Author(s): W. T. Sloan; J. Ewen; C. G. Kilsby; C. S. Fallows; P. E. O’Connell
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Abstract: Hydrologists are increasingly called upon to develop water balance models at large catchment to continental scales for water resource management and design purposes. This has been prompted by two main concerns. Firstly, the consensus in the scientific community of an impending change in the earth’s climate ( Houghton et al, 1996 ) has resulted in concerns about the impact this might have on water resources. Secondly, there is a need to assess the impact of more immediate anthropogenic induced change, such as changing landuse, or the growing demands on water resources imposed by increasing populations or industrial activity. Physically based distributed models have a structure which is consistent with predicting the hydrological regimes which would prevail under alternative land use and climatic regimes ( O’Connell, 1994 ). Their distributed structure can accommodate any prescribed pattern of landuse or physical structure, while their physical basis allows changes to be made to their parameters which reflect changes in these patterns
Year: 1997