Tables 3 and 4 show the averaged results for DO, BOD, NH3–N,
SS, and calculated RPI values for different water quality sampling
Fig. 3. The simulation process using RPI and WASP.
Y.C. Lai et al. / Journal of Hydrology 478 (2013) 89–101 93
and hydrology measurement events in the dry (from November to
April) and wet (from May to October) seasons, respectively, during
the investigation period from 2009 to 2011. Results of the hydrology
investigation show that the averaged flow rates at all monitoring
stations were significantly increased in wet seasons (up to
53.4 m3
/s in Kaoping River). Results show that the averaged
NH3–N concentrations varied from 0.04 to 0.11 mg/L in three
reaches in dry seasons. However, the averaged NH3–N concentrations
varied from 0.19 to 0.28 mg/L in three reaches in wet seasons.