Articles | Volume 21, issue 3
Atmos. Chem. Phys., 21, 1717–1736, 2021
https://doi.org/10.5194/acp-21-1717-2021
Atmos. Chem. Phys., 21, 1717–1736, 2021
https://doi.org/10.5194/acp-21-1717-2021

Research article 09 Feb 2021

Research article | 09 Feb 2021

Atmospheric-methane source and sink sensitivity analysis using Gaussian process emulation

Angharad C. Stell et al.

Model code and software

Global methane freshwater emission map for atmospheric modelling Angharad C. Stell https://doi.org/10.17605/OSF.IO/Q9F8P

Atmospheric methane source and sink sensitivity analysis using Gaussian process emulation Angharad C. Stell https://doi.org/10.17605/OSF.IO/Z435M

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Short summary
Although it is the second-most important greenhouse gas, our understanding of the atmospheric-methane budget is limited. The uncertainty highlights the need for new tools to investigate sources and sinks. Here, we use a Gaussian process emulator to efficiently approximate the response of atmospheric-methane observations to changes in the most uncertain emission or loss processes. With this new method, we rigorously quantify the sensitivity of atmospheric observations to budget uncertainties.
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