Articles | Volume 21, issue 6
Atmos. Chem. Phys., 21, 4339–4356, 2021
https://doi.org/10.5194/acp-21-4339-2021
Atmos. Chem. Phys., 21, 4339–4356, 2021
https://doi.org/10.5194/acp-21-4339-2021

Research article 22 Mar 2021

Research article | 22 Mar 2021

2010–2015 North American methane emissions, sectoral contributions, and trends: a high-resolution inversion of GOSAT observations of atmospheric methane

Joannes D. Maasakkers et al.

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AR by Joannes Maasakkers on behalf of the Authors (26 Dec 2020)  Author's response    Manuscript
ED: Publish as is (07 Jan 2021) by Andreas Hofzumahaus
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Short summary
We use 2010–2015 GOSAT satellite observations of atmospheric methane over North America in a high-resolution inversion to estimate methane emissions. We find general consistency with the gridded EPA inventory but higher oil and gas production emissions, with oil production emissions twice as large as in the latest EPA Greenhouse Gas Inventory. We find lower wetland emissions than predicted by WetCHARTs and a small increasing trend in the eastern US, apparently related to unconventional oil/gas.
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