气候变化领域集成服务门户(CCPortal): Comparison of AVHRR aerosol optical depth production against CARSNET data in China

CCPortal

DOI	10.1016/j.atmosres.2018.11.005
	Comparison of AVHRR aerosol optical depth production against CARSNET data in China
	Han X.; Zou X.; Song Z.; Fu D.; Xia X.; Che H.
发表日期	2019
ISSN	0169-8095
起始页码	12
结束页码	24
卷号	218
英文摘要	This study presents a dedicated evaluation of a newly released satellite aerosol product derived from Advanced Very-High-Resolution Radiometer (AVHRR) measurements by using the Deep Blue/SOAR aerosol retrieval algorithm. Aerosol product from the Chinese Aerosol Network (CARSNET) is used as the ground truth in the comparison. Comparison of AVHRR and CARSNET aerosol optical depth (AOD) products during 2006–2011 shows that the accuracy and precision of AVHRR AOD demonstrate complicated spatial and seasonal dependence. First, AVHRR AOD is in good agreement with CARSNET AOD over eastern urban areas in China. 45%–78% of data points fall within the expected error range (±0.05 ± 0.25× AOD) over there. Second, in regions with natural vegetation cover and relatively clean environment conditions, low correlation is observed due to small AOD loadings (<0.2 and < 0.6, respectively) and small AOD variations (<1.0). Third, for dust affected arid and semi-arid dry regions and western urban regions, AVHRR AOD products need further great improvement. A large regional variation of AOD bias with increasing CARSNET AOD may be due to insufficient representation of aerosol properties in the algorithm. The systematic underestimation of AVHRR AOD in most sites likely attributes to improper surface reflectance estimation, which should be furthermore improved in the deep blue algorithm. AVHRR has great potential in the retrieval of the historical AOD record from 1979 to the present, therefore, one would expect that AVHRR aerosol products would contribute to furthering our understanding of aerosol effects on climate and environment. © 2018 Elsevier B.V.
英文关键词	Aerosol assumptions; Aerosol optical depth; AVHRR; CARSNET; Surface reflectance
语种	英语
scopus关键词	Advanced very high resolution radiometers (AVHRR); Optical properties; Reflection; Supercomputers; Accuracy and precision; Aerosol optical depths; Aerosol retrieval algorithms; AVHRR; CARSNET; Deep blue algorithms; Seasonal dependence; Surface reflectance; Aerosols; aerosol; aerosol composition; aerosol formation; AVHRR; data set; optical depth; surface reflectance; China
来源期刊	Atmospheric Research
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/162083
作者单位	LAGEO, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, 100029, China; College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China; Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Nanjing University of Information Science & Technology, Nanjing, 210044, China; Key Laboratory of Mineral Resources, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, 100029, China; State Key Laboratory of Severe Weather (LASW) and Institute of Atmospheric Composition, Chinese Academy of Meteorological Sciences (CAMS), CMA, Beijing, 100081, China
推荐引用方式 GB/T 7714	Han X.,Zou X.,Song Z.,et al. Comparison of AVHRR aerosol optical depth production against CARSNET data in China[J],2019,218.
APA	Han X.,Zou X.,Song Z.,Fu D.,Xia X.,&Che H..(2019).Comparison of AVHRR aerosol optical depth production against CARSNET data in China.Atmospheric Research,218.
MLA	Han X.,et al."Comparison of AVHRR aerosol optical depth production against CARSNET data in China".Atmospheric Research 218(2019).