RGDSS_Task5-5_VerifyStateModEnhancements

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RGDSS Memorandum Final TO: Ray Bennett FROM: Jim Brannon, Ed SUBJECT: RGDSS Surface DATE: August 15, 2000 CC: Randy Seaholm Introduction Armbruster, Hydrosphere Water, Task 5.5 -Test StateMod Enhancements This memorandum represents delivery associated with Task 5, Run Test Applications and Document Enhancements to StateMod. The objective of this task is as follows: Review recent enhancements to the StateMod code. Run up to three test applications provided by the State designed to evaluate the performance of recent StateMod modifications. Application of StateMod to the Rio Grande Basin has required several modifications to the model code to accurately represent water use and water management practices. The modifications that were made during RGDSS efforts included the development of operating rules and/or configuration of input data to allow: All enhancements to the StateMod code were made by the State and executable codes were provided to the Surface Water Contractor for testing. Discussed below is a summary of the objectives of each model enhancement, the test applications and results, and comments concerning their use and functionality. Testing of each of the enhancements proceeded by first reviewing objectives with the State, and then implementing the new operations in a simple test network with relatively few nodes (demands, inflows, etc.). This facilitated a focus on performance of the new rule, and simplified the process of "tracking" model decisions concerning water allocation (amount diverted, stored, released, etc.). The new operations were then incorporated into the full-scale Rio Grande application of StateMod (Phase 1 Model), and results were closely was behaving as intended and those objectives were met. examined to ensure the model C:Acdss\TaskS-5.doc StateMod Enhancements August 15, 2000 -Page 1 of 8