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Description

The Aura Ozone Monitoring Instrument level-2 near UV Aerosol data product 'OMAERUV', recently re-processed using an enhanced algorithm, is now released (April 2012) to the public. The data are available from the NASA Goddard Earth Sciences Data and Information Services Center (GES DISC). The shortname for this Level-2 near-UV Aerosol Product is OMAERUV_V003. The OMAERUV retrieval algorithm is developed by the US OMI Team Scientists. Dr. Omar Torres (GSFC/NASA) is the principal investigator of this product. The OMAERUV product contains Aerosol Absorption and Aerosol Extinction Optical Depths, and Single Scattering Albedo at three different wavelengths (354, 388 and 500 nm), Aerosol Index, and other ancillary and geolocation parameters, in the OMI field of view (13x24 km).

The OMAERUV files are stored in the version 5 EOS Hierarchical Data Format (HDF-EOS5). Each file contains data from the day lit portion of an orbit (~53 minutes). There are approximately 14 orbits per day. The maximum file size for the OMAERUV data product is about 6 Mbytes.

Product Summary

Platforms
Aura
Instruments
OMI
Spatial Extent

N: 90 S: -90 E: 180 W: -180

Geographic Region
GLOBAL
Coordinate System
CARTESIAN
Granule Spatial Representation
GEODETIC
Temporal Extent
2004-10-01 to Present
Data Partner
Goddard Earth Sciences Data and Information Services Center (formerly Goddard DAAC), Terrestrial Information Systems Laboratory, Earth Sciences Division, Science and Exploration Directorate, Goddard Space Flight Center, NASA (NASA/GSFC/SED/ESD/TISL/GESDI
Concept ID
C1239966768-GES_DISC
Data State
ACTIVE
Number of Files/Granules
109597
Processing Level
2
Published
Updated
Science Keywords
Aerosol Extinction ,
Aerosol Optical Depth/Thickness

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

Torres, O. O. (2012). OMI/Aura Near UV Aerosol Optical Depth and Single Scattering Albedo 1-orbit L2 Swath 13x24 km [Data set]. NASA Goddard Earth Sciences Data and Information Services Center. https://doi.org/10.5067/AURA/OMI/DATA2004 Date Accessed: 2026-01-08

Documents

READ-ME

PI DOCUMENTATION

ALGORITHM THEORETICAL BASIS DOCUMENT (ATBD)

GENERAL DOCUMENTATION

PUBLICATIONS

Variables

Variables are a set of physical properties whose values determine the characteristics or behavior of something. For example, temperature and pressure are variables of the atmosphere. Parameters and variables can be used interchangeably. Variable level attributes provide individual information for each variable.

The Name in this table is the variable name. Fill value indicates missing or undefined data points in a variable. Valid range is the range of values the variable can store. Scale factor is used to increase or decrease the size of an object and can be used to correct for distortion. For questions on a specific variable, please use the Earthdata Forum.

