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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Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
AR by Conner Daube on behalf of the Authors (04 Feb 2019)  Author's response   Manuscript 
ED: Referee Nomination & Report Request started (10 Feb 2019) by Huilin Chen
RR by Anonymous Referee #1 (25 Feb 2019)
RR by Anonymous Referee #2 (26 Feb 2019)
ED: Publish subject to minor revisions (review by editor) (10 Mar 2019) by Huilin Chen
AR by Conner Daube on behalf of the Authors (12 Mar 2019)
ED: Publish as is (22 Mar 2019) by Huilin Chen
AR by Conner Daube on behalf of the Authors (26 Mar 2019)  Manuscript 
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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.