Methane emissions from the 2015 Aliso Canyon blowout in Los Angeles, CA

Author:

Conley S.12,Franco G.3,Faloona I.2,Blake D. R.4,Peischl J.56,Ryerson T. B.6

Affiliation:

1. Scientific Aviation, 3335 Airport Road, Boulder, CO 80301, USA.

2. Department of Land, Air, and Water Resources, University of California–Davis, Davis, CA 95616, USA.

3. Research and Development Division, California Energy Commission, Sacramento, CA 95814, USA.

4. Department of Chemistry, University of California–Irvine, Irvine, CA 92617, USA.

5. Cooperative Institute for Research in Environmental Sciences, University of Colorado–Boulder, Boulder, CO, 80309, USA.

6. Earth System Research Laboratory, National Oceanic and Atmospheric Administration (NOAA), Boulder, CO, 80305, USA.

Abstract

The magnitude of a major methane leak The Aliso Canyon underground gas storage facility outside Los Angeles, CA, houses enormous natural gas reserves. One well at the site experienced a blowout in late October 2015 and began leaking gas until it was sealed in February 2016. Over the course of 13 flights in the region, Conley et al. sampled the air column and determined daily release rates of methane (a powerful greenhouse gas) and ethane throughout the leak. The methane release rates were nearly double that of the entire Los Angeles region combined. Thus, single vulnerabilities can have major implications for state and federal climate policy. Science , this issue p. 1317

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

Reference43 articles.

1. S. Cornot-Gandolphe Underground Gas Storage in the World 2013: Executive Summary (Centre International d’Information sur le Gaz Naturel et tous Hydrocarbures Gazeux Rueil-Malmaison France 2013).

2. Natural Gas Annual Respondent Query System (U.S. Energy Information Administration 2015); www.eia.gov/cfapps/ngqs/ngqs.cfm?f_report=RP7.

3. State of California Department of Conservation Division of Oil and Gas Report on Proposed Change of Well Designation (1991); ftp://ftp.consrv.ca.gov/pub/oil/Standard_Sesnon_25_API_037-00776_Well_File/03700776_DATA_03-19-2008.pdf.

4. SoCalGas press release (18 February 2016); www.alisoupdates.com/1443738511730/press-release-doggr-confirms-en.pdf.

5. P. R. Bevington D. K. Robinson Data Reduction and Error Analysis in the Physical Sciences (McGraw-Hill ed. 3 2003).

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