Table 3: TSI and corresponding values of Chl-a, NO2-N, and SDD computed using Model B. It is noticeable that this model gives negative numbers (shown as “—” dash), which implies the nonapplicability of this model for NO2-N concentrations less than 0.13  g L−1. Model B shows slight improvement over Model A; however, the values of computed indices are underestimated in this model.

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

02000.32
101280.65
20821.15
30521.94
40333.17
50210.135.11
60140.708.13
7091.2812.86
8061.8620.27
9042.4431.86
10023.0150.00