Atmospheric Chemistry and Physics
Atmospheric Chemistry and Physics
ACP
Articles | Volume 21, issue 23
Articles | Volume 21, issue 23
https://doi.org/10.5194/acp-21-17607-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-21-17607-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 21, issue 23
Research article
 | 
03 Dec 2021
Research article |  | 03 Dec 2021

Long-term atmospheric emissions for the Coal Oil Point natural marine hydrocarbon seep field, offshore California

Ira Leifer, Christopher Melton, and Donald R. Blake

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Short summary
We demonstrate a novel application using air quality station data to derive 3-decade-averaged emissions from the Coal Oil Point (COP) seep field, a highly spatially and temporally variable geological migration system. Emissions were 19 Gg per year, suggesting that the COP seep field contributes 0.27 % of the global marine seep budget based on a recent estimate. This provides an advance over snapshot survey values by accounting for seasonal and interannual variations.
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