Articles | Volume 21, issue 3
https://doi.org/10.5194/acp-21-1717-2021
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, Luke M. Western, Tomás Sherwen, and Matthew Rigby

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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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