气候变化领域集成服务门户(CCPortal): Tropospheric ozone chanaes and ozone sensitivity from the present day to the future under shared socio-economic pathways

CCPortal

DOI	10.5194/acp-22-1209-2022
	Tropospheric ozone chanaes and ozone sensitivity from the present day to the future under shared socio-economic pathways
	Liu, Zhenze; Doherty, Ruth M.; Wild, Oliver; O'Connor, Fiona M.; Turnock, Steven T.
发表日期	2022
ISSN	1680-7316
EISSN	1680-7324
起始页码	1209
结束页码	1227
卷号	22 期号:2 页码:19
英文摘要	Tropospheric ozone is important to future air quality and climate. We investigate ozone changes and ozone sensitivity to changing emissions in the context of climate change from the present day (2004-2014) to the future (2045-2055) under a range of shared socio-economic pathways (SSPs). We apply the United Kingdom Earth System Model, UKESM1, with an extended chemistry scheme including more reactive volatile organic compounds (VOCs) to quantify ozone burdens as well as ozone sensitivities globally and regionally based on nitrogen oxide (NOx) and VOC mixing ratios. We show that the tropospheric ozone burden increases by 4 % under a development pathway with higher NOx and VOC emissions (SSP3-7.0) but decreases by 7 % under the same pathway if NOx and VOC emissions are reduced (SSP3-7.0-lowNTCF) and by 5 % if atmospheric methane (CH4) mixing ratios are reduced (SSP3-7.0-lowCH(4)). Global mean surface ozone mixing ratios are reduced by 3-5 ppb under SSP3-7.0-lowNTCF and by 2-3 ppb under SSP3-7.0-lowCH(4). However, surface ozone changes vary substantially by season in high-emission regions under future pathways, with decreased ozone mixing ratios in summer and increased ozone mixing ratios in winter when NOx emissions are reduced. VOC-limited areas are more extensive in winter (7 %) than in summer (3 %) across the globe. North America, Europe, and East Asia are the dominant VOC-limited regions in the present day, but North America and Europe become more NOx-limited in the future mainly due to reductions in NOx emissions. The impacts of VOC emissions on ozone sensitivity are limited in North America and Europe because reduced anthropogenic VOC emissions are partly offset by higher biogenic VOC emissions. Ozone sensitivity is not greatly influenced by changing CH(4 )mixing ratios. South Asia becomes the dominant VOC-limited region under future pathways. We highlight that reductions in NOx emissions are required to transform ozone production from VOC to NOx limitation, but that these lead to increased ozone mixing ratios in high-emission regions, and hence emission controls on VOC and CH(4 )are also necessary.
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:000748748000001
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/273128
作者单位	University of Edinburgh; Lancaster University; Met Office - UK; Hadley Centre; Met Office - UK; University of Leeds
推荐引用方式 GB/T 7714	Liu, Zhenze,Doherty, Ruth M.,Wild, Oliver,et al. Tropospheric ozone chanaes and ozone sensitivity from the present day to the future under shared socio-economic pathways[J],2022,22(2):19.
APA	Liu, Zhenze,Doherty, Ruth M.,Wild, Oliver,O'Connor, Fiona M.,&Turnock, Steven T..(2022).Tropospheric ozone chanaes and ozone sensitivity from the present day to the future under shared socio-economic pathways.ATMOSPHERIC CHEMISTRY AND PHYSICS,22(2),19.
MLA	Liu, Zhenze,et al."Tropospheric ozone chanaes and ozone sensitivity from the present day to the future under shared socio-economic pathways".ATMOSPHERIC CHEMISTRY AND PHYSICS 22.2(2022):19.