OMI/Aura Glyoxal (CHOCHO) Total Column 1-orbit L2 S wath 13x24 km V004 (OMCHOCHO)

The Aura Ozone Monitoring Instrument (OMI) Glyoxal Product OMCHOCHO contains total vertical column CHOCHO, standard errors (rms and sigma), quality flags, geolocation and other ancillary information. The algorithm leads for this product are the US OMI scientists Gonzalo Gonzalez Abad and Hyeong-Ahn Kwon from the Harvard-Smithsonian Center, Cambridge, MA.

The OMCHOCHO files are stored in the netCDF-4 format. Each file contains data from the day lit portion of an orbit (~53 minutes). There are approximately 14 orbits per day. The average file size for the OMCHOCHO data product is about 35 MB.

Data and Resources

Additional Info

Field Value
Maintainer Earthdata Forum
Last Updated August 25, 2026, 10:29 (UTC)
Created June 3, 2026, 01:32 (UTC)
accessLevel public
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harvest_source_id b99e41c6-fe79-4c19-bbc3-9b6c8111bfac
harvest_source_title Science Discovery Engine
identifier 10.5067/MEASURES/CH2O_CHOCHO_H2O/DATA2022
license https://www.usa.gov/government-works
modified 2026-08-17T22:16:03Z
programCode {026:000}
publisher NASA/GSFC/SED/ESD/TISL/GESDISC
resource-type Dataset
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spatial ["CARTESIAN", [{"WestBoundingCoordinate": -180, "NorthBoundingCoordinate": 90, "EastBoundingCoordinate": 180, "SouthBoundingCoordinate": -90}]]
temporal 2004-10-01/2026-08-17
theme {"Earth Science"}