Development and implementation of viable operating rules are among the most important aspects of decisions made in reservoir system management. Hydrologic Engineering Center's Prescriptive Reservoir Model (HEC-PRM) is used to suggest reservoir system operations optimized explicitly for quantitative statements of system operating objectives. Previous studies tested the feasibility of applying HEC-PRM to aid the System Operation Review and analyzed and compared three system operation alternatives. This study improved the model1s representation of the Columbia River system, analyzed and developed strategic operating rules for the system, and explored the application of HEC-PRM to seasonal operations.

This paper summarizes the Interim findings of the second phase of the HEC-PRM Columbia River application. The HEC-PRM represents the Columbia system as a link-node network and uses network-flow programming to optimize, in time and space, flow and storage in the system. The representation of operational goals in HEC-PRM is accomplished through flow, storage, and energy economic penalty functions. Operational purposes represented by penalty functions included hydropower, water supply, flood control, navigation, recreation, and anadromous fish. The application was based on fifty year period-of-record with a monthly time interval. The HEC data storage system, HEC-DSS, was utilized extensively for data management and analysis of results. System analysis, Reservoir modeling, Operations research, Network-flow programming, Operation studies, Reservoir operating rules.

Water scarcity is an increasing problem in many parts of the world, yet conventional supply-side economics and management are insufficient to deal with it. One of the key water management options for water demand is water trading. This book explores the role of water trading, as an instrument of integrated water resources management.