Articles | Volume 24, issue 5
https://doi.org/10.5194/acp-24-3009-2024
https://doi.org/10.5194/acp-24-3009-2024
Research article
 | 
08 Mar 2024
Research article |  | 08 Mar 2024

Individual coal mine methane emissions constrained by eddy covariance measurements: low bias and missing sources

Kai Qin, Wei Hu, Qin He, Fan Lu, and Jason Blake Cohen

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This preprint is open for discussion and under review for Atmospheric Chemistry and Physics (ACP).
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Short summary
We compute CH4 emissions and uncertainty on a mine-by-mine basis, including underground, overground, and abandoned mines. Mine-by-mine gas and flux data and 30 min observations from a flux tower located next to a mine shaft are integrated. The observed variability and bias correction are propagated over the emissions dataset, demonstrating that daily observations may not cover the range of variability. Comparisons show both an emissions magnitude and spatial mismatch with current inventories.
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