Tian, XP; Gao, ZQ
发表期刊ATMOSPHERE
2019-09
卷号10期号:9页码:548
关键词MODIS aerosol productCollection 6.1heavy aerosol loadingAERONET
研究领域Meteorology & Atmospheric Sciences
DOI10.3390/atmos10090548
产权排序[Tian, Xinpeng; Gao, Zhiqiang] Chinese Acad Sci, CAS Key Lab Coastal Environm Proc & Ecol Remediat, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China; [Tian, Xinpeng; Gao, Zhiqiang] Chinese Acad Sci, Shandong Key Lab Coastal Environm Proc, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China
通讯作者Tian, Xinpeng(xptian@yic.ac.cn)
作者部门海岸带信息集成与综合管理实验室
英文摘要The aim of this study is to evaluate the accuracy of MODerate resolution Imaging Spectroradiometer (MODIS) aerosol optical depth (AOD) products over heavy aerosol loading areas. For this analysis, the Terra-MODIS Collection 6.1 (C6.1) Dark Target (DT), Deep Blue (DB) and the combined DT/DB AOD products for the years 2000-2016 are used. These products are validated using AErosol RObotic NETwork (AERONET) data from twenty-three ground sites situated in high aerosol loading areas and with available measurements at least 500 days. The results show that the numbers of collections (N) of DB and DT/DB retrievals were much higher than that of DT, which was mainly caused by unavailable retrieval of DT in bright reflecting surface and heavy pollution conditions. The percentage falling within the expected error (PWE) of the DT retrievals (45.6%) is lower than that for the DB (53.4%) and DT/DB (53.1%) retrievals. The DB retrievals have 5.3% less average overestimation, and 25.7% higher match ratio than DT/DB retrievals. It is found that the current merged aerosol algorithm will miss some cases if it is determined only on the basis of normalized difference vegetation index. As the AOD increases, the value of PWE of the three products decreases significantly; the undervaluation is suppressed, and the overestimation is aggravated. The retrieval accuracy shows distinct seasonality: the PWE is largest in autumn or winter, and smallest in summer. The most severe overestimation and underestimation occurred in the summer. Moreover, the DT, DB and DT/DB products over different land cover types still exhibit obvious deviations. In urban areas, the PWE of DB product (52.6%) is higher than for the DT/DB (46.3%) and DT (25.2%) products. The DT retrievals perform poorly over the barren or sparsely vegetated area (N = 52). However, the performance of three products is similar over vegetated area. On the whole, the DB product performs better than the DT product over the heavy aerosol loading area.
文章类型Article
资助机构National Natural Science Foundation of China (NSFC)National Natural Science Foundation of China [41876107]; NSFC-Shandong joint fund project [U1706219]; Basic Special Program of Ministry of Science and Technology [2014FY210600]; Aoshan Science and Technology Innovation Program of Qingdao National Laboratory for Marine Science and Technology [2016ASKJ02]
收录类别SCI
语种英语
关键词[WOS]OPTICAL DEPTH; RETRIEVAL ALGORITHMS; AIR-POLLUTION; CLIMATE; AERONET; LAND; ATMOSPHERE
研究领域[WOS]Meteorology & Atmospheric Sciences
WOS记录号WOS:000489177300070
引用统计被引频次：10[WOS][WOS记录][WOS相关记录]
文献类型期刊论文
条目标识符http://ir.yic.ac.cnhttp://ir.yic.ac.cn/handle/133337/24861
专题中科院海岸带环境过程与生态修复重点实验室_海岸带信息集成与战略规划研究中心
中科院海岸带环境过程与生态修复重点实验室
作者单位1.Chinese Acad Sci, CAS Key Lab Coastal Environm Proc & Ecol Remediat, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China;
2.Chinese Acad Sci, Shandong Key Lab Coastal Environm Proc, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China
推荐引用方式
GB/T 7714Tian, XP,Gao, ZQ. Validation and Accuracy Assessment of MODIS C6.1 Aerosol Products over the Heavy Aerosol Loading Area[J]. ATMOSPHERE,2019,10(9):548.
APATian, XP,&Gao, ZQ.(2019).Validation and Accuracy Assessment of MODIS C6.1 Aerosol Products over the Heavy Aerosol Loading Area.ATMOSPHERE,10(9),548.
MLATian, XP,et al."Validation and Accuracy Assessment of MODIS C6.1 Aerosol Products over the Heavy Aerosol Loading Area".ATMOSPHERE 10.9(2019):548.
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