Effects of synoptic patterns on the vertical structure of ozone in Hong Kong using lidar measurement

doi:10.1016/j.atmosenv.2021.118490

HFCAS OpenIR

	Effects of synoptic patterns on the vertical structure of ozone in Hong Kong using lidar measurement
	Lin, Changqing 1; Leung, Kenneth K. M.2; Yu, Alfred L. C.2; Tsang, Roy C. W.2; Tsui, Wilson B. C.3; Fung, Jimmy C. H.1,4,5; Ng, Eric K. W.2; Cheung, S. L.2; Tang, Alice W. Y.2; Ning, Zhi 1,5; Li, Ying 6; Zhang, Tianshu7 ; Lau, Alexis K. H.1,5,8
	2021-07-15
发表期刊	ATMOSPHERIC ENVIRONMENT
ISSN	1352-2310
通讯作者	Lau, Alexis K. H.(alau@ust.hk)
摘要	Long-term ozone lidar routine measurements are sparse in China. In this study, we used one year of continuous ozone lidar measurements to systematically investigate the effects of synoptic patterns on the vertical structure of ozone during high ozone episodes in Hong Kong. The height of the near-surface ozone layer was identified and compared with that of the mixing layer. The results showed that Hong Kong was greatly affected by ozone transport from the Pearl River Delta region when a tropical cyclone ("C" pattern) or a trough ("T" pattern) existed. When a high-pressure center was located to the north ("H" pattern) or when both a high-pressure system and a tropical cyclone existed ("CH" pattern), Hong Kong was affected by ozone transport from southeastern or southern China. Substantial amounts of ozone were transported within a layer near the ground with an average height of 0.83, 0.75, 0.94, and 0.85 km under the C, H, CH, and T synoptic patterns, respectively. Variation in the near-surface ozone layer height was consistent with that of the mixing layer height. Weak vertical mixing resulted in a shallow near-surface ozone layer under the C and H synoptic patterns. Due to the combined effect of near-surface transport and suppressed vertical mixing, the ozone concentrations were extremely high near the ground but rapidly declined with height under the C synoptic pattern. Our investigations of the vertical structure of ozone contribute to filling the knowledge gap between synoptic patterns and the evolution of high surface ozone episodes.
关键词	Ozone Lidar Meteorology Vertical mixing Horizontal transport
DOI	10.1016/j.atmosenv.2021.118490
关键词[WOS]	ATMOSPHERIC BOUNDARY-LAYER ; GROUND-BASED LIDAR ; SURFACE OZONE ; CHINA ; VARIABILITY ; POLLUTION ; POLLUTANTS ; EVOLUTION ; EMISSIONS ; IMPACTS
收录类别	SCI
语种	英语
资助项目	NSFC/RGC[N_HKUST638/19] ; Research Grants Council of Hong Kong[T24/504/17] ; Research Grants Council of Hong Kong[GRF 16202120] ; Special Fund Project for Science and Technology Innovation Strategy of Guangdong Province[2019B121205004] ; HKUST Institute for the Environment and Environmental Central Facility
项目资助者	NSFC/RGC ; Research Grants Council of Hong Kong ; Special Fund Project for Science and Technology Innovation Strategy of Guangdong Province ; HKUST Institute for the Environment and Environmental Central Facility
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
WOS类目	Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:000687040900004
出版者	PERGAMON-ELSEVIER SCIENCE LTD
引用统计	被引频次：12[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.hfcas.ac.cn:8080/handle/334002/124399
专题	中国科学院合肥物质科学研究院
通讯作者	Lau, Alexis K. H.
作者单位	1.Hong Kong Univ Sci & Technol, Div Environm & Sustainabil, Hong Kong, Peoples R China 2.Hong Kong Govt SAR, Environm Protect Dept, Air Sci Grp, Hong Kong, Peoples R China 3.PTC Int Ltd, Hong Kong, Peoples R China 4.Hong Kong Univ Sci & Technol, Dept Math, Hong Kong, Peoples R China 5.Hong Kong Univ Sci & Technol, Guangdong Hongkong Macau Joint Lab Collaborat Inn, Clear Water Bay, Hong Kong, Peoples R China 6.Southern Univ Sci & Technol, Dept Ocean Sci & Engn, Shenzhen, Peoples R China 7.Chinese Acad Sci, Anhui Inst Opt & Fine Mech, Key Lab Environm Opt & Technol, Hefei, Anhui, Peoples R China 8.Hong Kong Univ Sci & Technol, Dept Civil & Environm Engn, Hong Kong, Peoples R China
推荐引用方式 GB/T 7714	Lin, Changqing,Leung, Kenneth K. M.,Yu, Alfred L. C.,et al. Effects of synoptic patterns on the vertical structure of ozone in Hong Kong using lidar measurement[J]. ATMOSPHERIC ENVIRONMENT,2021,257.
APA	Lin, Changqing.,Leung, Kenneth K. M..,Yu, Alfred L. C..,Tsang, Roy C. W..,Tsui, Wilson B. C..,...&Lau, Alexis K. H..(2021).Effects of synoptic patterns on the vertical structure of ozone in Hong Kong using lidar measurement.ATMOSPHERIC ENVIRONMENT,257.
MLA	Lin, Changqing,et al."Effects of synoptic patterns on the vertical structure of ozone in Hong Kong using lidar measurement".ATMOSPHERIC ENVIRONMENT 257(2021).