DOI: 10.1016/j.atmosres.2018.11.005
Scopus记录号: 2-s2.0-85056830383
论文题名: Comparison of AVHRR aerosol optical depth production against CARSNET data in China
作者: Han X. ; Zou X. ; Song Z. ; Fu D. ; Xia X. ; Che H.
刊名: Atmospheric Research
ISSN: 1698095
出版年: 2019
卷: 218 起始页码: 12
结束页码: 24
语种: 英语
英文关键词: Aerosol assumptions
; Aerosol optical depth
; AVHRR
; CARSNET
; Surface reflectance
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
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. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/122357
Appears in Collections: 气候变化事实与影响
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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
Recommended Citation:
Han X.,Zou X.,Song Z.,et al. Comparison of AVHRR aerosol optical depth production against CARSNET data in China[J]. Atmospheric Research,2019-01-01,218