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Comparisons of the Orbiting Carbon Observatory-2 (OCO-2) X CO 2 measurements with TCCON
Open accessAbstract
Abstract. NASA's Orbiting Carbon Observatory-2 (OCO-2) has been measuring carbon dioxide column-averaged dry-air mole fraction, XCO2, in the Earth's atmosphere for over 2 years. In this paper, we describe the comparisons between the first major release of the OCO-2 retrieval algorithm (B7r) and XCO2 from OCO-2's primary ground-based validation network: the Total Carbon Column Observing Network (TCCON). The OCO-2 XCO2 retrievals, after filtering and bias correction, agree well when aggregated around and coincident with TCCON data in nadir, glint, and target observation modes, with absolute median differences less than 0.4 ppm and RMS differences less than 1.5 ppm. After bias correction, residual biases remain. These biases appear to depend on latitude, surface properties, and scattering by aerosols. It is thus crucial to continue measurement comparisons with TCCON to monitor and evaluate the OCO-2 XCO2 data quality throughout its mission.
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Cited by
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Nassar, R., Hill, T. G., McLinden, C. A., Wunch, D., Jones, D. B. A., & Crisp, D. (2017) · Geophysical Research Letters · doi:10.1002/2017gl074702 · Cited by 336
Self-citationFrey, M., Sha, M. K., Hase, F., Kiel, M., Blumenstock, T., Harig, R., Surawicz, G., Deutscher, N. M., Shiomi, K., Franklin, J. E., et al. (2019) · Atmospheric Measurement Techniques · doi:10.5194/amt-12-1513-2019 · Cited by 238
Self-citationSha, M. K., Langerock, B., Blavier, J.-F. L., Blumenstock, T., Borsdorff, T., Buschmann, M., Dehn, A., De Mazière, M., Deutscher, N. M., Feist, D. G., et al. (2021) · Atmospheric Measurement Techniques · doi:10.5194/amt-14-6249-2021 · Cited by 200
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Metadata
- Authors
- Wunch, D., Wennberg, P. O., Osterman, G., Fisher, B., Naylor, B., Roehl, C. M., O'Dell, C., Mandrake, L., Viatte, C., Kiel, M., Griffith, D. W. T., Deutscher, N. M., Velazco, V. A., Notholt, J., Warneke, T., Petri, C., De Maziere, M., Sha, M. K., Sussmann, R., Rettinger, M., Pollard, D., Robinson, J., Morino, I., Uchino, O., Hase, F., Blumenstock, T., Feist, D. G., Arnold, S. G., Strong, K., Mendonca, J., Kivi, R., Heikkinen, P., Iraci, L., Podolske, J., Hillyard, P. W., Kawakami, S., Dubey, M. K., Parker, H. A., Sepulveda, E., García, O. E., Te, Y., Jeseck, P., Gunson, M. R., Crisp, D., & Eldering, A.
- Venue
- Atmospheric Measurement Techniques
- Publisher
- Copernicus GmbH
- Published
- 2017-06-13
- Volume
- 10
- Issue
- 6
- Pages
- 2209-2238
- ISSN
- 1867-1381 (ISSN-L)
- 1867-8548
- OpenAlex
- W2508427873
- Cited by
- 477
- References
- 0
- FWCI
- 22.97
- Type
- journal article
- Language
- en
- Open access
- gold
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- CoChat. (2026). Citation check: Comparisons of the Orbiting Carbon Observatory-2 (OCO-2) X CO 2 measurements with TCCON. https://app.cochat.ai/papers/10.5194/amt-10-2209-2017
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- Wunch, D., Wennberg, P. O., Osterman, G., Fisher, B., Naylor, B., Roehl, C. M., O'Dell, C., Mandrake, L., Viatte, C., Kiel, M., Griffith, D. W. T., Deutscher, N. M., Velazco, V. A., Notholt, J., Warneke, T., Petri, C., De Maziere, M., Sha, M. K., Sussmann, R., . . . Eldering, A. (2017). Comparisons of the Orbiting Carbon Observatory-2 (OCO-2) X CO 2 measurements with TCCON. Atmospheric Measurement Techniques. https://doi.org/10.5194/amt-10-2209-2017
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