Water Planning Using an Expert GISby Daene C. McKinney, Univ of Texas, Austin, United States,
David R. Maidment, Univ of Texas, Austin, United States,
Mustafa Tanriverdi, Univ of Texas, Austin, United States,
Abstract: The development of an expert geographic information system (expert GIS) for long-term regional water resources planning is discussed. The system is comprised of an expert system to capture the expertise and technical considerations of water planning experts, and a geographic information system to store and analyze spatially distributed data for a region under study. The feasibility of this type of planning approach is being investigated using a case study of the capacity expansion of an existing water supply system with several water supply sources and demand centers. Water demand forecasts and supply data are used along with appropriate analysis routines, in the expert GIS which is being designed to follow the logic of current planning methods. Results are presented of applying the expert GIS to a simple example analyzing the existing water supply system for the San Antonio-Nueces and Nueces-Rio Grande Coastal basins. Given annual yields for water supply reservoirs, demand forecasts and institutional requirements, the expert GIS system calculates potential water supply deficits over a fifty year planning horizon and suggests cost effective alternatives for additional water supply development.
Subject Headings: Geographic information systems | Water supply systems | Information systems | Water demand | Expert systems | Case studies | Sea water | Rio Grande | San Antonio | Texas | United States | North America
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