Large Sample Basin Experiments for Hydrological Model Parameterization: Results of the Model Parameter Experiment–MOPEX. IAHS Publ. 307, 2006, 126–132.
A review of Australian model parameterization
studies using large basin samples
WALTER BOUGHTON
Griffith University, 11 Preston Place, Brookfield 4069, Queensland, Australia
Abstract The five major studies in Australia, using 168, 195, 221, 221 and 175 data sets, are described. The basins range in size from 1 to 8400 km2 with an average of a few hundred km2. The paper describes the models, data sets, methods used and results. The most promising approach shifts the problem of estimating model parameter values to that of estimating average annual runoff. Given an estimate of average annual runoff and daily rainfall and evaporation data, the AWBM rainfall–runoff model self calibrates and calculates daily runoff for the period of input data. Relationships of average annual runoff to average annual rainfall and evaporation have been established for the whole of Australia and results from these relationships with the AWBM are presented. The main problem in Australia is the estimation of areal rainfall for input to the models.
Key words AWBM; hydrological modelling; rainfall–runoff
models; runoff; ungauged catchments