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Atmospheric Chemistry and Physics An interactive open-access journal of the European Geosciences Union
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We present a way to rate the CO2 flux estimates made from inversion of a global atmospheric transport model. Our approach relies on accurate aircraft measurements in the free troposphere. It shows that some satellite soundings can now provide inversion results that are, despite their uncertainty, comparable in credibility to traditional inversions using the accurate but sparse surface network and that these inversions are, therefore, complementary for studies of the global carbon budget.
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ACP | Articles | Volume 19, issue 22
Atmos. Chem. Phys., 19, 14233–14251, 2019
https://doi.org/10.5194/acp-19-14233-2019
Atmos. Chem. Phys., 19, 14233–14251, 2019
https://doi.org/10.5194/acp-19-14233-2019

Research article 26 Nov 2019

Research article | 26 Nov 2019

Objective evaluation of surface- and satellite-driven carbon dioxide atmospheric inversions

Frédéric Chevallier et al.

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Cited articles

Basu, S., Krol, M., Butz, A., Clerbaux, C., Sawa, Y., Machida, T., Matsueda, H., Frankenberg, C., Hasekamp, O. P., and Aben, I.: The seasonal variation of the CO2 flux over Tropical Asia estimated from GOSAT, CONTRAIL, and IASI, Geophys. Res. Lett., 41, 1809–1815, https://doi.org/10.1002/2013GL059105, 2014. 
Bocquet, M., Wu, L., and Chevallier, F.: Bayesian design of control space for optimal assimilation of observations. I: Consistent multiscale formalism, Q. J. Roy. Meteor. Soc., 137, 1340–1356, https://doi.org/10.1002/qj.837, 2011. 
Bolin, B. and Keeling, C. D.: Large-scale atmospheric mixing as deduced from the seasonal and meridional variations of carbon dioxide, J. Geophys. Res., 68, 3899–3920, https://doi.org/10.1029/JZ068i013p03899, 1963. 
Bösch, H. and Anand, J.: Product User Guide and Specification (PUGS) – ANNEX A for products CO2_GOS_OCFP, CH4_GOS_OCFP & CH4_GOS_OCPR. C3S report ref. C3S_D312a_Lot6.3.1.5-v1_PUGS_ANNEX-A_v1.3, available at: http://datastore.copernicus-climate.eu/c3s/published-forms/c3sprod/satellite-carbon-dioxide/product-user-guide-annex-a-v1.3.pdf (last access: 21 November 2019), 2017. 
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Short summary
We present a way to rate the CO2 flux estimates made from inversion of a global atmospheric transport model. Our approach relies on accurate aircraft measurements in the free troposphere. It shows that some satellite soundings can now provide inversion results that are, despite their uncertainty, comparable in credibility to traditional inversions using the accurate but sparse surface network and that these inversions are, therefore, complementary for studies of the global carbon budget.
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Final-revised paper
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