Adding Rigor to the CALFED Concept of Adaptive Management:
Use of Decision Analysis to Design Adaptive Flow Management Experiments in Clear Creek, Northern California

US Department of Interior, Bureau of Reclamation

The CALFED Ecosystem Restoration Program (ERP) has adopted an ecosystem-based management approach, with an emphasis on adaptive management, for restoring the Bay-Delta ecosystem. In this project, ESSA is developing a quantitative tool that uses decision analysis and a computer simulation model to evaluate alternative flow management experiments for Clear Creek. The overall objective of the project is to provide CALFED with a quantitatively rigorous design of a management experiment for a problem of immediate concern, to serve as a useful example of the application of decision analysis, modelling and adaptive management.

The project focuses on the design and simulation of flow releases from Whiskeytown Reservoir to Clear Creek, and evaluation of trade-offs inherent in different flow release policies for all interests (e.g., fish, wildlife, riparian, power generation, temperature control, and recreation). Development of this kind of model requires the support and participation of local experts in biology, geomorphology, hydrology, and economics that are familiar with the issues specific to flow management on Clear Creek. Part of ESSA's task in developing the model, therefore, is to work closely with these experts to ensure that the model adequately captures all relevant issues. To this end, ESSA is also responsible for facilitating technical meetings and formal workshops to engage local experts and solicit their inputs to the model.

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