Articles | Volume 17, issue 12
https://doi.org/10.5194/acp-17-7509-2017
https://doi.org/10.5194/acp-17-7509-2017
Research article
 | 
21 Jun 2017
Research article |  | 21 Jun 2017

Methane emissions from dairies in the Los Angeles Basin

Camille Viatte, Thomas Lauvaux, Jacob K. Hedelius, Harrison Parker, Jia Chen, Taylor Jones, Jonathan E. Franklin, Aijun J. Deng, Brian Gaudet, Kristal Verhulst, Riley Duren, Debra Wunch, Coleen Roehl, Manvendra K. Dubey, Steve Wofsy, and Paul O. Wennberg

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Cited articles

Arata, C., Rahn, T., and Dubey, M. K.: Methane Isotope Instrument Validation and Source Identification at Four Corners, New Mexico, United States, J. Phys. Chem. A, 120, 1488–1494, https://doi.org/10.1021/acs.jpca.5b12737, 2016.
ARB – Air Resources Board: concept paper, full report, available at: http://www.arb.ca.gov/cc/shortlived/concept_paper.pdf, last access: 7 May 2015.
Berchet, A., Pison, I., Chevallier, F., Paris, J.-D., Bousquet, P., Bonne, J.-L., Arshinov, M. Y., Belan, B. D., Cressot, C., Davydov, D. K., Dlugokencky, E. J., Fofonov, A. V., Galanin, A., Lavrič, J., Machida, T., Parker, R., Sasakawa, M., Spahni, R., Stocker, B. D., and Winderlich, J.: Natural and anthropogenic methane fluxes in Eurasia: a mesoscale quantification by generalized atmospheric inversion, Biogeosciences, 12, 5393–5414, https://doi.org/10.5194/bg-12-5393-2015, 2015.
Breon, F. M. and Ciais, P.: Spaceborne remote sensing of greenhouse gas concentrations, Comptes Rendus Geoscience, 342, 412–424, https://doi.org/10.1016/j.crte.2009.09.012, 2010.
California Agricultural Statistics, United States Department of Agriculture, National Agricultural Statistics Service, Pacific Regional, Field Office California, full report, available at: http://www.nass.usda.gov/Statistics by_State/California/Publications/California_Ag_Statistics/ CALivestockandDairy.pdf (last access: 16 June 2017), 2013.
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This study estimates methane emissions at local scale in dairy farms using four new mobile ground-based remote sensing spectrometers (EM27/SUN) and isotopic in situ measurements. Our top-down estimates are in the low end of previous studies. Inverse modeling from a comprehensive high-resolution model simulations (WRF-LES) is used to assess the geographical distribution of the emissions. Both the model and the measurements indicate a mixture of anthropogenic and biogenic emissions.
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