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.

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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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