Atmospheric Measurement Techniques
Atmospheric Measurement Techniques
AMT
Articles | Volume 18, issue 18
Articles | Volume 18, issue 18
https://doi.org/10.5194/amt-18-4631-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/amt-18-4631-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 18, issue 18
Research article
 | 
23 Sep 2025
Research article |  | 23 Sep 2025

Best practices and uncertainties in CH4 emission quantification: employing mobile measurements and Gaussian plume modelling at a biogas plant

Julia Beate Wietzel, Piotr Korben, Antje Hoheisel, and Martina Schmidt

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Short summary
Long-term measurements of CH4 emission rates at a biogas plant in Germany were performed for eight years using mobile measurements combined with a Gaussian plume model. The average CH4 emission rate of the biogas plant was 5.9 ± 0.5 kg CH4 h-1. To increase the accuracy of the emission rate calculations and harmonize the dataset, the methodology was evaluated through six controlled methane release experiments demonstrating an uncertainty lower than 30 %, following several recommendations.
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