OMI/Aura Effective Cloud Pressure and Fraction (Raman Scattering) Daily L2 Global Gridded 0.25 degree x 0.25 degree V3 (OMCLDRRG) at GES DISC

Description

This Level-2G daily global gridded product OMCLDRRG is based on the pixel level OMI Level-2 CLDRR product OMCLDRR. This level-2G global cloud product (OMCLDRRG) provides effective cloud pressure and effective cloud fraction that is based on the least square fitting of the Ring spectrum (filling-in of Fraunhofer lines in the range 392 to 398 nm due to rotational Raman scattering). This product also contains many ancillary and derived parameters, terrain and geolocation information, solar and satellite viewing angles, and quality flags. The algorithm lead for the products OMCLDRR and OMCLDRRG is NASA OMI scientist Dr. Joanna Joinner. OMCLDRRG data product is a special Level-2G Gridded Global Product where pixel level data (OMCLDRR)are binned into 0.25x0.25 degree global grids. It contains the OMCLDRR 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 OMCLDRRG data products are stored in the version 5 EOS Hierarchical Data Format (HDF-EOS5). Each daily file contains data from the day lit portion of the orbits (~14 orbits). The average file size for the OMCLDRRG data product is about 75 Mbytes.

Resources

Name Format Description Link
21 https://projects.knmi.nl/omi/research/documents/
33 File Specification Document https://docserver.gesdisc.eosdis.nasa.gov/repository/Mission/OMI/3.3_ScienceDataProductDocumentation/3.3.2_ProductRequirements_Designs/OMCLDRRG_FileSpec_V003.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 Search results for publications that cite this dataset by its DOI. https://scholar.google.com/scholar?q=10.5067%2FAura%2FOMI%2FDATA2011
34 OMCLDRRG_003.png https://docserver.gesdisc.eosdis.nasa.gov/public/project/Images/OMCLDRRG_003.png
21 Access the dataset landing page from the GES DISC website. https://disc.gsfc.nasa.gov/datacollection/OMCLDRRG_003.html
21 Access the data via HTTPS. https://acdisc.gsfc.nasa.gov/data/Aura_OMI_Level2G/OMCLDRRG.003/
21 Use the Earthdata Search to find and retrieve data sets across multiple data centers. https://search.earthdata.nasa.gov/search?q=OMCLDRRG_003
10 README Document https://acdisc.gesdisc.eosdis.nasa.gov/data/Aura_OMI_Level2G/OMCLDRRG.003/doc/OMCLDRRG_OSIPS_README_V003.doc
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
33 Release details and known issues https://docserver.gesdisc.eosdis.nasa.gov/repository/Mission/OMI/3.3_ScienceDataProductDocumentation/3.3.2_ProductRequirements_Designs/L2_cloud_spec_issue2_3.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
21 Access the data via the OPeNDAP protocol. https://acdisc.gesdisc.eosdis.nasa.gov/opendap/HDF-EOS5/Aura_OMI_Level2G/OMCLDRRG.003/contents.html
21 Aura Project Home Page https://aura.gsfc.nasa.gov/

Tags

  • atmosphere
  • clouds
  • earth-science

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