Table 4: TSI and corresponding values of Chl-a, NO2-N, and SDD computed using Model C. It is noticeable that this model covers large ranges of NO2-N between 0.13 and 61.99  g L−1 and Chl-a between 1.00 and 322.18 mg m−3. Model C shows significant improvement over Model A and Model B.

TSISDD computed (cm)NO2-N computed ( g L−1)Chl-a computed (mg m−3)

0200
10128
20820.131.00
30521.136.19
40332.6914.31
50215.1427.01
60148.9746.89
70914.9678.01
80624.34126.70
90439.02202.91
100261.99322.18