气候变化领域集成服务门户(CCPortal): Investigation of the Influence of Water Vapor on Heavy Pollution and Its Relationship With AOD Using MAX-DOAS on the Coast of the Yellow Sea

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DOI	10.1029/2020JD034143
	Investigation of the Influence of Water Vapor on Heavy Pollution and Its Relationship With AOD Using MAX-DOAS on the Coast of the Yellow Sea
	Ren H.; Li A.; Xie P.; Hu Z.; Xu J.; Huang Y.; Li X.; Zhong H.; Tian X.; Ren B.; Wang S.; Chai W.
发表日期	2021
ISSN	2169-897X
卷号	126 期号:20
英文摘要	Multi-AXis Differential Optical Absorption Spectroscopy (MAX-DOAS) observations were carried out from March 1, 2019 to February 29, 2020 in Qingdao, China, on the coast of the Yellow Sea (120.67°E, 36.35°N). Atmospheric parameters retrieved from the MAX-DOAS instrument included vertical profiles of aerosol extinction, gaseous aerosol precursors (NO2, SO2), and H2O. First, the seasonal relationship between aerosol optical depth (AOD) and the H2O vertical column density (VCD) was analyzed. The correlation coefficients (r) between AOD and H2O VCD were largest in the winter, followed by spring, autumn, and summer. In addition, the correlation during heavily polluted weather was much higher than that during clean weather or slightly polluted weather. Then, an analysis of the wind speed and direction, and trace gas VCDs during the months with frequent pollution (December 2019 and January 2020) found that heavy pollution episodes easily occurred in Qingdao due to a combination of high H2O concentrations and low wind speeds. Out of four pollution events (P1, P2, P3, P4), both the H2O concentration and pollution were highest during the first event (P1). The H2O VCD, AOD, sulfate AOD, and total column HNO3 simultaneously increased during P1, while the NO2 and SO2 VCDs decreased. These trends are consistent with liquid phase reactions. Finally, the 1,000 m backward trajectory for the wind and the gas profiles during P1 revealed that the pollutants increased in Qingdao due to the influence of a polluted air mass from the western inland regions. © 2021. American Geophysical Union. All Rights Reserved.
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/236937
作者单位	Key Laboratory of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, China; University of Science and Technology of China, Hefei, China; CAS Center for Excellence in Regional Atmospheric Environment, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, China; Institutes of Physical Science and Information Technology, Anhui University, Hefei, China; China National Environmental Monitoring Centre, Beijing, China
推荐引用方式 GB/T 7714	Ren H.,Li A.,Xie P.,et al. Investigation of the Influence of Water Vapor on Heavy Pollution and Its Relationship With AOD Using MAX-DOAS on the Coast of the Yellow Sea[J],2021,126(20).
APA	Ren H..,Li A..,Xie P..,Hu Z..,Xu J..,...&Chai W..(2021).Investigation of the Influence of Water Vapor on Heavy Pollution and Its Relationship With AOD Using MAX-DOAS on the Coast of the Yellow Sea.Journal of Geophysical Research: Atmospheres,126(20).
MLA	Ren H.,et al."Investigation of the Influence of Water Vapor on Heavy Pollution and Its Relationship With AOD Using MAX-DOAS on the Coast of the Yellow Sea".Journal of Geophysical Research: Atmospheres 126.20(2021).