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Description
The Aura Ozone Monitoring Instrument Level-2 Ozone Profile data product OMO3PR (Version 003) is now available from the NASA Goddard Earth Sciences Data and Information Services Center (GES DISC) for the public access. OMI Level-2 ozone profile product, OMO3PR at the pixel resolution 13x 48 km (at nadir), is based on the optimal estimation algorithm (Rodgers, 2000) with climatological ozone profiles as a-priori information. The OMO3PR retrieval algorithm uses spectral radiance values from the UV1 channel (270 nm to 308.5 nm) and from the first part of the UV2 channel (311.5 nm to 33 0 nm). OMO3PR product provides ozone values (in Dobson unit) for 18 atmospheric layers. It also provides a-priori ozone profile values, error covariance matrix, averaging kernel and some ancillary information such as time, latitude, longitude, solar zenith and viewing zenith angles and quality flags. The short name for this Level-2 OMI ozone profile product is OMO3PR. The lead scientist for this product is Dr. Johan de Haan.
The OMO3PR product files are stored in the version 5 Hierarchical Data Format (HDF-EOS5). Each file contains data from the day lit portion of an orbit (approximately 53 minutes). There are approximately 14 orbits per day thus the total data volume is approximately 150 GB/day.
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
C1239966827-GES_DISC
Data State
COMPLETE
Number of Files/Granules
86579
Processing Level
2
Published
Updated
Science Keywords
Atmospheric Ozone
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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De Haan, J., & Veefkind, P. (2009). OMI/Aura Ozone (O3) Profile 1-Orbit L2 Swath 13x48km [Data set]. NASA Goddard Earth Sciences Data and Information Services Center. https://doi.org/10.5067/AURA/OMI/DATA2026 Date Accessed: 2026-05-19
De Haan, Johan, and Pepijn Veefkind. “OMI/Aura Ozone (O3) Profile 1-Orbit L2 Swath 13x48km.” NASA Goddard Earth Sciences Data and Information Services Center, 2009. doi:10.5067/AURA/OMI/DATA2026. Date Accessed: 2026-05-19
De Haan, Johan, and Pepijn Veefkind. OMI/Aura Ozone (O3) Profile 1-Orbit L2 Swath 13x48km. NASA Goddard Earth Sciences Data and Information Services Center, 2009, doi:10.5067/AURA/OMI/DATA2026. Date Accessed: 2026-05-19
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
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Additional information on variable attributes is typically available in the data,
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