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Pakistan Journal of Biological Sciences
Year: 2008  |  Volume: 11  |  Issue: 5  |  Page No.: 711 - 718

Estimation of Water Turbidity in Gorgan Bay, South-East of Caspian Sea by Using IRS-LISS-III Images

Hossein Aghighi, Abbas Alimohammadi, Mohammad Reza Saradjian and Davood Ashourloo    

Abstract: In this research, usefulness of IRS-LISS-III data of Gorgan Bay, South-east of Caspian Sea located in North of Iran for water turbidity mapping, has been tested. After correction of geometric and radiometric errors, the resulting radiance data were used for examination of correlations between the remotely sensed and in situ water turbidity data simultaneously measured by the Secchi depth approach. Results of this research showed good relations between the Secchi depth and spectral data. The fitted statistical model was very significant (R2 = 0.77) and test of the model performance by independent samples was encouraging. Because of the low costs encountered with acquisition and processing of remotely sensed data, further research in larger scales for the purpose of more precise test of the approach for water turbidity mapping and monitoring is recommended

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