Abstract
Remote sensing techniques have been widely used to observe bodies of water. Among satellite sensors commonly used for water quality studies, the Moderate-resolution Imaging Spectroradiometer (MODIS) has potential in water quality monitoring, because of its moderate spatial resolution and high temporal resolution. In this paper, the utility of MODIS data for suspended sediment monitoring in the middle Changjiang (Yangtze) River is studied. It is concluded that suspended sediment concentration correlates well with reflectance values (R 1−R 2)/(R 1+R 2) retrieved from MODIS 250m image data (R 2=0.72, n=41). Based on this correlation, we obtain the empirical model of suspended sediment concentration in the middle Changjiang River from MODIS. It is shown that it is useful for MODIS data to monitor this parameter of water quality.
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Foundation item: Under the auspices of Post Doctoral Scientific Fund of China (No.2003034495), Knowledge Innovation Program of Chinese Academy of Sciences (No. KZCX1-SW-12-1), and Knowledge Innovation Program of Institute of Geodesy and Geophysics of Chinese Academy of Sciences (No. KSCX2-SW-110)
Biography: LIU Can-de (1980-), male, a native of Tai’an of Shangdong Province, master, specialized in application of RS and GIS. E-mail: candel@asch.whigg.ac.cn
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Liu, Cd., He, By., Li, Mt. et al. Quantitative modeling of suspended sediment in middle Changjiang River from modis. Chin. Geograph.Sc. 16, 79–82 (2006). https://doi.org/10.1007/s11769-006-0026-1
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DOI: https://doi.org/10.1007/s11769-006-0026-1