DOI: 10.1002/2014GL060754
论文题名: Constraining the carbon tetrachloride (CCl4) budget using its global trend and inter-hemispheric gradient
作者: Liang Q. ; Newman P.A. ; Daniel J.S. ; Reimann S. ; Hall B.D. ; Dutton G. ; Kuijpers L.J.M.
刊名: Geophysical Research Letters
ISSN: 0094-9944
EISSN: 1944-9675
出版年: 2014
卷: 41, 期: 14 起始页码: 5307
结束页码: 5315
语种: 英语
英文关键词: carbon tetrachloride
; CCl4
; emissions
; inter-hemispheric gradient
; lifetime
Scopus关键词: Budget control
; Computer simulation
; Greenhouse gases
; Particulate emissions
; Atmospheric concentration
; CCl4
; Current emissions
; Global emissions
; Global trends
; lifetime
; Montreal Protocols
; Stratosphere-troposphere exchange
; Carbon tetrachloride
; atmospheric deposition
; carbon budget
; carbon emission
; concentration (composition)
; estimation method
; global perspective
; Montreal Protocol
; simulation
英文摘要: Carbon tetrachloride (CCl4) is a major anthropogenic ozone-depleting substance and greenhouse gas and has been regulated under the Montreal Protocol. However, the near-zero 2007-2012 emissions estimate based on the UNEP reported production and feedstock usage cannot be reconciled with the observed slow decline of atmospheric concentrations and the inter-hemispheric gradient (IHG) for CCl4. Our 3-D model simulations suggest that the observed IHG (1.5 ± 0.2 ppt for 2000-2012) is primarily caused by ongoing current emissions, while ocean and soil losses and stratosphere-troposphere exchange together contribute a small negative gradient (~0 - -0.3 ppt). Using the observed CCl4 global trend and IHG, we deduce that the mean global emissions for the 2000-2012 period are 393445 Gg/yr (~30% of the peak 1980s emissions) and a corresponding total lifetime of 353732 years. © 2014. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84904850226&doi=10.1002%2f2014GL060754&partnerID=40&md5=1cee6f89f096dd90781f0d8c2f3a4f74
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/7208
Appears in Collections: 气候减缓与适应
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作者单位: Atmospheric Chemistry and Dynamics Laboratory, NASA Goddard Space Flight Center, Greenbelt, MD, United States
Recommended Citation:
Liang Q.,Newman P.A.,Daniel J.S.,et al. Constraining the carbon tetrachloride (CCl4) budget using its global trend and inter-hemispheric gradient[J]. Geophysical Research Letters,2014-01-01,41(14).