The Seattle Forecast Model: A Tool for Water Resources Management in the Seattle Area

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by Laura Mariño, Hydrocomp Inc, Redwood City, United States,

Document Type: Proceeding Paper

Part of: Hydraulic Engineering

Abstract: The Seattle Forecast Model, SEAFM, developed by Hydrocomp Inc. for the Seattle Water Department, is an interactive, graphic system for streamflow forecasting and reservoir analysis of the South Fork Tolt and the Cedar River basins in Washington. It was developed as a tool to aid in day to day operation and in long term operation planning of the reservoirs. The system has a historic data base with 63 years of observed meteorologic data, which is used in streamflow forecasts as well as in design-type analysis. Additionally, the system offers probabilistic analysis capabilities, to estimate probabilities of future reservoir states and water deficits, taking into account the uncertainty of future weather. Combined with interactive graphics, probability analysis helps the public understand the risk of future water shortages and the need for new facilities.

Subject Headings: Water resources | Forecasting | Resource management | Hydrologic models | Reservoirs | Decision support systems | Graphic methods | Streamflow | Water shortage | Probability | Interactive systems | Washington | North America | United States | Seattle

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