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DOI | 10.1126/science.288.5465.500 |
New observational constraints for atmospheric hydroxyl on global and hemispheric scales | |
Montzka S.A.; Spivakovsky C.M.; Butler J.H.; Elkins J.W.; Lock L.T.; Mondeel D.J. | |
发表日期 | 2000 |
ISSN | 0036-8075 |
起始页码 | 500 |
结束页码 | 503 |
卷号 | 288期号:5465 |
英文摘要 | Dramatic declines in emissions of methyl chloroform (1,1,1- trichloroethane) resulting from the Montreal Protocol provide an unprecedented opportunity to improve our understanding of the oxidizing power of Earth's atmosphere. Atmospheric observations of this industrial gas during the late 1990s yield new insights into the global burden and distribution of the hydroxyl radical. Our results set firm upper limits on the global and Southern Hemispheric lifetimes of methyl chloroform and confirm tile predominance of hydroxyl in the tropics. Our analysis suggests a global lifetime for methyl chloroform of 5.2 (+0.2, -0.3) years, a Southern Hemispheric lifetime of 4.9 (+0.2, -0.3) years, and mean annual concentrations of OH that are 15 ± 10% higher south of the intertropical convergence zone than those north of tills natural mixing boundary between the hemispheres. |
英文关键词 | 1,1,1 trichloroethane; hydroxyl radical; atmospheric chemistry; atmospheric pollution; hydroxyl radical; Montreal Protocol; article; atmospheric dispersion; atmospheric transport; oxidation; priority journal; troposphere |
语种 | 英语 |
来源期刊 | Science
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文献类型 | 期刊论文 |
条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/244808 |
作者单位 | Natl. Oceanic and Atmosph. Admin., Climate Monitoring Diagnostics Lab., 325 Broadway, Boulder, CO 80303, United States; Dept. of Earth and Planet. Sciences, Div. of Eng. and Applied Sciences, Harvard University, Cambridge, MA 02138, United States; Coop. Inst. Res. in Environ. Sci., University of Colorado, Boulder, CO 80303, United States |
推荐引用方式 GB/T 7714 | Montzka S.A.,Spivakovsky C.M.,Butler J.H.,et al. New observational constraints for atmospheric hydroxyl on global and hemispheric scales[J],2000,288(5465). |
APA | Montzka S.A.,Spivakovsky C.M.,Butler J.H.,Elkins J.W.,Lock L.T.,&Mondeel D.J..(2000).New observational constraints for atmospheric hydroxyl on global and hemispheric scales.Science,288(5465). |
MLA | Montzka S.A.,et al."New observational constraints for atmospheric hydroxyl on global and hemispheric scales".Science 288.5465(2000). |
条目包含的文件 | 条目无相关文件。 |
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