Name Description Units Data Type Fill Value Valid Range Scale Factor
HDFEOS/SWATHS/Aerosol NearUV Swath/Data Fields/AerosolAbsOpticalDepthVsHeight Aerosol Absorption Optical Depth (tau_abs) at 5 levels NoUnits float32 -1.2676506002282E+30 N/A N/A
HDFEOS/SWATHS/Aerosol NearUV Swath/Data Fields/AerosolOpticalDepthVsHeight Aerosol Optical Depth (tau) at 5 levels NoUnits float32 -1.2676506002282E+30 N/A N/A
HDFEOS/SWATHS/Aerosol NearUV Swath/Data Fields/AerosolSingleScattAlbVsHeight Aerosol Single Scattering Albedo (omega0) at 5 levels NoUnits float32 -1.2676506002282E+30 N/A N/A
HDFEOS/SWATHS/Aerosol NearUV Swath/Data Fields/AerosolType Aerosol Type NoUnits uint8 255 N/A N/A
HDFEOS/SWATHS/Aerosol NearUV Swath/Data Fields/AIRSCO_Flags AIRSCO_Flags NoUnits uint8 255 N/A N/A
HDFEOS/SWATHS/Aerosol NearUV Swath/Data Fields/AIRSL3COvalue AIRS CO L3 data NoUnits float32 -9999 N/A N/A
HDFEOS/SWATHS/Aerosol NearUV Swath/Data Fields/AlgorithmFlagsVsHeight Algorithm Flags Vs Height NoUnits uint16 65535 N/A N/A
HDFEOS/SWATHS/Aerosol NearUV Swath/Data Fields/AlgorithmFlags_AerosolIndex Algorithm Flags for AerosolIndex NoUnits uint16 65535 N/A N/A
HDFEOS/SWATHS/Aerosol NearUV Swath/Data Fields/CloudFraction Cloud Fraction NoUnits float32 -1.2676506002282E+30 N/A N/A
HDFEOS/SWATHS/Aerosol NearUV Swath/Data Fields/CloudOpticalDepth Cloud Optical Depth NoUnits float32 -1.2676506002282E+30 N/A N/A
HDFEOS/SWATHS/Aerosol NearUV Swath/Data Fields/FinalAerosolAbsOpticalDepth Best Aerosol Absorption Optical Depth (tau_abs) NoUnits float32 -1.2676506002282E+30 N/A N/A
HDFEOS/SWATHS/Aerosol NearUV Swath/Data Fields/FinalAerosolLayerHeight Final Aerosol Layer Height (km) km float32 -1.2676506002282E+30 N/A N/A
HDFEOS/SWATHS/Aerosol NearUV Swath/Data Fields/FinalAerosolOpticalDepth Best Aerosol Optical Depth (tau) NoUnits float32 -1.2676506002282E+30 N/A N/A
HDFEOS/SWATHS/Aerosol NearUV Swath/Data Fields/FinalAerosolSingleScattAlb Best Aerosol Single Scattering Albedo (omega0) NoUnits float32 -1.2676506002282E+30 N/A N/A
HDFEOS/SWATHS/Aerosol NearUV Swath/Data Fields/FinalAlgorithmFlags Final Algorithm Flags NoUnits uint16 65535 N/A N/A
HDFEOS/SWATHS/Aerosol NearUV Swath/Data Fields/FinalImRefIdx FinalImRefIdx NoUnits float32 -1.2676506002282E+30 N/A N/A
HDFEOS/SWATHS/Aerosol NearUV Swath/Data Fields/HeightFlags Height Flags NoUnits uint8 255 N/A N/A
HDFEOS/SWATHS/Aerosol NearUV Swath/Data Fields/ImaRefractiveIndex Imaginary refractive Index NoUnits float32 -1.2676506002282E+30 N/A N/A
HDFEOS/SWATHS/Aerosol NearUV Swath/Data Fields/MeasurementQualityFlags Measurement Quality Flags NoUnits uint16 65535 N/A N/A
HDFEOS/SWATHS/Aerosol NearUV Swath/Data Fields/NormRadiance Normalized Radiance NoUnits float32 -1.2676506002282E+30 N/A N/A
HDFEOS/SWATHS/Aerosol NearUV Swath/Data Fields/PixelQualityFlags Pixel Quality Flags NoUnits uint16 65535 N/A N/A
HDFEOS/SWATHS/Aerosol NearUV Swath/Data Fields/Reflectivity Lambert Equivalent Reflectivity NoUnits float32 -1.2676506002282E+30 N/A N/A
HDFEOS/SWATHS/Aerosol NearUV Swath/Data Fields/Residue Residue NoUnits float32 -1.2676506002282E+30 N/A N/A
HDFEOS/SWATHS/Aerosol NearUV Swath/Data Fields/SurfaceAlbedo Surface Albedo NoUnits float32 -1.2676506002282E+30 N/A N/A
HDFEOS/SWATHS/Aerosol NearUV Swath/Data Fields/UVAerosolIndex UV Aerosol Index NoUnits float32 -1.2676506002282E+30 N/A N/A
HDFEOS/SWATHS/Aerosol NearUV Swath/Data Fields/Wavelength Wavelength nm float32 -1.2676506002282E+30 N/A N/A
HDFEOS/SWATHS/Aerosol NearUV Swath/Geolocation Fields/FoV75Area Mean Area for 75% Field of View Pixels on the WGS-85 Ellipsoid km^2 float32 -1.2676506002282E+30 N/A N/A
HDFEOS/SWATHS/Aerosol NearUV Swath/Geolocation Fields/FoV75CornerLatitude Corner Latitudes for 75% Field of View Pixels on the WGS-85 Ellipsoid (CCW relative to flight direction: LL,LR,UR,UL) deg float32 -1.2676506002282E+30 N/A N/A
HDFEOS/SWATHS/Aerosol NearUV Swath/Geolocation Fields/FoV75CornerLongitude Corner Longitudes for 75% Field of View Pixels on the WGS-85 Ellipsoid (CCW relative to flight direction: LL,LR,UR,UL) deg float32 -1.2676506002282E+30 N/A N/A
HDFEOS/SWATHS/Aerosol NearUV Swath/Geolocation Fields/GroundPixelQualityFlags Ground Pixel Quality Flags NoUnits uint16 65535 N/A N/A
HDFEOS/SWATHS/Aerosol NearUV Swath/Geolocation Fields/Latitude Geodetic Latitude (deg) deg float32 -1.2676506002282E+30 N/A N/A
HDFEOS/SWATHS/Aerosol NearUV Swath/Geolocation Fields/Longitude Geodetic Longitude (deg) deg float32 -1.2676506002282E+30 N/A N/A
HDFEOS/SWATHS/Aerosol NearUV Swath/Geolocation Fields/RelativeAzimuthAngle Relative (sun + 180 - view) Azimuth Angle (deg) deg(EastofNorth) float32 -1.2676506002282E+30 N/A N/A
HDFEOS/SWATHS/Aerosol NearUV Swath/Geolocation Fields/SecondsInDay Seconds of Day at Start of Scan s float32 -1.2676506002282E+30 N/A N/A
HDFEOS/SWATHS/Aerosol NearUV Swath/Geolocation Fields/SolarZenithAngle Solar Zenith Angle (deg) deg float32 -1.2676506002282E+30 N/A N/A
HDFEOS/SWATHS/Aerosol NearUV Swath/Geolocation Fields/TerrainPressure Terrain Pressure (mbar) mbar float32 -1.2676506002282E+30 N/A N/A
HDFEOS/SWATHS/Aerosol NearUV Swath/Geolocation Fields/Time Time at Start of Scan (s, TAI93) s float64 -1.2676506002282E+30 N/A N/A
HDFEOS/SWATHS/Aerosol NearUV Swath/Geolocation Fields/ViewingZenithAngle Viewing Zenith Angle (deg) deg float32 -1.2676506002282E+30 N/A N/A
HDFEOS/SWATHS/Aerosol NearUV Swath/Geolocation Fields/XTrackQualityFlags XTrack Quality Flags NoUnits uint8 255 N/A N/A
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