCloud_354 | NUV Aerosol Optical Depth Over Cloud at 354 nm | N/A | float32 | -32767 | -0.050000000745058 to 4 | N/A | N/A |
| NUV_AerosolOpticalDepthOverCloud_388 | NUV Aerosol Optical Depth Over Cloud at 388 nm | N/A | float32 | -32767 | -0.050000000745058 to 4 | N/A | N/A |
| NUV_AerosolOpticalDepthOverCloud_550 | NUV Aerosol Optical Depth Over Cloud at 550 nm | N/A | float32 | -32767 | -0.050000000745058 to 4 | N/A | N/A |
| NUV_CloudOpticalDepth | NUV_CloudOpticalDepth | N/A | float32 | -32767 | 0 to 5 | N/A | N/A |
| Optical_Depth_Ratio_Small_Ocean_used | Optical_Depth_Ratio_Small_Ocean_used | N/A | float32 | -32767 | 0 to 1 | N/A | N/A |