气候变化领域集成服务门户(CCPortal): Optical properties and seasonal distribution of aerosol layers observed by lidar over Jinhua, southeast China

CCPortal

DOI	10.1016/j.atmosenv.2021.118456
	Optical properties and seasonal distribution of aerosol layers observed by lidar over Jinhua, southeast China
	Yu S.; Liu D.; Xu J.; Wang Z.; Wu D.; Shan Y.; Shao J.; Mao M.; Qian L.; Wang B.; Xie C.; Wang Y.
发表日期	2021
ISSN	1352-2310
卷号	257
英文摘要	To explore the vertical distribution of the aerosol optical parameters over Jinhua City, southeast China, a Dual-wavelength Mie Polarization Raman Lidar (DMPRL) system was operated to obtain the atmospheric backscattering signals from June 2013 to May 2014. Profiles of aerosol occurrence frequency and aerosol optical parameters, including backscattering ratio, particle depolarization ratio, and color ratio, were retrieved from the lidar signals. The cases with a cloud base below 6 km and profiles on rainy days were eliminated. The multi-layer vertical aerosol structure was found in Jinhua area and the altitude-resolved optical properties varies with seasons. In autumn, winter and spring, the aerosol layer occurrence frequencies were higher than summer at 3–6 km, especially in spring. The mean particle depolarization ratio at 4–6 km exceeded 0.1 in autumn, winter, and spring, whereas it was <0.05 in summer. Aerosol with high color ratios appeared at 0–2 km in autumn. The analysis of one-year backward trajectories exhibits a dust dominating aerosol layer at 4–6 km in autumn, winter, and spring, a partially sea salt dominating aerosol layer at 0–2 km in autumn and a partially dust aerosol layer at 0–2 km in winter. Six cases were used to study the influence of aerosol advection and local sources vertical aerosol properties distribution. Through our analysis, aerosols at different altitudes are influenced by different sources, which are important for understanding the spatiotemporal characteristics of aerosol layers over Jinhua. The vertical distribution of aerosol properties in Jinhua area is affected by locally emitted aerosol, transported dust and ocean aerosol. © 2021 The Authors
关键词	Aerosol layer HYSPLIT Lidar Optical properties Vertical distribution
语种	英语
scopus关键词	Aerosols; Backscattering; Depolarization; Dust; Optical radar; Optical variables control; Aerosol layers; Aerosol optical parameters; Aerosol properties; Color ratios; HYSPLIT; Optical-; Particle depolarization ratios; Property; Seasonal distributions; Vertical distributions; Optical properties; aerosol; backscatter; cloud; lidar; optical property; particle size; seasonal variation; spatial distribution; aerosol; altitude; Article; autumn; China; climate change; comparative study; continuous wavelet transform; depolarization; dust storm; priority journal; seasonal variation; signal noise ratio; solar radiation; spring; winter; China; Jinhua; Zhejiang
来源期刊	ATMOSPHERIC ENVIRONMENT
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/248390
作者单位	School of Environmental Science and Optoelectronic Technology, University of Science and Technology of China, Hefei, Anhui 230026, China; Key Laboratory of Atmospheric Optics, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei, Anhui 230031, China; Advanced Laser Technology Laboratory of Anhui Province, Hefei, Anhui 230037, China; Science Island Branch of Graduate School, University of Science and Technology of China, Hefei, Anhui 230026, China; Environment and Climate Science Department, Brookhaven National Laboratory, UptonNY 11973, United States; Institute of Information Optics, Zhejiang Normal University, Jinhua, 321004, China; Zhejiang Meteorology Science Institute, Hangzhou, Zhejiang 310008, China
推荐引用方式 GB/T 7714	Yu S.,Liu D.,Xu J.,et al. Optical properties and seasonal distribution of aerosol layers observed by lidar over Jinhua, southeast China[J],2021,257.
APA	Yu S..,Liu D..,Xu J..,Wang Z..,Wu D..,...&Wang Y..(2021).Optical properties and seasonal distribution of aerosol layers observed by lidar over Jinhua, southeast China.ATMOSPHERIC ENVIRONMENT,257.
MLA	Yu S.,et al."Optical properties and seasonal distribution of aerosol layers observed by lidar over Jinhua, southeast China".ATMOSPHERIC ENVIRONMENT 257(2021).