GSFC OMI/MLS L3 1x1deg Monthly Tropospheric Column Ozone V2 (TrCO3_Monthly_OMIMLS)

The GSFC OMI/MLS L3 1x1deg Monthly Tropospheric Column Ozone product (TrCO3_Monthly_OMIMLS) contains tropospheric column ozone amounts averaged by month from October 2004 to present. Total column measurements are obtained from the Ozone Monitoring Instrument (OMI) on the EOS Aura satellite. Tropospheric column ozone (TCO) is derived by subtracting the stratospheric column ozone (SCO) estimated from the Microwave Limb Sounder (MLS) ozone profiles.

The data are stored in a single netCDF (classic) file. Data are averaged monthly at 1 degree x 1 degree resolution globally. The single data file size is 63.0 MB.

Data and Resources

Additional Info

Field Value
Maintainer Earthdata Forum
Last Updated August 25, 2026, 10:48 (UTC)
Created June 3, 2026, 02:34 (UTC)
accessLevel public
bureauCode {026:00}
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
harvest_object_id 2a19ac83-288b-4e25-af8a-326c9612dc15
harvest_source_id b99e41c6-fe79-4c19-bbc3-9b6c8111bfac
harvest_source_title Science Discovery Engine
identifier 10.5067/JGL6VRWFIKZH
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
source_datajson_identifier true
source_hash c1d635e51950953f9642d5dc4c17191f74390261a91f1831d21ce1cf7973960b
source_schema_version 1.1
spatial ["CARTESIAN", [{"WestBoundingCoordinate": -180, "NorthBoundingCoordinate": 90, "EastBoundingCoordinate": 180, "SouthBoundingCoordinate": -90}]]
temporal 2004-10-01/2026-08-17
theme {"Earth Science"}