OMI/Aura Cloud Pressure and Fraction (O2-O2 Absorption) Daily L2 Global Gridded 0.25 degree x 0.25 degree V3 (OMCLDO2G) at GES DISC

Description

This Level-2G daily global gridded product OMCLDO2G is based on the pixel level OMI Level-2 CLDO2 product OMCLDO2. This level-2G global cloud product (OMCLDO2G) is based on the spectral fitting of O2-O2 absorption band at 477 nm using DOAS technique. This product contains cloud pressure, cloud fraction, slant column O2-O2 and Ozone, Ring coefficients, uncertainties in derived parameters, terrain and geolocation information, solar and satellite viewing angles, and quality flags. The short name for this Level-2 OMI cloud product is OMCLDO2G and the lead scientist for this product and for OMCLDO2 (the data source of OMCLDO2G) is KNMI scientist Dr. Pepijn Veefkind. OMCLDO2G data product is a special Level-2 Global Gridded Product where pixel level data (OMCLDO2) are binned into 0.25x0.25 degree global grids. It contains the OMCLDO2 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 are saved 'Without Averaging'. Scientists can apply a data filtering scheme of their choice and create new gridded products. The OMCLDO2G product files are stored in the version 5 Hierarchical Data Format (HDF-EOS5). Each daily data file contains data from the day lit portion of the orbits (~14 orbits) and is roughly 85 MB in size.

Resources

Name Format Description Link
21 Use the Earthdata Search to find and retrieve data sets across multiple data centers. https://search.earthdata.nasa.gov/search?q=OMCLDO2G_003
21 Search results for publications that cite this dataset by its DOI. https://scholar.google.com/scholar?q=10.5067%2FAura%2FOMI%2FDATA2008
34 OMCLDO2G_003.png https://docserver.gesdisc.eosdis.nasa.gov/public/project/Images/OMCLDO2G_003.png
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/OMCLDO2G.003/contents.html
21 Access the dataset landing page from the GES DISC website. https://disc.gsfc.nasa.gov/datacollection/OMCLDO2G_003.html
21 README Document https://acdisc.gesdisc.eosdis.nasa.gov/data/Aura_OMI_Level2G/OMCLDO2G.003/doc/README.OMCLDO2G.txt
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 File Specification Document http://docserver.gesdisc.eosdis.nasa.gov/public/project/OMI/OMCLDO2G.fs
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
33 OMI Algorithm Theoretical Basis Documents https://docserver.gesdisc.eosdis.nasa.gov/repository/Mission/OMI/3.3_ScienceDataProductDocumentation/3.3.4_ProductGenerationAlgorithm/ATBD-OMI-03.pdf
21 https://projects.knmi.nl/omi/research/documents/
21 http://projects.knmi.nl/omi/research/documents/
21 Access the data via HTTPS. https://acdisc.gsfc.nasa.gov/data/Aura_OMI_Level2G/OMCLDO2G.003/

Tags

  • atmosphere
  • clouds
  • earth-science

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