Articles | Volume 18, issue 2
https://doi.org/10.5194/amt-18-455-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/amt-18-455-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
27 Jan 2025
Research article |
| 27 Jan 2025
| 27 Jan 2025
Separating and quantifying facility-level methane emissions with overlapping plumes for spaceborne methane monitoring
Yiguo Pang
Innovation Academy for Microsatellites of Chinese Academy of Sciences, Shanghai, China
University of Chinese Academy of Sciences, Beijing, China
Longfei Tian
Innovation Academy for Microsatellites of Chinese Academy of Sciences, Shanghai, China
Denghui Hu
Innovation Academy for Microsatellites of Chinese Academy of Sciences, Shanghai, China
Shuang Gao
Innovation Academy for Microsatellites of Chinese Academy of Sciences, Shanghai, China
Guohua Liu
CORRESPONDING AUTHOR
Innovation Academy for Microsatellites of Chinese Academy of Sciences, Shanghai, China
University of Chinese Academy of Sciences, Beijing, China
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Short summary
The spatial adjacency of methane point sources can result in plume overlapping, presenting challenges for quantification from space. A separation and quantification method combining the Gaussian plume model and the integrated mass enhancement method is proposed. A modern parameter estimation technique is introduced to separate the overlapping plumes from satellite observations. The proposed method is evaluated with synthesized observations and real satellite observations.
The spatial adjacency of methane point sources can result in plume overlapping, presenting...
