气候变化领域集成服务门户(CCPortal): Multi-dimensional satellite observations of aerosol properties and aerosol types over three major urban clusters in eastern China

CCPortal

DOI	10.5194/acp-21-12331-2021
	Multi-dimensional satellite observations of aerosol properties and aerosol types over three major urban clusters in eastern China
	Liu Y.; Lin T.; Hong J.; Wang Y.; Shi L.; Huang Y.; Wu X.; Zhou H.; Zhang J.; De Leeuw G.
发表日期	2021
ISSN	1680-7316
起始页码	12331
结束页码	12358
卷号	21 期号:16
英文摘要	Using 14 years (2007-2020) of data from passive (MODIS/Aqua) and active (CALIOP/CALIPSO) satellite measurements over China, we investigate (1) the temporal and spatial variation of aerosol properties over the Beijing-Tianjin-Hebei (BTH) region, the Yangtze River Delta (YRD), and the Pearl River Delta (PRD) and (2) the vertical distribution of aerosol types and extinction coefficients for different aerosol optical depth (AOD) and meteorological conditions. The results show the different spatial patterns and seasonal variations of the AOD over the three regions. Annual time series reveal the occurrence of AOD maxima in 2011 over the YRD and in 2012 over the BTH and PRD; thereafter the AOD decreases steadily. Using the CALIOP vertical feature mask, the relative frequency of occurrence (rFO) of each aerosol type in the atmospheric column is analyzed: rFOs of dust and polluted dust decrease from north to south; rFOs of clean ocean, polluted continental, clean continental and elevated smoke aerosol increase from north to south. In the vertical, the peak frequency of occurrence (FO) for each aerosol type depends on region and season and varies with AOD and meteorological conditions. In general, three distinct altitude ranges are observed with the peak FO at the surface (clean continental and clean marine aerosol), at -1/41 km (polluted dust and polluted continental aerosol) and at -1/43 km (elevated smoke aerosol), whereas dust aerosol may occur over the whole altitude range considered in this study (from the surface up to 8 km). The designation of the aerosol type in different height ranges may to some extent reflect the CALIOP aerosol type classification approach. Air mass trajectories indicate the different source regions for the three study areas and for the three different altitude ranges over each area. In this study nighttime CALIOP profiles are used. The comparison with daytime profiles shows substantial differences in the FO profiles with altitude, which suggest effects of boundary layer dynamics and aerosol transport on the vertical distribution of aerosol types, although differences due to day-night CALIOP performance cannot be ruled out. © 2021 Yuqin Liu et al.
语种	英语
scopus关键词	aerosol property; CALIOP; optical depth; satellite imagery; seasonal variation; spatial variation; urban area; vertical distribution; Beijing [Beijing (ADS)]; Beijing [China]; China; Guangdong; Hebei; Tianjin; Yangtze Delta; Zhujiang Delta
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/246647
作者单位	Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, China; Key Laboratory of Digital Earth Sciences, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, 100094, China; Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100029, China; Institute for Environmental and Climate Research, Jinan University, Guangdong, Guangzhou, 511443, China; Rand D Satellite Observations, Royal Netherlands Meteorological Institute (KNMI), De Bilt, 3730AE, Netherlands; Aerospace Information Research Institute, Chinese Academy of Sciences (AirCAS), No. 20 Datun Road, Chaoyang District, Beijing, 100101, China; School of Atmospheric Physics, Nanjing University of Information Science and Technology (NUIST), No. 219, Ningliu Road, Jiangsu, Nanjing, China; School of Environment Science and Spatial Informatics, China University of Mining and Technology (CUMT), Jiangsu, Xuzhou, 221116, China; Coastal a...
推荐引用方式 GB/T 7714	Liu Y.,Lin T.,Hong J.,et al. Multi-dimensional satellite observations of aerosol properties and aerosol types over three major urban clusters in eastern China[J],2021,21(16).
APA	Liu Y..,Lin T..,Hong J..,Wang Y..,Shi L..,...&De Leeuw G..(2021).Multi-dimensional satellite observations of aerosol properties and aerosol types over three major urban clusters in eastern China.ATMOSPHERIC CHEMISTRY AND PHYSICS,21(16).
MLA	Liu Y.,et al."Multi-dimensional satellite observations of aerosol properties and aerosol types over three major urban clusters in eastern China".ATMOSPHERIC CHEMISTRY AND PHYSICS 21.16(2021).