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The purpose of the research was to investigate the effect of suspended sediment concentration on remote sensing reflectance and depth of light penetration in the turbid water. Turbidity is not a uniform parameter, either spatially or temporally. Laboratory based experiments were performed to establish relationship between the hyperspectral remote sensing reflectance signal and suspended sediment concentration (SSC). The indoor spectral reflectance was measured 1m above the water surface using both hyperspectral Field SpecPro FR Spectroradiometer and quantum sensor. The experiments were performed in the electromagnetic spectrum region of 400 nm to 900 nm keeping all environmental parameters constant. A relationship for PAR (Photosynthetically Active Radiation) transmittance, reflectance and absorption with varying levels of SSC was illustrated. The reflectance and diffuse attenuation coefficient increase with the increase in SSC. The first derivative of peak reflectance, at 827 nm, correlated strongly with SSC than the peak reflectance itself. Model was developed to quantify the suspended sediment concentration.

EFFECT OF SUSPENDED SEDIMENT CONCENTRATION ON REMOTE SENSING REFLECTANCE AND LIGHT PENETATION DEPTH