Articles | Volume 17, issue 7
Atmos. Chem. Phys., 17, 4781–4797, 2017
https://doi.org/10.5194/acp-17-4781-2017
Atmos. Chem. Phys., 17, 4781–4797, 2017
https://doi.org/10.5194/acp-17-4781-2017

Research article 12 Apr 2017

Research article | 12 Apr 2017

Consistent regional fluxes of CH4 and CO2 inferred from GOSAT proxy XCH4 : XCO2 retrievals, 2010–2014

Liang Feng et al.

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Latest update: 22 Sep 2021
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Short summary
We use the GEOS-Chem global 3-D model of atmospheric chemistry and transport and an ensemble Kalman filter to simultaneously infer regional fluxes of methane (CH4) and carbon dioxide (CO2) directly from GOSAT retrievals of XCH4:XCO2, using sparse ground-based CH4 and CO2 mole fraction data to anchor the ratio. Our results show that assimilation of GOSAT data significantly reduced the posterior uncertainty and changed the a priori spatial distribution of CH4 emissions.
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