In this paper, the second part of a two-part series, the performance of a quasi-physically based rainfall-runoff model (QPBRRM) is evaluated for a set of 39 events from a small rangeland catchment (R-5) using a suite of alternative antecedent soil water content estimates. The data set used to glean antecedent conditions for the R-5 events, described in the companion paper contains 22 848 observations of soil water content made over a 4 year period. The performance of the model is improved by using estimates of antecedent soil water content that include consideration of spatial variability.
Journal articles from the Grassland Society of Southern Africa (GSSA) African Journal of Range and Forage Science as well as related articles and reports from throughout the southern African region.