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Proceedings Paper

A technique for inversion of water quality parameters in the East Lake based on spectral reflectance measurement
Author(s): Deren Li; Shenghui Fang; Yuan Zhou
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Paper Abstract

The purpose of this paper is to clarify the components of surface water spectral energy as well as the factors that affect these components. Using proper spectral measurement technology and data retrieval algorithms, the spectral characteristic of varying water quality can be obtained, based on the fact that inland water spectral reflectance curves are generally different because of the differences caused by the organism, the eutrophication, and the suspended sediment content(SSC). A model was developed based on the ratio of the water chlorophyll a concentration to spectrum, with a normalized model taking care of simultaneously observed data concerning water quality parameters. The relationship between the pollution index of East Lake in Wuhan and spectral reflectance characteristic was also described through a mixed model concerning chlorophyll and sediment reflectance. The models were proved by some experiments, which facilitate the inversion of water pollution index based on remote sensor measurement.

Paper Details

Date Published: 3 November 2005
PDF: 7 pages
Proc. SPIE 6043, MIPPR 2005: SAR and Multispectral Image Processing, 60430M (3 November 2005); doi: 10.1117/12.654851
Show Author Affiliations
Deren Li, Wuhan Univ. (China)
Shenghui Fang, Wuhan Univ. (China)
Yuan Zhou, 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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