DOI: 10.1002/2016GL071438
论文题名: Using stable isotopes of hydrogen to quantify biogenic and thermogenic atmospheric methane sources: A case study from the Colorado Front Range
作者: Townsend-Small A. ; Botner E.C. ; Jimenez K.L. ; Schroeder J.R. ; Blake N.J. ; Meinardi S. ; Blake D.R. ; Sive B.C. ; Bon D. ; Crawford J.H. ; Pfister G. ; Flocke F.M.
刊名: Geophysical Research Letters
ISSN: 0094-8451
EISSN: 1944-8182
出版年: 2016
卷: 43, 期: 21 起始页码: 11462
结束页码: 11471
语种: 英语
英文关键词: cattle
; landfill
; methane
; natural gas
; stable isotopes
Scopus关键词: Atmospheric chemistry
; Greenhouse gases
; Isotopes
; Land fill
; Methane
; Natural gas
; Anthropogenic sources
; Atmospheric concentration
; Atmospheric methanes
; cattle
; Colorado Front Range
; Oil and natural gas
; Source apportionment
; Stable isotopes
; Natural gas wells
; Bos
英文摘要: Global atmospheric concentrations of methane (CH4), a powerful greenhouse gas, are increasing, but because there are many natural and anthropogenic sources of CH4, it is difficult to assess which sources may be increasing in magnitude. Here we present a data set of δ2H-CH4 measurements of individual sources and air in the Colorado Front Range, USA. We show that δ2H-CH4, but not δ13C, signatures are consistent in air sampled downwind of landfills, cattle feedlots, and oil and gas wells in the region. Applying these source signatures to air in ground and aircraft samples indicates that at least 50% of CH4 emitted in the region is biogenic, perhaps because regulatory restrictions on leaking oil and natural gas wells are helping to reduce this source of CH4. Source apportionment tracers such as δ2H may help close the gap between CH4 observations and inventories, which may underestimate biogenic as well as thermogenic sources. ©2016. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84998865671&doi=10.1002%2f2016GL071438&partnerID=40&md5=f8a3beedddf9c6dd0976f1a5963fc512
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9414
Appears in Collections: 科学计划与规划 气候变化与战略
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作者单位: Department of Geology, University of Cincinnati, Cincinnati, OH, United States
Recommended Citation:
Townsend-Small A.,Botner E.C.,Jimenez K.L.,et al. Using stable isotopes of hydrogen to quantify biogenic and thermogenic atmospheric methane sources: A case study from the Colorado Front Range[J]. Geophysical Research Letters,2016-01-01,43(21).