Forward Modeling and Optimization of Methane Emissions in the South Central United States Using Aircraft Transects Across Frontal Boundaries

doi:10.1029/2019GL084495

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DOI	10.1029/2019GL084495
	Forward Modeling and Optimization of Methane Emissions in the South Central United States Using Aircraft Transects Across Frontal Boundaries
	Barkley, Z. R.1; Davis, K. J.1; Feng, S.1; Balashov, N.2,3; Fried, A.4; DiGangi, J.5; Choi, Y.5; Hailiday, H. S.5
	2019-11-28
发表期刊	GEOPHYSICAL RESEARCH LETTERS
ISSN	0094-8276
EISSN	1944-8007
出版年	2019
卷号	46 期号:22 页码:13564-13573
文章类型	Article
语种	英语
国家	USA
英文摘要	The South Central United States is a hot spot for anthropogenic methane (CH4) emissions, with contributions from the oil/gas (O&G) and animal agriculture sectors. During frontal weather events, airflow combines enhancements from these emissions into a large plume. In this study, we take CH4 and ethane (C2H6) observations from the Atmospheric Carbon and Transport-America campaign and adjust O&G and animal agriculture emissions such that modeled CH4 and C2H6 enhancements match the observed plume. Results from the joint CH4-C2H6 optimization indicate that emissions from the O&G sector are 1.8 +/- 0.7 (2 sigma) times larger than EPA inventory estimates. These results match synthesis work from recent literature and reject the possibility that this increase compared to inventories is due to a potential bias in daytime-only measurements of these facilities. Successful modeling from this study raises the possibility of using trace gas measurements along frontal crossings to solve for emissions in other regions of the United States.
领域	气候变化
收录类别	SCI-E
WOS记录号	WOS:000505879600099
WOS关键词	NATURAL-GAS PRODUCTION ; MOLE FRACTIONS ; INVENTORIES ; TRANSPORT ; REGION ; OIL ; CO2
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.173/C666/handle/2XK7JSWQ/225127
专题	环境与发展全球科技态势
作者单位	1.Penn State Univ, Dept Meteorol & Atmospher Sci, University Pk, PA 16802 USA; 2.NASA, Global Modeling & Assimilat Off, Goddard Space Flight Ctr, Greenbelt, MD USA; 3.Univ Space Res Assoc, Columbia, MD USA; 4.Univ Colorado, Inst Arctic & Alpine Res, Boulder, CO 80309 USA; 5.NASA, Langley Res Ctr, Hampton, VA 23665 USA
推荐引用方式 GB/T 7714	Barkley, Z. R.,Davis, K. J.,Feng, S.,et al. Forward Modeling and Optimization of Methane Emissions in the South Central United States Using Aircraft Transects Across Frontal Boundaries[J]. GEOPHYSICAL RESEARCH LETTERS,2019,46(22):13564-13573.
APA	Barkley, Z. R..,Davis, K. J..,Feng, S..,Balashov, N..,Fried, A..,...&Hailiday, H. S..(2019).Forward Modeling and Optimization of Methane Emissions in the South Central United States Using Aircraft Transects Across Frontal Boundaries.GEOPHYSICAL RESEARCH LETTERS,46(22),13564-13573.
MLA	Barkley, Z. R.,et al."Forward Modeling and Optimization of Methane Emissions in the South Central United States Using Aircraft Transects Across Frontal Boundaries".GEOPHYSICAL RESEARCH LETTERS 46.22(2019):13564-13573.