DOI: 10.1016/j.atmosenv.2017.11.048
Scopus记录号: 2-s2.0-85038843708
论文题名: Verification, improvement and application of aerosol optical depths in China Part 1: Inter-comparison of NPP-VIIRS and Aqua-MODIS
作者: Wei J ; , Sun L ; , Huang B ; , Bilal M ; , Zhang Z ; , Wang L
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2018
卷: 175 起始页码: 221
结束页码: 233
语种: 英语
英文关键词: AERONET
; AOD
; China
; MODIS
; VIIRS
Scopus关键词: Aerosols
; Atmospheric aerosols
; Infrared imaging
; Land use
; Optical properties
; Quality assurance
; Reflection
; River pollution
; Satellite imagery
; Supercomputers
; Thermography (imaging)
; AERONET
; China
; Environmental data records
; Moderate resolution imaging spectroradiometer
; MODIS
; Quality assurance process
; VIIRS
; Visible infrared imaging radiometer suites
; Radiometers
; accuracy assessment
; AERONET
; aerosol
; algorithm
; Aqua (satellite)
; data quality
; MODIS
; optical depth
; seasonal variation
; spatial resolution
; surface reflectance
; VIIRS
; accuracy
; aerosol
; aerosol optical depth
; air pollution
; algorithm
; Article
; China
; environmental parameters
; land use
; priority journal
; quality control
; seasonal variation
; sensitivity analysis
; China
Scopus学科分类: Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
英文摘要: The objective of this study is to evaluate typical aerosol optical depth (AOD) products in China, which experienced seriously increasing atmospheric particulate pollution. For this, the Aqua–MODerate resolution Imaging Spectroradiometer (MODIS) AOD products (MYD04) at 10 km spatial resolution and Visible Infrared Imaging Radiometer Suite (VIIRS) Environmental Data Record (EDR) AOD product at 6 km resolution for different Quality Flags (QF) are obtained for validation against AErosol RObotic NETwork (AERONET) AOD measurements during 2013–2016. Results show that VIIRS EDR similarly Dark Target (DT) and MODIS DT algorithms perform worse with only 45.36% and 45.59% of the retrievals (QF = 3) falling within the Expected Error (EE, ±(0.05 + 15%)) compared to the Deep Blue (DB) algorithm (69.25%, QF ≥ 2). The DT retrievals perform poorly over the Beijing-Tianjin-Hebei (BTH) and Yangtze-River-Delta (YRD) regions, which significantly overestimate the AOD observations, but the performance is better over the Pearl-River-Delta (PRD) region than DB retrievals, which seriously under-estimate the AOD loadings. It is not surprising that the DT algorithm performs better over vegetated areas, while the DB algorithm performs better over bright areas mainly depends on the accuracy of surface reflectance estimation over different land use types. In general, the sensitivity of aerosol to apparent reflectance reduces by about 34% with an increasing surface reflectance by 0.01. Moreover, VIIRS EDR and MODIS DT algorithms perform overall better in the winter as 64.53% and 72.22% of the retrievals are within the EE but with less retrievals. However, the DB algorithm performs worst (57.17%) in summer mainly affected by the vegetation growth but there are overall high accuracies with more than 62% of the collections falling within the EE in other three seasons. Results suggest that the quality assurance process can help improve the overall data quality for MYD04 DB retrievals, but it is not always true for VIIRS EDR and MYD04 DT AOD retrievals. © 2017 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/83095
Appears in Collections: 气候变化事实与影响
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作者单位: Institute of Space and Earth Information Science, Chinese University of Hong Kong, Shatin, NT, Hong Kong; College of Geomatics, Shandong University of Science and Technology, Qingdao, China; School of Marine Sciences, Nanjing University of Information Science and Technology, Nanjing, China; College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, China; School of Earth Sciences, China University of Geosciences, Wuhan, China
Recommended Citation:
Wei J,, Sun L,, Huang B,et al. Verification, improvement and application of aerosol optical depths in China Part 1: Inter-comparison of NPP-VIIRS and Aqua-MODIS[J]. Atmospheric Environment,2018-01-01,175