Streamflow Prediction and Allocation Model in Texas

by Richard E. Brown, Texas Water Commission, United States,
Norman D. Johns, Texas Water Commission, United States,

Document Type: Proceeding Paper

Part of: Optimizing the Resources for Water Management


The State of Texas' Water Rights Adjudication Act of 1967 provided for the creation of regional watermasters to divide the water of state streams in accordance with the adjudicated water rights. A computer model has been developed to assist in the efficient allocation of this water. The first step is to predict the daily streamflows expected at all diversion points in a river basin for the next 7 to 10 days. These forecasts are made by applying autoregressive time-series equations to daily streamflow values retrieved via satellite from USGS streamflow gages. Next, the model performs an allocation of these streamflows to the valid water right holders which have declared an intent to divert during the forecast period. This paper presents an outline of the computer model and how it will be used by the watermasters.

Subject Headings: Streamflow | Computer models | Water rights | Water resources | Water management | Computer aided operations | Autoregressive models | Forecasting | Texas | United States

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