Document Type

Report

Publisher

International Irrigation Center

Publication Date

1992

Abstract

Generally, the embedding technique for optimizing groundwater management has been limited to small scale or steady-state groundwater flow management cases. The embedding approach causes sparse, highly structured constraint matrices which have been sometimes difficult to solve. Embedding applications have been limited by lack of: optimization algorithms able to easily address such matrices for large scale problems, and efficient methods for addressing common nonlinearities and converging to a solution. Computer software, USUEM, addresses these issues by: creation of alternative linear, nonlinear, combined and partitioned formulations of the same problem, implemention of an efficient cycling procedure, and good selection of optimization algorithm and computational parameters. The application of the methodology is demonstrated for a large scale study area (Salt Lake Valley) where groundwater quantity and quality management is needed and where the proportion of pumping cells is great.

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