Towards revised physically based parameter estimation methods for the Pitman monthly rainfall-runoff model

• DOI: 10.4314/wsa.v34i2.183638
• Publication Date: 2019-07-29T06:36:15Z
• Authors: Evison Kapangaziwiri; Denis A. Hughes
• Keywords: Regionalisation; Infiltration (HVAC)

This paper presents a preliminary stage in the development of an alternative parameterisation procedure for Pitman monthly rainfall runoff model which enjoys popular use water resource assessment Southern Africa. The estimation procedures are based on premise that it is possible to physical basin properties directly quantification soil moisture accounting, runoff, and recharge infiltration parameters. results selected basins show revised parameters at least as good current regionalised sets or give satisfactory areas where no exist.Keywords: hydrological modelling, Africa, parameters, regionalisation, uncertainty