DOI: 10.1002/jgrd.50544
论文题名: HCFC-22 emissions at global and regional scales between 1995 and 2010: Trends and variability
作者: Fortems-Cheiney A. ; Chevallier F. ; Saunois M. ; Pison I. ; Bousquet P. ; Cressot C. ; Wang H.J. ; Yokouchi Y. ; Artuso F.
刊名: Journal of Geophysical Research Atmospheres
ISSN: 21698996
出版年: 2013
卷: 118, 期: 13 起始页码: 7379
结束页码: 7388
语种: 英语
英文关键词: HCFC-22
; inversion
Scopus关键词: Atmospheric concentration
; Chlorodifluoromethane
; Developed countries
; Developing regions
; HCFC-22
; High temporal resolution
; inversion
; Montreal Protocols
; Chlorofluorocarbons
; Bayesian analysis
; concentration (composition)
; emission inventory
; Montreal Protocol
; optimization
; ozone depletion
; seasonality
; Far East
英文摘要: HCFC-22 (CHClF2 , chlorodifluoromethane) is an ozone-depleting substance, the consumption of which is controlled under the Montreal Protocol. Within a Bayesian inversion framework, we use measurements of HCFC-22 atmospheric concentrations to constrain estimates of HCFC-22 emissions, at the grid point 3.75°×2.5°and 8 day resolution, from January 1995 to December 2010. Starting from a new gridded bottom-up inventory which is then optimized, our method shows continuously rising global emissions, from 182±11 Gg in 1995 to the maximum of 410±9 Gg in 2009. This is mainly due to an increase of emissions in developing regions, particularly in Eastern Asia, and occurs despite the current phase-out in developed countries. The high temporal resolution of our inversion (8 day) allows to reveal some of the emission seasonality, the global posterior sources ranging from 25 Gg/month in November to 42 Gg/month in July, for example, in 2010. Key Points inversion of HCFC-22 emissions for the long period 1995 to 2010 reduction of the uncertainties associated with HCFC-22 emissions revelation of HCFC-22 emissions seasonality ©2013. American Geophysical Union. All Rights Reserved. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/63589
Appears in Collections: 影响、适应和脆弱性 气候减缓与适应
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作者单位: Laboratoire des Sciences du Climat et de l'Environnement, Institut Pierre-Simon Laplace, CEA/CNRS/UVSQ, FR-91191 Gif-sur-Yvette, France; School of Earth and Atmospheric Sciences, Georgia Institute of Technology, Atlanta, GA, United States; National Institute for Environmental Studies, Tsukuba, Japan; ENEA-Italian National Agency for New Technologies, Energy and Sustainable Economic Development, Rome, Italy
Recommended Citation:
Fortems-Cheiney A.,Chevallier F.,Saunois M.,et al. HCFC-22 emissions at global and regional scales between 1995 and 2010: Trends and variability[J]. Journal of Geophysical Research Atmospheres,2013-01-01,118(13)