气候变化领域集成服务门户(CCPortal): Changes in anthropogenic precursor emissions drive shifts in the ozone seasonal cycle throughout the northern midlatitude troposphere

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DOI	10.5194/acp-22-3507-2022
	Changes in anthropogenic precursor emissions drive shifts in the ozone seasonal cycle throughout the northern midlatitude troposphere
	Bowman, Henry; Turnock, Steven; Bauer, Susanne E.; Tsigaridis, Kostas; Deushi, Makoto; Oshima, Naga; O'Connor, Fiona M.; Horowitz, Larry; Wu, Tongwen; Zhang, Jie; Kubistin, Dagmar; Parrish, David D.
发表日期	2022
ISSN	1680-7316
EISSN	1680-7324
起始页码	3507
结束页码	3524
卷号	22 期号:5 页码:18
英文摘要	Simulations by six Coupled Model Intercomparison Project Phase 6 (CMIP6) Earth system models indicate that the seasonal cycle of baseline tropospheric ozone at northern midlatitudes has been shifting since the mid-20th century. Beginning in similar to 1940, the magnitude of the seasonal cycle increased by similar to 10 ppb (measured from seasonal minimum to maximum), and the seasonal maximum shifted to later in the year by about 3 weeks. This shift maximized in the mid-1980s, followed by a reversal - the seasonal cycle decreased in amplitude and the maximum shifted back to earlier in the year. Similar changes are seen in measurements collected from the 1970s to the present. The timing of the seasonal cycle changes is generally concurrent with the rise and fall of anthropogenic emissions that followed industrialization and the subsequent implementation of air quality emission controls. A quantitative comparison of the temporal changes in the ozone seasonal cycle at sites in both Europe and North America with the temporal changes in ozone precursor emissions across the northern midlatitudes found a high degree of similarity between these two temporal patterns. We hypothesize that changing precursor emissions are responsible for the shift in the ozone seasonal cycle; this is supported by the absence of such seasonal shifts in southern midlatitudes where anthropogenic emissions are much smaller. We also suggest a mechanism by which changing emissions drive the changing seasonal cycle: increasing emissions of NOx allow summertime photochemical production of ozone to become more important than ozone transported from the stratosphere, and increasing volatile organic compounds (VOCs) lead to progressively greater photochemical ozone production in the summer months, thereby increasing the amplitude of the seasonal ozone cycle. Decreasing emissions of both precursor classes then reverse these changes. The quantitative parameter values that characterize the seasonal shifts provide useful benchmarks for evaluating model simulations, both against observations and between models.
学科领域	Environmental Sciences; Meteorology & Atmospheric Sciences
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:000772538600001
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/273748
作者单位	Carleton College; Met Office - UK; Hadley Centre; University of Leeds; National Aeronautics & Space Administration (NASA); NASA Goddard Space Flight Center; Columbia University; Meteorological Research Institute - Japan; National Oceanic Atmospheric Admin (NOAA) - USA; China Meteorological Administration; Deutscher Wetterdienst
推荐引用方式 GB/T 7714	Bowman, Henry,Turnock, Steven,Bauer, Susanne E.,et al. Changes in anthropogenic precursor emissions drive shifts in the ozone seasonal cycle throughout the northern midlatitude troposphere[J],2022,22(5):18.
APA	Bowman, Henry.,Turnock, Steven.,Bauer, Susanne E..,Tsigaridis, Kostas.,Deushi, Makoto.,...&Parrish, David D..(2022).Changes in anthropogenic precursor emissions drive shifts in the ozone seasonal cycle throughout the northern midlatitude troposphere.ATMOSPHERIC CHEMISTRY AND PHYSICS,22(5),18.
MLA	Bowman, Henry,et al."Changes in anthropogenic precursor emissions drive shifts in the ozone seasonal cycle throughout the northern midlatitude troposphere".ATMOSPHERIC CHEMISTRY AND PHYSICS 22.5(2022):18.