(Abstract from Proceedings of the First Federal Interagency Hydrologic Modeling Conference, held in Las Vegas, NV, April 19-23, 1998, prepared by the Subcommittee on Hydrology of the Interagency Advisory Committee on Water Data)

A decision support system (DSS) has been developed for use on the San Juan River Basin in Arizone, Colorado, New Mexico, and Utah through a collaborative effort by the Bureau of Reclamation and the U.S. Geological Survey. The DSS includes a watershed modeling framework, a river and reservoir-operations modeling framework, and a relational data base that links the two modeling frameworks. The Modular Modeling System (MMS), which is an interface to a variety of modules for simulating water, energy, chemical, and biological processes, data-analysis tools, and model-building tools, comprises the watershed modeling framework. The RiverWare Systems Model, which is a general purpose, interactive model-building tool that integrates multipurpose reservoir-operations, including flood control, navigation, recreation, water supply, water quality, and power economics, comprises the river and reservoir-operations modeling framework. The DSS developed for the San Juan River Basin provides water managers a useful tool to manage, utilize, and schedule delivery of water resources.

(Abstract from Proceedings of the First Federal Interagency Hydrologic Modeling Conference, held in Las Vegas, NV, April 19-23, 1998, prepared by the Subcommittee on Hydrology of the Interagency Advisory Committee on Water Data)

The Watershed and River System Management Program (WARSMP) is a cooperative program between Department of the Interior agencies. The WARSMP is sponsored by the Water Resources Division of the U.S. Geological Survey (USGS) and the Science and Technology Research Program of the U.S. Bureau of Reclamation (USBR).

The purpose of WARSMP is to develop, test, and implement a framework for the management of water resources in the Reclamation Act States. The framework is a fully-integrated data-centered decision-support system of physical process models-- Modular Modeling System (MMS), resource-management models -- RiverWare, forecast models, data-management interfaces and graphical user interfaces. The MMS and RiverWare are linked through a data management system-- Hydrologic Database, as are a point and click GIS tool-box, queries and displays, and real-time data and processing.

Beginning in fiscal year 1997, the collaborative work of the program focused on the Yakima River Basin. The Yakima River Basin is representative of water-use and water-resource management in the West, and management of its waters is one of the most difficult tasks the USBR undertakes in the western United States. Program elements are being accomplished jointly by the USGS and USBR.

¹U.S. Geological Survey, Tacoma, WA

²U.S. Bureau of Reclamation, Yakima, WA

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