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 Older versions will no longer be available and are superseded by Version 11.2r.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 September 8, 2026, 06:37 (UTC)
Created April 1, 2025, 18:13 (UTC)
accessLevel public
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harvest_source_id b99e41c6-fe79-4c19-bbc3-9b6c8111bfac
harvest_source_title Science Discovery Engine
identifier 10.5067/QDEQEX2FTWF7
license https://www.usa.gov/government-works
modified 2026-08-31T22:16:04Z
programCode {026:000}
publisher NASA/GSFC/SED/ESD/TISL/GESDISC
resource-type Dataset
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temporal 2019-11-30/2026-08-31
theme {"Earth Science"}