| DOI: | 10.1002/2015GL064939
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| 论文题名: | HCFC-133a (CF3CH2Cl): OH rate coefficient, UV and infrared absorption spectra, and atmospheric implications |
| 作者: | McGillen M.R.; Bernard F.; Fleming E.L.; Burkholder J.B.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-9225
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| EISSN: | 1944-8956
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| 出版年: | 2015
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| 卷: | 42, 期:14 | | 起始页码: | 6098
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| 结束页码: | 6105
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| 语种: | 英语
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| 英文关键词: | hydrochlorofluorocarbon
; ozone-depleting substance
; photolysis
; UV cross section
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| Scopus关键词: | Absorption spectra
; Chemical reactions
; Electromagnetic wave absorption
; Fourier transform infrared spectroscopy
; Free radicals
; Global warming
; Infrared absorption
; Light absorption
; Ozone
; Ozone layer
; Phase interfaces
; Photolysis
; Atmospheric implications
; Global warming potential
; HydroChlorofluorocarbon
; Ozone depleting substances
; Ozone depletion potential
; Photochemical parameters
; Spectrum parameterization
; UV cross section
; Absorption spectroscopy
; atmospheric modeling
; global warming
; hydrochlorofluorocarbon
; infrared radiation
; ozone
; parameterization
; photochemistry
; photolysis
; radical
; steady-state equilibrium
; ultraviolet radiation
; uncertainty analysis
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| 英文摘要: | HCFC-133a (CF3CH2Cl), an ozone-depleting substance, is primarily removed from the atmosphere by gas-phase reaction with OH radicals and by UV photolysis. The rate coefficient, k, for the OH+HCFC-133a reaction was measured between 233 and 379K and is given by k(T)=(9.32±0.8)×10-13exp(-(1296±28)/T), where k(296K) was measured to be (1.10±0.02)×10-14 (cm3molecule-1s-1) (2σ precision uncertainty). The HCFC-133a UV absorption spectrum was measured between 184.95 and 240nm at 213-323K, and a spectrum parameterization is presented. The HCFC-133a atmospheric loss processes, lifetime, ozone depletion potential, and uncertainties were evaluated using a 2-D atmospheric model. The global annually averaged steady state lifetime and ozone depletion potential (ODP) were determined to be 4.45 (4.04-4.90)years and 0.017 (±0.001), respectively, where the ranges are based solely on the 2σ uncertainty in the kinetic and photochemical parameters. The infrared absorption spectrum of HCFC-133a was measured, and its global warming potential was determined to be 380 on the 100year time horizon. © 2015. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84938969154&doi=10.1002%2f2015GL064939&partnerID=40&md5=39f440ae374d4f5ff389380ff406e7de
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| Citation statistics: |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/8841
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| 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: | Earth System Research Laboratory, Chemical Sciences Division, National Oceanic and Atmospheric Administration, Boulder, CO, United States
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| Recommended Citation: | |
McGillen M.R.,Bernard F.,Fleming E.L.,et al. HCFC-133a (CF3CH2Cl): OH rate coefficient, UV and infrared absorption spectra, and atmospheric implications[J]. Geophysical Research Letters,2015-01-01,42(14).
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