气候变化领域集成服务门户(CCPortal): Small interannual variability of global atmospheric hydroxyl

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DOI	10.1126/science.1197640
	Small interannual variability of global atmospheric hydroxyl
	Montzka S.A.; Krol M.; Dlugokencky E.; Hall B.; Jöckel P.; Lelieveld J.
发表日期	2011
ISSN	0036-8075
起始页码	67
结束页码	69
卷号	331 期号:6013
英文摘要	The oxidizing capacity of the global atmosphere is largely determined by hydroxyl (OH) radicals and is diagnosed by analyzing methyl chloroform (CH 3CCl3) measurements. Previously, large year-to-year changes in global mean OH concentrations have been inferred from such measurements, suggesting that the atmospheric oxidizing capacity is sensitive to perturbations by widespread air pollution and natural influences. We show how the interannual variability in OH has been more precisely estimated from CH 3CCl3 measurements since 1998, when atmospheric gradients of CH3CCl3 had diminished as a result of the Montreal Protocol. We infer a small interannual OH variability as a result, indicating that global OH is generally well buffered against perturbations. This small variability is consistent with measurements of methane and other trace gases oxidized primarily by OH, as well as global photochemical model calculations.
英文关键词	1,1,1 trichloroethane; hydroxyl radical; methane; annual variation; atmospheric pollution; chloroform; hydroxyl radical; methane; Montreal Protocol; photochemistry; air pollution; article; atmosphere; chemical model; concentration (parameters); gas; oxidation; photochemistry; priority journal
语种	英语
来源期刊	Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/244807
作者单位	NOAA Earth System Research Laboratory, Boulder, CO 80305, United States; Institute for Marine and Atmospheric Research Utrecht, University of Utrecht, 3584 CC Utrecht, Netherlands; Meteorology and Air Quality Group, Wageningen University, 6708 PB Wageningen, Netherlands; Department of Atmospheric Chemistry, Max Planck Institute for Chemistry, D-55128 Mainz, Germany; Cyprus Institute, Nicosia 1645, Cyprus; Deutsches Zentrum für Luft- und Raumfahrt, Institut für Physik der Atmosphäre, Oberpfaffenhofen, D-82234 Wessling, Germany
推荐引用方式 GB/T 7714	Montzka S.A.,Krol M.,Dlugokencky E.,et al. Small interannual variability of global atmospheric hydroxyl[J],2011,331(6013).
APA	Montzka S.A.,Krol M.,Dlugokencky E.,Hall B.,Jöckel P.,&Lelieveld J..(2011).Small interannual variability of global atmospheric hydroxyl.Science,331(6013).
MLA	Montzka S.A.,et al."Small interannual variability of global atmospheric hydroxyl".Science 331.6013(2011).