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Proceedings Paper

Estimating suspended sediment concentration in Yangtze River from Landsat-TM image
Author(s): Tao Chen; Pingxiang Li; Liangpei Zhang; Lite Shi
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Paper Abstract

Traditionally, suspended sediment concentration (S) has been measured by time-consuming and costly boat surveys which allow the accurate measurement of S for single points in space and time. Remote sensing from spaceborne sensors has proved to be a useful method to such surveys as it provides and instantaneous and synoptic view of sediments that would otherwise be unavailable. The key to success of remote sensing in such a role is to get the suitable relationship between S and remotely sensed spectral radiance (L). In this research, an estimation model of suspended sediments in Yangtze River is built by using spectral analysis based on some correlative researches. Firstly, we attempt to fit the relation curve between suspended sediments concentration and reflectance of water by using three widely used classical models. Land spectral experiment, which simulates the condition of Yangtze River, is carried out to estimate the parameters of three models. And then, we analyze the Landsat TM data by using the models and finally compare the results with the hydrological data for error quantitative analysis.

Paper Details

Date Published: 3 November 2005
PDF: 6 pages
Proc. SPIE 6043, MIPPR 2005: SAR and Multispectral Image Processing, 604319 (3 November 2005); doi: 10.1117/12.654892
Show Author Affiliations
Tao Chen, Wuhan Univ. (China)
Pingxiang Li, Wuhan Univ. (China)
Liangpei Zhang, Wuhan Univ. (China)
Lite Shi, Wuhan Univ. (China)

Published in SPIE Proceedings Vol. 6043:
MIPPR 2005: SAR and Multispectral Image Processing
Liangpei Zhang; Jianqing Zhang; Mingsheng Liao, Editor(s)

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