Computer-aided catchment-calibration model

Abstract

A new version of a computer-aided catchment model, KBSWMM (Version 2), is presented and discussed. The model essentially contains the following features: (i) preprocessors for the Runoff and Extran blocks of the widely used Storm Water Management Model, SWMM. These preprocessors are developed on X Window system, X11; (ii) flow-routing components of the Runoff and Extran blocks; (iii) a probablistic-based catchment calibration model; and (iv) a postprocessor to display the computational results in both text and graphical forms. The application of KBSWMM is demonstrated on a catchment in Singapore. The data entry of KBSWMM is very user-friendly, the built-in automatic catchment-calibration process requires minimal effort to achieve the optimum set of values for the calibration parameters, and the computational results are presented in self-explanatory graphical forms. © 1993.