OCO-2 Level 2 CO2 prior based on CO2 monthly flask record, global meteorology, and age of air Retrospective Processing V11.2r (OCO2_L2_CO2Prior)

Version 11.2r is the current version of the data set. Older versions will no longer be available and are superseded by Version 11.2r.

The Orbiting Carbon Observatory is the first NASA mission designed to collect space-based measurements of atmospheric carbon dioxide with the precision, resolution, and coverage needed to characterize the processes controlling its buildup in the atmosphere. The OCO-2 project uses the LEOStar-2 spacecraft that carries a single instrument. It incorporates three high-resolution spectrometers that make coincident measurements of reflected sunlight in the near-infrared CO2 near 1.61 and 2.06 micrometers and in molecular oxygen (O2) A-Band at 0.76 micrometers.

Data and Resources

Additional Info

Field Value
Maintainer Earthdata Forum
Last Updated November 5, 2026, 08:46 (UTC)
Created April 1, 2025, 18:13 (UTC)
Identifier 10.5067/QDEQEX2FTWF7
Modified 2026-11-02T22:15:59Z
Theme {"Earth Science"}
accessLevel public
bureauCode {026:00}
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
harvest_object_id 20360e1f-c6a4-4960-8dfe-f5008c70d712
harvest_source_id b99e41c6-fe79-4c19-bbc3-9b6c8111bfac
harvest_source_title Science Discovery Engine
license https://www.usa.gov/government-works
programCode {026:000}
publisher NASA/GSFC/SED/ESD/TISL/GESDISC
resource-type Dataset
source_datajson_identifier true
source_hash a62f94b55ca959e412c1a25ed13d3f335a6cc8da3bd4c57d1a27d798f3db6118
source_schema_version 1.1
spatial ["GEODETIC", [{"WestBoundingCoordinate": -180, "NorthBoundingCoordinate": 90, "EastBoundingCoordinate": 180, "SouthBoundingCoordinate": -90}]]
temporal 2019-11-30/2026-11-02