OCO2_L2_Standard
10r
OCO-2 Level 2 geolocated XCO2 retrievals results, physical model, Retrospective Processing V10r (OCO2_L2_Standard) at GES DISC
OCO-2 Science Team/Michael Gunson, Annmarie Eldering
OCO-2 Level 2 geolocated XCO2 retrievals results, physical model, Retrospective Processing V10r
OCO2_L2_Standard
2020-08-10T00:00:00.000Z
Greenbelt, MD, USA
Goddard Earth Sciences Data and Information Services Center (GES DISC)
10r
Digital Science Data
DOI
10.5067/6SBROTA57TFH
https://disc.gsfc.nasa.gov/datacollection/OCO2_L2_Standard_10r.html
METADATA AUTHOR
THOMAS
HEARTY
Distributed Active Archive Center Global Change Data Center
Code 610.2
NASA Goddard Space Flight Center
Greenbelt
MD
20771
USA
301-614-6513
Telephone
301-614-5224
Fax
Thomas.J.Hearty@nasa.gov
EARTH SCIENCE
ATMOSPHERE
ATMOSPHERIC CHEMISTRY
CARBON AND HYDROCARBON COMPOUNDS
ATMOSPHERIC CARBON DIOXIDE
CLIMATOLOGY/METEOROLOGY/ATMOSPHERE
Earth Observation Satellites
OCO-2
Orbiting Carbon Observatory-2
OCO-2
Orbiting Carbon Observatory - 2
2014-09-06T00:00:00.000Z
IN WORK
GEODETIC
GEODETIC
-90
90
-180
180
Not provided
GEOGRAPHIC REGION
GLOBAL
OCO-2
Orbiting Carbon Observatory-2
Biases in OCO-2 data are still studied. The project recommends using the "Lite" products.
None currently
The Earth Observing System Data and Information System (EOSDIS) data use policy for NASA data can be accessed at https://earthdata.nasa.gov/earth-observation-data/data-use-policy. For information on how to properly cite and acknowledge data from the NASA GES DISC, refer to https://disc.gsfc.nasa.gov/information/documents?title=data-policy.
English
ARCHIVER
NASA/GSFC/SED/ESD/GCDC/GESDISC
Goddard Earth Sciences Data and Information Services Center (formerly Goddard DAAC), Global Change Data Center, Earth Sciences Division, Science and Exploration Directorate, Goddard Space Flight Center, NASA
https://disc.gsfc.nasa.gov/
DATA CENTER CONTACT
GES DISC HELP DESK SUPPORT GROUP
Goddard Earth Sciences Data and Information Services Center
Code 610.2
NASA Goddard Space Flight Center
Greenbelt
MD
20771
USA
301-614-5224
Telephone
301-614-5224
Fax
gsfc-dl-help-disc@mail.nasa.gov
Online Archive
HDF5
None currently
us-west-2
s3://gesdisc-cumulus-prod-protected/OCO2_DATA/OCO2_L2_Standard.10r/
https://data.gesdisc.earthdata.nasa.gov/s3credentials
https://data.gesdisc.earthdata.nasa.gov/s3credentialsREADME
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 Older versions will no longer be available and are superseded by Version 10r.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 is the output from the algorithm retrieving the column-averaged CO2 dry air mole fraction XCO2 and other quantities from the spectra collected by the Orbiting Carbon Observatory-2 (OCO-2).
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.
GET RELATED VISUALIZATION
https://docserver.gesdisc.eosdis.nasa.gov/public/project/OCO/OCO2_L2_Std_10r_Sep2021.png
DATA SET LANDING PAGE
https://disc.gsfc.nasa.gov/datacollection/OCO2_L2_Standard_10r.html
Access the dataset landing page from the GES DISC website.
GET DATA
DATA TREE
https://oco2.gesdisc.eosdis.nasa.gov/data/OCO2_DATA/OCO2_L2_Standard.10r/
Access the data via HTTP
GET DATA
Earthdata Search
https://search.earthdata.nasa.gov/search?q=OCO2_L2_Standard
Use the Earthdata Search to find and retrieve data sets across multiple data centers.
USE SERVICE API
OPENDAP DATA
https://oco2.gesdisc.eosdis.nasa.gov/opendap/OCO2_L2_Standard.10r/contents.html
Access the data via the OPeNDAP protocol.
PROJECT HOME PAGE
https://ocov2.jpl.nasa.gov/
OCO-2 Project Home Page
VIEW RELATED INFORMATION
READ-ME
https://docserver.gesdisc.eosdis.nasa.gov/public/project/OCO/README.OCO2.pdf
README document
VIEW RELATED INFORMATION
USER'S GUIDE
https://oco2.gesdisc.eosdis.nasa.gov/data//OCO2_DATA/OCO2_L2_Standard.10r/doc/README.OCO2.pdf
product README file
VIEW RELATED INFORMATION
ALGORITHM THEORETICAL BASIS DOCUMENT (ATBD)
https://docserver.gesdisc.eosdis.nasa.gov/public/project/OCO/OCO_L2_ATBD.pdf
VIEW RELATED INFORMATION
PI DOCUMENTATION
https://docserver.gesdisc.eosdis.nasa.gov/public/project/OCO/SDOS_SIS_L2Standard.V7.pdf
Software Interface Specification
DOWNLOAD SOFTWARE
https://github.com/nasa/RtRetrievalFramework
This software (NASA NTR-49044) retrieves a set of atmospheric/surface/instrument parameters from a simultaneous fit to spectra from multiple absorption bands. The software uses an iterative, non-linear retrieval technique (optimal estimation). After the retrieval process has converged, the software performs an error analysis. The products of the software include all quantities needed to understand the information content of the measurement, its uncertainty, and its dependence on interfering atmospheric properties.
Jet Propulsion Laboratory, California Institute of Technology.
Copyright 2016 California Institute of Technology.
U.S. Government sponsorship acknowledged.
VIEW RELATED INFORMATION
GENERAL DOCUMENTATION
https://ocov2.jpl.nasa.gov/science/publications/
Publications from the Science Team
VIEW RELATED INFORMATION
GENERAL DOCUMENTATION
https://disc.gsfc.nasa.gov/information/documents?title=OCO%20Known%20Data%20Issues
OCO-2 Data Gaps
VIEW RELATED INFORMATION
GENERAL DOCUMENTATION
https://disc.gsfc.nasa.gov/information/documents?title=OCO-2%20Documents
OCO-2 Documentation
CEOS IDN DIF
VERSION 10.2
2020-07-22
2020-08-10
2021-12-30
2020-08-01T00:00:00.000Z
2020-08-10T00:00:00.000Z
2
gov.nasa.gsfc.gcmd.standardproduct
StandardProduct
false