Water Planning Models in North Atlantic Study

Large-scale computerized water flow demand and supply models for the North Atlantic Regional Water Resources Study are described together with their use in the planning process. The demand model is a requirements projection model based on a regionalized input-output table, a regression projection equation, and water use coefficients. The supply model is a mathematical programming model that minimizes costs of supply subject to constraints. The models were used in a multiobjective planning context in which efforts were made to incorporate model results into the planning process. The use of the models in this context had positive effects on the planning process.