气候变化领域集成服务门户(CCPortal): Investigations on the anthropogenic reversal of the natural ozone gradient between northern and southern midlatitudes

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DOI	10.5194/acp-21-9669-2021
	Investigations on the anthropogenic reversal of the natural ozone gradient between northern and southern midlatitudes
	Parrish D.D.; Derwent R.G.; Turnock S.T.; O'Connor F.M.; Staehelin J.; Bauer S.E.; Deushi M.; Oshima N.; Tsigaridis K.; Wu T.; Zhang J.
发表日期	2021
ISSN	1680-7316
起始页码	9669
结束页码	9679
卷号	21 期号:12
英文摘要	Our quantitative understanding of natural tropospheric ozone concentrations is limited by the paucity of reliable measurements before the 1980s. We utilize the existing measurements to compare the long-term ozone changes that occurred within the marine boundary layer at northern and southern midlatitudes. Since 1950 ozone concentrations have increased by a factor of 2.1 ± 0.2 in the Northern Hemisphere (NH) and are presently larger than in the Southern Hemisphere (SH), where only a much smaller increase has occurred. These changes are attributed to increased ozone production driven by anthropogenic emissions of photochemical ozone precursors that increased with industrial development. The greater ozone concentrations and increases in the NH are consistent with the predominant location of anthropogenic emission sources in that hemisphere. The available measurements indicate that this interhemispheric gradient was much smaller and was likely reversed in the pre-industrial troposphere with higher concentrations in the SH. Six Earth system model (ESM) simulations indicate similar total NH increases (1.9 with a standard deviation of 0.3), but they occurred more slowly over a longer time period, and the ESMs do not find higher pre-industrial ozone in the SH. Several uncertainties in the ESMs may cause these model-measurement disagreements: the assumed natural nitrogen oxide emissions may be too large, the relatively greater fraction of ozone injected by stratosphere-troposphere exchange to the NH may be overestimated, ozone surface deposition to ocean and land surfaces may not be accurately simulated, and model treatment of emissions of biogenic hydrocarbons and their photochemistry may not be adequate. © 2021 David D. Parrish et al.
语种	英语
scopus关键词	atmospheric deposition; boundary layer; concentration (composition); human activity; marine atmosphere; midlatitude environment; nitrogen oxides; Northern Hemisphere; ozone; photochemistry; stratosphere-troposphere interaction; troposphere
来源期刊	ATMOSPHERIC CHEMISTRY AND PHYSICS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/246773
作者单位	David.D.Parrish, LLC, Boulder, CO 80303, United States; Rdscientific, Newbury, Berkshire, RG14 6LH, United Kingdom; Met Office Hadley Centre, Exeter, United Kingdom; Department of Environmental Systems Science, ETH Zurich, Zurich, Switzerland; NASA Goddard Institute for Space Studies, New York, NY, United States; Center for Climate Systems Research, Columbia University, New York, NY, United States; Meteorological Research Institute, 1-1 Nagamine, Ibaraki, Tsukuba, 305-0052, Japan; Beijing Climate Center, China Meteorological Administration, Beijing, China
推荐引用方式 GB/T 7714	Parrish D.D.,Derwent R.G.,Turnock S.T.,et al. Investigations on the anthropogenic reversal of the natural ozone gradient between northern and southern midlatitudes[J],2021,21(12).
APA	Parrish D.D..,Derwent R.G..,Turnock S.T..,O'Connor F.M..,Staehelin J..,...&Zhang J..(2021).Investigations on the anthropogenic reversal of the natural ozone gradient between northern and southern midlatitudes.ATMOSPHERIC CHEMISTRY AND PHYSICS,21(12).
MLA	Parrish D.D.,et al."Investigations on the anthropogenic reversal of the natural ozone gradient between northern and southern midlatitudes".ATMOSPHERIC CHEMISTRY AND PHYSICS 21.12(2021).