GSFC EPIC/MERRA2 L3 1x1deg Monthly Tropospheric Column Ozone V1 (TrCO3_Monthly_EPIC) at GES DISC

The GSFC EPIC/MERRA2 L3 1x1deg Monthly Tropospheric Column Ozone product (TrCO3_Monthly_EPIC) contains tropospheric column ozone amounts averaged by month from 2015 to present. Measurements from four UV channels of the Earth Polychromatic Imaging Camera (EPIC) on the Deep Space Climate ObserVatoRy (DSCOVR) are used to reconstruct distributions of global ozone. 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 31.1 MB.

Data and Resources

Additional Info

Field Value
Maintainer Earthdata Forum
Last Updated June 3, 2026, 02:02 (UTC)
Created June 3, 2026, 02:02 (UTC)
accessLevel public
bureauCode {026:00}
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
harvest_object_id 15490e02-8af4-48a7-b46a-81de2dcc1a58
harvest_source_id b99e41c6-fe79-4c19-bbc3-9b6c8111bfac
harvest_source_title Science Discovery Engine
identifier 10.5067/IK4G93YGW9VU
license https://www.usa.gov/government-works
modified 2026-06-01T22:16:02Z
programCode {026:000}
publisher NASA/GSFC/SED/ESD/TISL/GESDISC
resource-type Dataset
source_datajson_identifier true
source_hash 2c5695ea6b0fff7597564975181479f67c0e91192cb0c1287c19531f483bba92
source_schema_version 1.1
spatial ["CARTESIAN", [{"WestBoundingCoordinate": -180, "NorthBoundingCoordinate": 90, "EastBoundingCoordinate": 180, "SouthBoundingCoordinate": -90}]]
temporal 2015-01-01/2024-12-31
theme {"Earth Science"}