Remote sensing retrieval of surface suspended sediment concentration in the Yellow River Estuary
Zhan Chao1,2,3; Yu Junbao1,2; Wang Qing2; Li Yunzhao2; Zhou Di2; Xing Qinghui1,3; Chu Xiaojing1,3; Yu Junbao(Chinese Acad Sci, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China)
2017-12-01
发表期刊CHINESE GEOGRAPHICAL SCIENCE
ISSN1002-0063
卷号27期号:6页码:934-947
产权排序第1完成单位
摘要Accurate assessment of surface suspended sediment concentration (SSSC) in estuary is essential to address several important issues: erosion, water pollution, human health risks, etc. In this study, an empirical cubic retrieval model was developed for the retrieval of SSSC from Yellow River Estuary. Based on sediments and seawater collected from the Yellow River and southeastern Laizhou Bay, SSSC conditions were reproduced in the laboratory at increasing concentrations within a range common to field observations. Continuous spectrum measurements of the various SSSCs ranging from 1 to 5700 mg/l were carried out using an AvaField-3 spectrometer. The results indicated the good correlation between water SSSC and spectral reflectance (R (rs)) was obtained in the spectral range of 726-900 nm. At SSSC greater than 2700 mg/L, the 740-900 nm spectral range was less susceptible to the effects of spectral reflectance saturation and more suitable for retrieval of high sediment concentrations. The best correlations were obtained for the reflectance ratio of 820 nm to 490 nm. Informed by the correlation between R (rs) and SSSC, a retrieval model was developed (R (2) = 0.992). The novel cubic model, which used the ratio of a near-infrared (NIR) band (740-900 nm) to a visible band (400-600 nm) as factors, provided robust quantification of high SSSC water samples. Two high SSSC centers, with an order of 10(3) mg/l, were found in the inversion results around the abandoned Diaokou River mouth, the present Yellow River mouth to the abandoned Qingshuigou River mouth. There was little sediment exchange between the two high SSSC centers due to the directions of the residual currents and vertical mixing.
关键词Surface Suspended Sediment Concentration (Sssc) Water Spectral Reflectance Cubic Model Quantitative Remote Sensing Inversion Yellow River Estuary
DOI10.1007/s11769-017-0921-7
项目资助者National Key R&D Program of China(2017YFC0505902) ; Project of the Cultivation Plan of Superior Discipline Talent Teams of Universities in Shandong Province ; National Natural Science Foundation of China(41471005, 41271016)
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收录类别SCI
关键词[WOS]SEASONAL VARIABILITY ; COASTAL WATERS ; SATELLITE DATA ; BOHAI SEA ; MODIS ; REFLECTANCE ; TRANSPORT ; LANDSAT ; IMAGERY ; TURBIDITY
文章类型Article
语种英语
WOS研究方向Environmental Sciences & Ecology
WOS记录号WOS:000415349200007
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文献类型期刊论文
条目标识符http://ir.yic.ac.cn/handle/133337/23472
专题中科院海岸带环境过程与生态修复重点实验室
通讯作者Yu Junbao; Yu Junbao(Chinese Acad Sci, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China)
作者单位1.Chinese Acad Sci, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China
2.Ludong Univ, Inst Coastal Ecol, Yantai 264025, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
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Zhan Chao,Yu Junbao,Wang Qing,et al. Remote sensing retrieval of surface suspended sediment concentration in the Yellow River Estuary[J]. CHINESE GEOGRAPHICAL SCIENCE,2017,27(6):934-947.
APA Zhan Chao.,Yu Junbao.,Wang Qing.,Li Yunzhao.,Zhou Di.,...&Yu Junbao.(2017).Remote sensing retrieval of surface suspended sediment concentration in the Yellow River Estuary.CHINESE GEOGRAPHICAL SCIENCE,27(6),934-947.
MLA Zhan Chao,et al."Remote sensing retrieval of surface suspended sediment concentration in the Yellow River Estuary".CHINESE GEOGRAPHICAL SCIENCE 27.6(2017):934-947.
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