气候变化领域集成服务门户(CCPortal): Surface Ozone-Meteorology Relationships: Spatial Variations and the Role of the Jet Stream

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DOI	10.1029/2020JD032735
	Surface Ozone-Meteorology Relationships: Spatial Variations and the Role of the Jet Stream
	Kerr G.H.; Waugh D.W.; Steenrod S.D.; Strode S.A.; Strahan S.E.
发表日期	2020
ISSN	2169897X
卷号	125 期号:21
英文摘要	We investigate the relationships among summertime ozone (O3), temperature, and humidity on daily timescales across the Northern Hemisphere using observations and model simulations. Temperature and humidity are significantly positively correlated with O3 across continental regions in the midlatitudes (∼35–60°N). Over the oceans, the relationships are consistently negative. For continental regions outside the midlatitudes, the O3-meteorology correlations are mixed in strength and sign but generally weak. Over some high latitude, low latitude, and marine regions, temperature and humidity are significantly anticorrelated with O3. Daily variations in transport patterns linked to the position and meridional movement of the jet stream drive the relationships among O3, temperature, and humidity. Within the latitudinal range of the jet, there is an increase (decrease) in O3, temperature, and humidity over land with poleward (equatorward) movement of the jet, while over the oceans poleward movement of the jet results in decreases of these fields. Beyond the latitudes where the jet traverses, the meridional movement of the jet stream has variable or negligible effects on surface-level O3, temperature, and humidity. The O3-meteorology relationships are largely the product of the jet-induced changes in the surface-level meridional flow acting on the background meridional O3 gradient. Our results underscore the importance of considering the role of the jet stream and surface-level flow for the O3-meteorology relationships, especially in light of expected changes to these features under climate change. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	cyclones; humidity; jet stream; mean meridional circulation; surface ozone; temperature
语种	英语
来源期刊	Journal of Geophysical Research: Atmospheres
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/185667
作者单位	Department of Earth and Planetary Sciences, Johns Hopkins University, Baltimore, MD, United States; Now at Department of Environmental and Occupational Health, George Washington University, Washington, DC, United States; School of Mathematics and Statistics, University of New South Wales, Sydney, NSW, Australia; NASA Goddard Space Flight Center, Greenbelt, MD, United States; Universities Space Research Association, GESTAR, Columbia, MD, United States
推荐引用方式 GB/T 7714	Kerr G.H.,Waugh D.W.,Steenrod S.D.,et al. Surface Ozone-Meteorology Relationships: Spatial Variations and the Role of the Jet Stream[J],2020,125(21).
APA	Kerr G.H.,Waugh D.W.,Steenrod S.D.,Strode S.A.,&Strahan S.E..(2020).Surface Ozone-Meteorology Relationships: Spatial Variations and the Role of the Jet Stream.Journal of Geophysical Research: Atmospheres,125(21).
MLA	Kerr G.H.,et al."Surface Ozone-Meteorology Relationships: Spatial Variations and the Role of the Jet Stream".Journal of Geophysical Research: Atmospheres 125.21(2020).