Quantitative modeling of suspended sediment in middle Changjiang River from modis

被引：0
作者：
Can-de Liu
Bao-yin He
Mao-tian Li
Xian-you Ren
机构：
[1] Chinese Academy of Sciences,Institute of Geodesy & Geophysics
[2] Graduate School of Chinese Academy of Sciences,Laboratory of Geographic Information Science
[3] East China Normal University,undefined
来源：
Chinese Geographical Science | 2006年 / 16卷
关键词：
MODIS; suspended sediment; empirical model; middle Changjiang River; TP79; P737.14;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
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 (R1−R2)/(R1+R2) retrieved from MODIS 250m image data (R2=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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页码：79 / 82
页数：3
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