气候变化领域集成服务门户(CCPortal): A critical view of long-term AVHRR aerosol data record in China: Retrieval frequency and heavy pollution

CCPortal

DOI	10.1016/j.atmosenv.2019.117246
	A critical view of long-term AVHRR aerosol data record in China: Retrieval frequency and heavy pollution
	Tao M.; Li R.; Wang L.; Lan F.; Wang Z.; Tao J.; Che H.; Wang L.; Chen L.
发表日期	2020
ISSN	13522310
英文摘要	The recent AVHRR aerosol products expended from MODIS Deep Blue (DB) algorithm provide an unprecedented long-term data record over land that dates back to 1980s. Unlike previous studies focused on performance of AVHRR retrievals, here we present a critical view into the influence of retrieval frequency on consistency of AVHRR Aerosol Optical Depth (AOD) with other satellite DB products, and application potential in characterizing the dramatic aerosol loading in China. Despite the good consistency of collocated AVHRR, SeaWiFS, and MODIS DB AOD, their different retrieval frequency leads to distinct distribution of annual or seasonal AOD. In particular, the over-strict cloud screening of AVHRR with fewer bands tends to filter out high-AOD and clean bright surface, with the overall AOD frequency only half of MODIS's. Retrieval frequency and selection criterion of AOD quality can determine representativity and consistency of conventional averaged satellite AOD, uncertainties of which should be considered according to specific application purpose. The time series variation of AVHRR AOD shows that early 1990s is a key time point when frequent haze pollution appears and increases in eastern China. By contrast, aerosol loading in 1995–1999 has reached similar level as in 2000s with notable hotspot of high-AOD (~0.8–0.9) and slight changes. Our results shows that full record of AVHRR aerosol products with corresponding improvement can greatly renew the understanding of aerosols in China. © 2019 Elsevier Ltd
英文关键词	AOD; AVHRR; Characterization; China; Long-term
学科领域	Pollution; Radiometers; Supercomputers; Aerosol optical depths; AVHRR; China; Long term data record; Long-term; Representativity; Selection criteria; Time series variations; Aerosols
语种	英语
scopus关键词	Pollution; Radiometers; Supercomputers; Aerosol optical depths; AVHRR; China; Long term data record; Long-term; Representativity; Selection criteria; Time series variations; Aerosols
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/120869
作者单位	Laboratory of Critical Zone Evolution, School of Geography and Information Engineering, China University of Geosciences, Wuhan, 430074, China; School of Resources and Environmental Science, Hubei University, Wuhan, 430062, China; State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, 100029, China; State Key Laboratory of Remote Sensing Science, Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences, Beijing, 100101, China; Key Laboratory of Atmospheric Chemistry, Chinese Academy of Meteorological Sciences, Beijing, 100081, China
推荐引用方式 GB/T 7714	Tao M.,Li R.,Wang L.,et al. A critical view of long-term AVHRR aerosol data record in China: Retrieval frequency and heavy pollution[J],2020.
APA	Tao M..,Li R..,Wang L..,Lan F..,Wang Z..,...&Chen L..(2020).A critical view of long-term AVHRR aerosol data record in China: Retrieval frequency and heavy pollution.Atmospheric Environment.
MLA	Tao M.,et al."A critical view of long-term AVHRR aerosol data record in China: Retrieval frequency and heavy pollution".Atmospheric Environment (2020).