Watercast:

a platform (developed from eWater's existing model 'E2') which allows you to model, forecast and manage the amounts of water and materials flowing across a catchment and into receiving waters. A key feature of Watercast is its flexibility: you construct a model for your catchment by selecting appropriate component models from available options, and linking them in the Watercast platform. The resulting integrated model can predict the flow and load of constituents (such as sediment or solutes) along your river network over time, working at a range of time scales and geographic scales.

Watercast continues to undergo further development and refining, and is being applied over the next 2-3 years in new application trials (road-tests) in practical situations in focus catchments, including catchments of the Great Barrier Reef, SE Queensland, Hawkesbury-Nepean, Yarra River, ACT, northern Victoria, and the Mt Lofty Ranges.

The tool is based on research findings and knowledge, and it has been designed to suit the needs of a range of eWater's water-industry partners.

Other catchment modelling tools available via the eWater Toolkit:

• BC2C for modelling salt and water yields from catchments;
• CLASS for modelling land-use effects at several scales;
• CMSS for predicting effects of nutrient management on water quality;
• FCFC for relating river flows to forest cover;
• IHACRES for relating streamflow to rainfall and evaporation;
• NSFM for forecasting streamflow;
• RRL, the rainfall runoff library - models runoff from rainfall and evaporation;
• SCL, the stochastic climate library - for generating climatic data;
• SEDNET for budgeting fluxes of sediment and nutrients;
• TREND for statistical testing of time-series data.

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