OCO-2 Level 2 geolocated XCO2 retrieval results and algorithm diagnostic information, Retrospective Processing V10r (OCO2_L2_Diagnostic) at GES DISC

Description

Version 10r is the current version of the data set. Older versions will no longer be available and are superseded by Version 10r. In early 2021, the OCO Team identified an issue with OCO-2 level 2 products processed since January 28, 2020. The Ancillary Geometric Product (AGAP) file, a static file used in OCO-2 Geolocation processing, was inadvertently replaced with an obsolete version. This AGAP file included a ~300 m pointing error. As a result, all OCO-2 Level 2, version 10r, data files for the period January 28 - December 31, 2020, were corrected and replaced. The replacement process was completed by the end of June, 2021. The significance of this error has been described in Kiel et al. (2019; doi:10.5194/amt-12-2241-2019). 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. This collection encompass various data fields used for diagnostic and pre-processing, including aerosol optical depth, albedo, absorption coefficients, fluorescence, XCO2 uncertainties, averaging kernel, surface type, etc. This is the retrospective processing where the calibration data is estimated from the full timeseries of data (before, during, and after the measurements), and is expected to be of slightly higher quality.

Resources

Name Format Description Link
5 https://docserver.gesdisc.eosdis.nasa.gov%2Fpublic%2Fproject%2FOCO%2FOCO2_L2_Dia_10r__02242021.png
5 https://oco2.gesdisc.eosdis.nasa.gov%2Fdata%2FOCO2_DATA%2FOCO2_L2_Diagnostic.10r%2F
5 https://docserver.gesdisc.eosdis.nasa.gov%2Fpublic%2Fproject%2FOCO%2FOCO2_OCO3_B10_DUG.pdf
5 https://github.com%2Fnasa%2FRtRetrievalFramework
5 https://disc.gsfc.nasa.gov%2Fdatacollection%2FOCO2_L2_Diagnostic_10r.html
5 https://docserver.gesdisc.eosdis.nasa.gov%2Fpublic%2Fproject%2FOCO%2FREADME.OCO2.pdf
5 https://search.earthdata.nasa.gov%2Fsearch%3Fq%3DOCO2_L2_Diagnostic
5 https://oco2.gesdisc.eosdis.nasa.gov%2Fopendap%2FOCO2_L2_Diagnostic.10r%2Fcontents.html
5 https://ocov2.jpl.nasa.gov%2F
5 https://disc.gsfc.nasa.gov%2Finformation%2Fhowto%3Ftitle%3DHow%2520to%2520download%2520a%2520spatial%2520and%2520variable%2520subset%2520of%2520Level%25201B%2520data%2520using%2520OPeNDAP
5 https://docserver.gesdisc.eosdis.nasa.gov%2Fpublic%2Fproject%2FOCO%2FSDOS_SIS_L2Diagnostic.V7.pdf
5 https://ocov2.jpl.nasa.gov%2Fscience%2Fpublications%2F
5 https://disc.gsfc.nasa.gov%2Finformation%2Fdocuments%3Ftitle%3DOCO%2520Known%2520Data%2520Issues
5 https://disc.gsfc.nasa.gov%2Finformation%2Fdocuments%3Ftitle%3DOCO-2%2520Documents
34 OCO2_L2_Dia_10r__02242021.png https://docserver.gesdisc.eosdis.nasa.gov/public/project/OCO/OCO2_L2_Dia_10r__02242021.png
21 OCO2_L2_Diagnostic_10r.html https://disc.gsfc.nasa.gov/datacollection/OCO2_L2_Diagnostic_10r.html
5 OCO2_L2_Diagnostic.10r https://oco2.gesdisc.eosdis.nasa.gov/data/OCO2_DATA/OCO2_L2_Diagnostic.10r/
5 https://search.earthdata.nasa.gov/search?q=OCO2_L2_Diagnostic
21 contents.html https://oco2.gesdisc.eosdis.nasa.gov/opendap/OCO2_L2_Diagnostic.10r/contents.html
5 https://ocov2.jpl.nasa.gov/
33 README.OCO2.pdf https://docserver.gesdisc.eosdis.nasa.gov/public/project/OCO/README.OCO2.pdf
33 OCO2_OCO3_B10_DUG.pdf https://docserver.gesdisc.eosdis.nasa.gov/public/project/OCO/OCO2_OCO3_B10_DUG.pdf
5 https://disc.gsfc.nasa.gov/information/howto?title=How%2520to%2520download%2520a%2520spatial%2520and%2520variable%2520subset%2520of%2520Level%25201B%2520data%2520using%2520OPeNDAP
33 SDOS_SIS_L2Diagnostic.V7.pdf https://docserver.gesdisc.eosdis.nasa.gov/public/project/OCO/SDOS_SIS_L2Diagnostic.V7.pdf
5 https://github.com/nasa/RtRetrievalFramework
5 https://ocov2.jpl.nasa.gov/science/publications/
5 https://disc.gsfc.nasa.gov/information/documents?title=OCO%2520Known%2520Data%2520Issues
5 https://disc.gsfc.nasa.gov/information/documents?title=OCO-2%2520Documents
0 The metadata's original source. https://cmr.earthdata.nasa.gov/search/concepts/C1685783941-GES_DISC.iso19115

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  • earth-science-atmospheric-chemistry-atmosphere-carbon-and-hydrocarbon-compounds-atmospheric-car

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