GSFC OMPS/MERRA2 L3 1x1deg Monthly Tropospheric Column Ozone V1 (TrCO3_Monthly_OMPS)

The GSFC OMPS/MERRA2 L3 1x1deg Monthly Tropospheric Column Ozone product (TrCO3_Monthly_OMPS) contains tropospheric column ozone amounts averaged by month from 2012 to present. Total column measurements are obtained from the Ozone Mapping Profiler Suite (OMPS) nadir-mapper on the Suomi National Polar orbiting Partnership (NPP) satellite. Tropospheric column ozone (TCO) is derived by subtracting the stratospheric column ozone (SCO) estimated from the Modern-Era Retrospective analysis for Research and Applications, Version 2 (MERRA2) ozone fields.

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 40.5 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 82362723-9284-4ff1-8fba-85a99685ec4a
harvest_source_id b99e41c6-fe79-4c19-bbc3-9b6c8111bfac
harvest_source_title Science Discovery Engine
identifier 10.5067/2QAWA1P288OW
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 05296dad3e25b5af9c5a173f52ef2d4ba45668e6d446454b3ac7bd16cdb05046
source_schema_version 1.1
spatial ["CARTESIAN", [{"WestBoundingCoordinate": -180, "NorthBoundingCoordinate": 90, "EastBoundingCoordinate": 180, "SouthBoundingCoordinate": -90}]]
temporal 2012-01-01/2026-08-17
theme {"Earth Science"}