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Monthly trends of methane emissions in Los Angeles from 2011 to 2015 inferred by CLARS-FTS observations

Abstract This paper presents an analysis of methane emissions from the Los Angeles Basin at monthly timescales across a 4-year time period – from September 2011 to August 2015. Using observations acquired by a ground-based near-infrared remote sensing instrument on Mount Wilson, California, combined with atmospheric CH[subscript 4]–CO[subscript 2] tracer–tracer correlations, we observed −18 to +22 % monthly variability in CH[subscript 4] : CO[subscript 2] from the annual mean in the Los Angeles Basin. Top-down estimates of methane emissions for the basin also exhibit significant monthly variability (−19 to +31 % from annual mean and a maximum month-to-month change of 47 %). During this period, methane emissions consistently peaked in the late summer... (more)
Created Date 2016-10-26
Contributor Wong, Clare K. (Author) / Pongetti, Thomas J. (Author) / Oda, Tom (Author) / Rao, Preeti (Author) / Gurney, Kevin (ASU author) / Newman, Sally (Author) / Duren, Riley M. (Author) / Miller, Charles E. (Author) / Yung, Yuk L. (Author) / Sander, Stanley P. (Author) / College of Liberal Arts and Sciences / School of Life Sciences
Type Text
Extent 10 pages
Language English
Identifier DOI: 10.5194/acp-16-13121-2016 / ISSN: 1680-7316 / ISSN: 1680-7324
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Citation Wong, C. K., Pongetti, T. J., Oda, T., Rao, P., Gurney, K. R., Newman, S., . . . Sander, S. P. (2016). Monthly trends of methane emissions in Los Angeles from 2011 to 2015inferred by CLARS-FTS observations. Atmospheric Chemistry and Physics, 16(20), 13121-13130. doi:10.5194/acp-16-13121-2016
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