OMI/Aura Ozone (O3) Total Column Daily L2 Global Gridded 0.25 degree x 0.25 degree V3 (OMTO3G) at GES DISC

Description

This Level-2G daily global gridded product OMTO3G is based on the pixel level OMI Level-2 Total Ozone Product OMTO3. The OMTO3 product is from the enhanced TOMS version-8 algorithm that essentially uses the ultraviolet radiance data at 317.5 and 331.2 nm. The OMTO3G data product is a special Level-2 Global Gridded Product where pixel level data are binned into 0.25x0.25 degree global grids. It contains the data for all L2 scenes that have observation time between UTC times of 00:00:00 and 23:59:59.9999. All data pixels that fall in a grid box are saved Without Averaging. Scientists can apply a data filtering scheme of their choice and create new gridded products. The OMTO3G data product contains almost all parameters that are contained in the OMTO3. For example, in addition to the total column ozone it also contains UV aerosol index, cloud fraction, cloud pressure, terrain height, geolocation, solar and satellite viewing angles, and quality flags. The OMTO3G 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 OMTO3G data product is about 150 Mbytes.

Resources

Name Format Description Link
33 File Specification Document https://docserver.gesdisc.eosdis.nasa.gov/repository/Mission/OMI/3.3_ScienceDataProductDocumentation/3.3.2_ProductRequirements_Designs/OMTO3G_FileSpec_V003.pdf
34 OMTO3G_003.png https://docserver.gesdisc.eosdis.nasa.gov/public/project/Images/OMTO3G_003.png
21 Access the dataset landing page from the GES DISC website. https://disc.gsfc.nasa.gov/datacollection/OMTO3G_003.html
21 Aura Project Home Page https://aura.gsfc.nasa.gov/
21 Access the data via the OPeNDAP protocol. https://acdisc.gesdisc.eosdis.nasa.gov/opendap/HDF-EOS5/Aura_OMI_Level2G/OMTO3G.003/contents.html
33 OMI Algorithm Theoretical Basis Documents https://docserver.gesdisc.eosdis.nasa.gov/repository/Mission/OMI/3.3_ScienceDataProductDocumentation/3.3.4_ProductGenerationAlgorithm/ATBD-OMI-02.pdf
21 https://projects.knmi.nl/omi/research/documents/
21 Search results for publications that cite this dataset by its DOI. https://scholar.google.com/scholar?q=10.5067%2FAura%2FOMI%2FDATA2025
21 Access the data via HTTPS. https://acdisc.gsfc.nasa.gov/data/Aura_OMI_Level2G/OMTO3G.003/
21 Use the Earthdata Search to find and retrieve data sets across multiple data centers. https://search.earthdata.nasa.gov/search?q=OMTO3G_003
33 README Document https://acdisc.gesdisc.eosdis.nasa.gov/data/s4pa/Aura_OMI_Level2G/OMTO3G.003/doc/README.OMI_DUG.pdf
33 OMI Data User's Guide https://docserver.gesdisc.eosdis.nasa.gov/repository/Mission/OMI/3.3_ScienceDataProductDocumentation/3.3.2_ProductRequirements_Designs/README.OMI_DUG.pdf
21 OMI KNMI Home Page http://projects.knmi.nl/omi/research/news/newsWrap.php?language=only_enhttps%3A%2F%2Fwww.knmi.nl%2FomitimeFrame%3Dlatesthttps%3A%2F%2Fwww.knmi.nl%2Fomichoise%3Dpage

Tags

  • atmospheric-radiation
  • aerosols
  • atmosphere
  • atmospheric-chemistry
  • earth-science

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