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Description

Version 11r is the current version of the data set. Older versions will no longer be available and are superseded by Version 11r.

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.

Product Summary

Platforms
OCO-2
Instruments
OCO-2
Spatial Extent

N: 90 S: -90 E: 180 W: -180

Location
GLOBAL
Coordinate System
GEODETIC
Granule Spatial Representation
GEODETIC
Temporal Extent
2014-09-01 to 2024-04-01
Data Partner
Goddard Earth Sciences Data and Information Services Center (formerly Goddard DAAC), Terrestrial Information Systems Laboratory, Earth Sciences Division, Science and Exploration Directorate, Goddard Space Flight Center, NASA (NASA/GSFC/SED/ESD/TISL/GESDI
Concept ID
C2248652620-GES_DISC
Data State
COMPLETE
Number of Files/Granules
55247
Processing Level
2
Published
Updated
Science Keywords
Atmospheric Carbon Dioxide

Citation

Citation is critically important for dataset documentation and discovery. This dataset is openly shared, without restriction, in accordance with the EOSDIS Data Use and Citation Guidance.

Copy Citation

Science Computing Facility, J. P. L. (2017). OCO-2 Level 2 geolocated XCO2 retrievals results, physical model, Retrospective Processing V11r [Data set]. NASA Goddard Earth Sciences Data and Information Services Center. https://doi.org/10.5067/8Z3QQKHC4R4C Date Accessed: 2026-05-15

Documents

USER'S GUIDE

READ-ME

PI DOCUMENTATION

ALGORITHM THEORETICAL BASIS DOCUMENT (ATBD)

GENERAL DOCUMENTATION

Publications Citing This Dataset

Filters
Title Year Author Topic
An assessment of a CO2 transport model simulations using Das, Chiranjit, Kunchala, Ravi Kumar, Patra, Prabir K., Chandra, Naveen, Ishijima, Kentaro, Machida, Toshinobu Biomass Burning, Halocarbons And Halogens, Trace Gases/Trace Species, Sulfur Compounds, Air Quality, Atmospheric Carbon Monoxide, Atmospheric Ozone, Non-methane Hydrocarbons/Volatile Organic Compounds, Fossil Fuel Burning, Industrial Emissions, Atmospheric Carbon Dioxide, Carbonaceous Aerosols
Does the Satellite Sensing Column-Averaged Dry-Air Mole Fraction CO2(XCO2) Require Oxygen Concentration from O2-A Band for Normalizing? Zhang, Lu, Cao, Xifeng, Yan, Huanhuan, Chen, Lin, Zhang, Peng, Zhang, Xingying, Gao, Peng, Liu, Gongju Atmospheric Carbon Dioxide
Deep Neural Emulator of Radiative Transfer Model for Near-Infrared Hyperspectral Simulation: Implications for Fast Satellite Retrieval of XCO
2 		Hu, Ruohua, Li, Tongwen, Wu, Jingan, Wang, Yuan, Zhang, Lingfeng Atmospheric Carbon Dioxide, Infrared Radiance
Intra-Urban CO2 Spatiotemporal Patterns and Driving Factors Using Multi-Source Data and AI Methods: A Case Study of Shanghai, China Pan, Leyi, Fu, Qingyan, Yang, Fan, Shao, Yuchen, Liu, Chao Atmospheric Carbon Dioxide
First TanSat CO2 retrieval over land and ocean using both nadir and Hong, Xinhua, Zhang, Chengxin, Tian, Yuan, Zhu, Yizhi, Hao, Yin, Liu, Cheng Atmospheric Carbon Dioxide
Measurement of CO<sub>2</sub> Column Concentration Above Cloud Tops With Mao, Zhihua, Zhang, Yang, Bu, Lingbing, Wang, Qin, Xiao, Wei, Lee, Xuhui, Liang, Dingyuan, Burhan, Khalid Muhammad, Liu, Jiqiao, Chen, Weibiao, Liu, Sihan, Wang, Zhongting Atmospheric Carbon Dioxide, Carbon Dioxide
Spatial and Temporal Analysis of Carbon Dioxide Concentrations over Italy by means of OCO2 Satellite Data Series Romaniello, Vito, Spinetti, Claudia, Piscini, Alessandro Atmospheric Carbon Dioxide
Evaluating the performance of carbon dioxide and methane observations from carbon-monitoring satellite products over China Hong, Xinhua, Gao, Yuanyun, Wang, Jiajia, Zhang, Chengxin, Chen, Hao, Ni, Yanyan, Wang, Wei, Sun, Youwen, Zhu, Yizhi, Tang, Zhiyuan, Wang, Yali, Ma, Na, Liu, Cheng Atmospheric Carbon Dioxide
Retrieved XCO2 Accuracy Improvement by Reducing Aerosol-Induced Bias for Ke, Ju, Wang, Shuaibo, Chen, Sijie, Dong, Changzhe, Sun, Yingshan, Liu, Dong Atmospheric Carbon Dioxide, Albedo, Anisotropy
Retrieved wind speed from the Orbiting Carbon Observatory-2 Nelson, Robert R., Eldering, Annmarie, Crisp, David, Merrelli, Aronne J., O'Dell, Christopher W. Atmospheric Carbon Dioxide
Optimization of the OCO-2 Cloud Screening Algorithm and Evaluation against MODIS and TCCON Measurements over Land Surfaces in Europe and Japan Chen, Sijie, Wang, Shuaibo, Su, Lin, Dong, Changzhe, Ke, Ju, Zheng, Zhuofan, Cheng, Chonghui, Tong, Bowen, Liu, Dong Atmospheric Carbon Dioxide
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