DOI: 10.1002/grl.50121
论文题名: Revised UV absorption spectra, ozone depletion potentials, and global warming potentials for the ozone-depleting substances CF2Br 2, CF2ClBr, and CF2BrCF2Br
作者: Papanastasiou D.K. ; Carlon N.R. ; Neuman J.A. ; Fleming E.L. ; Jackman C.H. ; Burkholder J.B.
刊名: Geophysical Research Letters
ISSN: 0094-9371
EISSN: 1944-9102
出版年: 2013
卷: 40, 期: 2 起始页码: 464
结束页码: 469
语种: 英语
Scopus关键词: Atmospheric lifetime
; Atmospheric model
; Cavity ring-down spectroscopy
; Global warming potential
; Ozone depletion potential
; Stratospheric ozone depletion
; Temperature range
; UV absorption spectrum
; Global warming
; Ozone
; Photolysis
; Halon
; absorption spectrum
; alkane
; atmospheric pollution
; global warming
; ozone
; parameterization
; photolysis
; Rayleigh number
; stratosphere
; ultraviolet radiation
英文摘要: The contribution of Halons, bromine-containing haloalkanes, to stratospheric ozone depletion is highly dependent on their atmospheric lifetime, which is primarily determined by UV photolysis. In this work, UV absorption cross-sections of the ozone-depleting substances CF2Br2 (Halon-1202), CF2ClBr (Halon-1211), and CF2BrCF 2Br (Halon-2402) were measured between 300 and 350 nm over the temperature range 210-296 K using cavity ringdown spectroscopy. Rayleigh scattering cross-sections were also determined and utilized in the cross-section determination. Spectra parameterizations are presented and 2-D atmospheric model calculations were used to determine global annually averaged atmospheric lifetimes of 2.52, 16.4, and 28.3 years, ozone depletion potentials (ODPs) of 1.95, 8.1, and 18.4, global warming potentials (GWPs) of 175, 1940, and 2270 (100-year time horizon), and associated uncertainties for CF2Br 2, CF2 ClBr, and CF2BrCF2Br, respectively. The revised lifetimes, ODPs, and GWPs differ from values currently reported in international assessments to evaluate ozone recovery and climate change. © 2013. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84874844208&doi=10.1002%2fgrl.50121&partnerID=40&md5=f7043d7c5afd763c18cd94eda5db50c4
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/6635
Appears in Collections: 气候减缓与适应
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作者单位: Earth System Research Laboratory, Chemical Sciences Division, National Oceanic and Atmospheric Administration, 325 Broadway, Boulder, CO 80305-3328, United States
Recommended Citation:
Papanastasiou D.K.,Carlon N.R.,Neuman J.A.,et al. Revised UV absorption spectra, ozone depletion potentials, and global warming potentials for the ozone-depleting substances CF2Br 2, CF2ClBr, and CF2BrCF2Br[J]. Geophysical Research Letters,2013-01-01,40(2).