ABSTRACT
This chapter aims to test the hypothesis that a more accurate assessment of the curve number could be found by measuring multiple rainfall events using a recording flow meter and a rain gauge. Since it is relatively easy to accurately measure rainfall and flow, if a curve number can be found successfully in this manner, then soil conservation service (SCS) methods of calculating losses and generating a runoff hydrograph for a design storm would be improved. As described in the following section,, this set of runs resulted in values for these variables that were significantly different from storm to storm. The optimized runoff parameters showed a large variation in the SCS curve number, SCS lag time, and initial abstraction among the storms. Despite the varied results, we cannot conclude that a SCS curve number and SCS lag time. The SCS curve numbers and SCS lag times found by parameter calibration varied considerably from storm to storm.
