气候变化领域集成服务门户(CCPortal): Spatiotemporal variations of surface ozone and its influencing factors across Tibet: A Geodetector-based study

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DOI	10.1016/j.scitotenv.2021.152651
	Spatiotemporal variations of surface ozone and its influencing factors across Tibet: A Geodetector-based study
	Chen, Yan; Zhou, Yunqiao; NixiaCiren; Zhang, Huifang; Wang, Caihong; GesangDeji; Wang, Xiaoping
通讯作者	Zhou, YQ ; Wang, XP (通讯作者)
发表日期	2022
ISSN	0048-9697
EISSN	1879-1026
卷号	813
英文摘要	Reasons regarding surface ozone formation and distribution in remote regions is limited. Tibet is an important remote area on Earth, with various climates and extremely high elevation (average similar to 4000 m), which makes it a good place to study the spatiotemporal distribution of surface ozone and explore the causes. Based on ground monitoring data from 18 stations on Tibet between 2015 and 2019, the annual, seasonal, monthly, and diurnal variations of surface ozone were analyzed. The annual mean values (60.7-72.5 mu g/m(3)) presented an increasing trend during the past five years, with seasonal concentrations of surface ozone higher in spring than in winter. Spatially, both the ground observations and high-resolution remote sensing data indicated that the surface ozone was relatively high in the southwest regions of Tibet, and low in the southeast and northeast areas. Geodetector analysis found that relative humidity (RID, normalized difference vegetation index (NDVI), and solar radiation (SR) were the top three individual factors affecting surface ozone distribution, while NO2, PM10, and PM2.5 showed less influence. All influencing factors showed an improvement through the two-factor interaction. The associations of RH boolean AND PM10 (q = 0.77), RH boolean AND NDVI (q = 0.72), and NDVICISR (q = 0.73) exhibited a strong impact on surface ozone distribution, suggesting that places with sparse vegetation cover, dry climate and strong SR would usually cause high atmospheric ozone burden. This could also explain why concentrations of surface ozone continue to increase in some remote areas worldwide with ecological deterioration and desertification.
关键词	LONG-TERM TRENDS TEMPORAL VARIATIONS CHINA POLLUTION EXPOSURE PLATEAU STATION SITE O-3 VARIABILITY
英文关键词	Surface ozone; Spatiotemporal variation; Geodetector; Influencing factor; Tibet
语种	英语
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Environmental Sciences
WOS记录号	WOS:000740215300002
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/260588
推荐引用方式 GB/T 7714	Chen, Yan,Zhou, Yunqiao,NixiaCiren,et al. Spatiotemporal variations of surface ozone and its influencing factors across Tibet: A Geodetector-based study[J]. 中国科学院青藏高原研究所,2022,813.
APA	Chen, Yan.,Zhou, Yunqiao.,NixiaCiren.,Zhang, Huifang.,Wang, Caihong.,...&Wang, Xiaoping.(2022).Spatiotemporal variations of surface ozone and its influencing factors across Tibet: A Geodetector-based study.SCIENCE OF THE TOTAL ENVIRONMENT,813.
MLA	Chen, Yan,et al."Spatiotemporal variations of surface ozone and its influencing factors across Tibet: A Geodetector-based study".SCIENCE OF THE TOTAL ENVIRONMENT 813(2022).