Distributed model of large scale catchment hydrology

Neil R. Viney, Murugesu Sivapalan

Research output: Contribution to journalArticlepeer-review


The Large Scale Catchment Modelling project is a joint initiative of the Centre for Water Research, the Water Authority of Western Australia and Alcoa Australia. Its objective is to develop a water yield and salinity model capable of predicting the hydrologic response of large, heterogeneous catchments (up to 3000 km2) to land use changes (e.g., logging, mining) under various projected climate scenarios. The model is based on a distributed framework, with the fundamental building blocks being nested subcatchments of area 1-5 km2. The hydrosalinity of each subcatchment is modelled in terms of three interconnected conceptual stores of soil water and salt representing a perched near-stream aquifer, the permanent groundwater, and an intermediate unsaturated infiltration store. This paper presents applications of the model to several small to medium-sized catchments in southwestern Western Australia exhibiting complex histories of land use change.

Original languageEnglish (US)
Pages (from-to)417-422
Number of pages6
JournalNational Conference Publication - Institution of Engineers, Australia
Issue number94 /15
StatePublished - 1994
Externally publishedYes

ASJC Scopus subject areas

  • Engineering(all)


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