Articles | Volume 12, issue 4
https://doi.org/10.5194/amt-12-2085-2019
https://doi.org/10.5194/amt-12-2085-2019
Research article
 | 
04 Apr 2019
Research article |  | 04 Apr 2019

Using the tracer flux ratio method with flight measurements to estimate dairy farm CH4 emissions in central California

Conner Daube, Stephen Conley, Ian C. Faloona, Claudia Arndt, Tara I. Yacovitch, Joseph R. Roscioli, and Scott C. Herndon

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Latest update: 14 Dec 2024
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Short summary
This study describes aircraft measurements of methane from dairy farms in central California. A small deliberate release of a tracer gas is done on the ground and measured from the air and the ratio of methane to tracer used to quantify emissions. Farm-scale methane emissions are determined as well as the fraction of those emissions coming from animal activity versus liquid manure management. These findings were within the uncertainty of two established methods.