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Proceedings Paper

Retrieval of water quality parameters by hyperspectral remote sensing in Lake TaiHu, China
Author(s): Dingtian Yang; Delu Pan; Xiaoyu Zhang; Xiaofeng Zhang; Xianqiang He; Shuqing Li
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Paper Abstract

Monitoring and restoration the water quality of lake need proper water quality parameters. Traditional measurement of water quality requiring laborious laboratory work is expensive and time consuming. Hyperspectral measurement can offer fast and easy way for estimating trophic status. Hyperspectral data on 7-8 March 2004 and water chemical data from 1997 to 2003 was used for retrieval of water quality parameters. The quantification of spectra with water quality parameters: chlorophyll a suspended solids total nitrogen(TN) total phosphorus(TP) chemical oxygen demand(COD) secchi depth(SD) were regressed. Results showed that the reflectance ratio of R702/R685 R6201R53 1 and R554/R675 had high correlations with the concentration of chlorophyll a suspended solids and total phosphorus respectively TN COD can be calculated from TP or Chi a for good relations between them SD is negatively correlated with suspended solids concentration total phosphorus (TP) (less than 0. 25 mg/L) linearly correlated with logarithm chlorophyll a concentration trophic status index (TSI) exponentially correlated with COD concentration.

Paper Details

Date Published: 12 May 2005
PDF: 9 pages
Proc. SPIE 5832, Optical Technologies for Atmospheric, Ocean, and Environmental Studies, (12 May 2005); doi: 10.1117/12.619673
Show Author Affiliations
Dingtian Yang, State Key Lab. of Ocean Dynamic Processes and Satellite Oceanography, SOA (China)
South China Sea Institute of Oceanography (China)
Shanghai Institute of Technology and Physics, CAS (China)
Delu Pan, State Key Lab. of Ocean Dynamic Processes and Satellite Oceanography, SOA (China)
Xiaoyu Zhang, State Key Lab. of Ocean Dynamic Processes and Satellite Oceanography, SOA (China)
Xiaofeng Zhang, State Key Lab. of Ocean Dynamic Processes and Satellite Oceanography, SOA (China)
Xianqiang He, State Key Lab. of Ocean Dynamic Processes and Satellite Oceanography, SOA (China)
Shuqing Li, State Key Lab. of Ocean Dynamic Processes and Satellite Oceanography, SOA (China)


Published in SPIE Proceedings Vol. 5832:
Optical Technologies for Atmospheric, Ocean, and Environmental Studies
Daren Lu; Gennadii G. Matvienko, Editor(s)

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