OMI/Aura Sulphur Dioxide (SO2) Total Column 1-orbit L2 Swath 13x24 km V003 (OMSO2) at GES DISC

Description

The Aura Ozone Monitoring Instrument (OMI) level 2 sulphur dioxide (SO2) total column product (OMSO2) has been updated with a principal component analysis (PCA)-based algorithm (v2) with new SO2 Jacobian lookup tables and a priori profiles that significantly improve retrievals for anthropogenic SO2. The data files (or granules) contain different estimates of the vertical column density (VCD) of SO2 depending on the users investigating anthropogenic or volcanic sources. Files also contain quality flags, geolocation and other ancillary information. The lead scientist for the OMSO2 product is Can Li. The OMSO2 files are stored in the version 5 EOS Hierarchical Data Format (HDF-EOS5). Each file contains data from the daylit half of an orbit (~53 minutes). There are approximately 14 orbits per day. The resolution of the data is 13x24 km2 at nadir, with a swath width of 2600 km and 60 pixels per scan line every 2 seconds.

Resources

Name Format Description Link
34 OMSO2_003.png https://docserver.gesdisc.eosdis.nasa.gov/public/project/Images/OMSO2_003.png
21 Access the data via HTTPS. https://aura.gesdisc.eosdis.nasa.gov/data/Aura_OMI_Level2/OMSO2.003/
33 README Document https://aura.gesdisc.eosdis.nasa.gov/data/Aura_OMI_Level2/OMSO2.003/doc/OMSO2Readme_V2.pdf
21 SO2 Monitoring Home Page https://so2.gsfc.nasa.gov/
21 Aura Project Home Page https://aura.gsfc.nasa.gov/
21 List of SO2 Publications https://so2.gsfc.nasa.gov/pubs.html
21 Access the dataset landing page from the GES DISC website. https://disc.gsfc.nasa.gov/datacollection/OMSO2_003.html
21 Search results for publications that cite this dataset by its DOI. https://scholar.google.com/scholar?q=10.5067%2FAura%2FOMI%2FDATA2022
21 Use the Earthdata Search to find and retrieve data sets across multiple data centers. https://search.earthdata.nasa.gov/search?q=OMSO2_003
21 Access the data via the OPeNDAP protocol. https://aura.gesdisc.eosdis.nasa.gov/opendap/Aura_OMI_Level2/OMSO2.003/contents.html
21 File Specification Document https://docserver.gesdisc.eosdis.nasa.gov/public/project/OMI/OMSO2_2020-06-04.fs

Tags

  • atmosphere
  • atmospheric-chemistry
  • earth-science

Topics

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