SciELO - Scientific Electronic Library Online

 
vol.34 issue2Inter-basin water transfer effects on the invertebrates of the Mvuzane River: A test of the SASS rapid biomonitoring protocol to assess the impact of flow modificationOptimisation of Bacillus thuringiensis var. israelensis (Vectobac®) applications for the blackfly control programme on the Orange River, South Africa author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Water SA

On-line version ISSN 0378-4738

Abstract

KAPANGAZIWIRI, Evison  and  HUGHES, Denis A. Towards revised physically based parameter estimation methods for the Pitman monthly rainfall-runoff model. Water SA [online]. 2008, vol.34, n.2, pp. 183-192. ISSN 0378-4738.

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

Keywords : hydrological modelling; Southern Africa; parameters; regionalisation; uncertainty.

        · text in English     · English ( pdf )