Model reduction for combined surface water/groundwater management formulations |
| |
Affiliation: | 1. Department of Chemical and Geological Sciences, University of Cagliari, Via Trentino 51, 09127 Cagliari, Italy;2. Desertification Research Centre (NRD), University of Sassari, Viale Italia, 07100 Sassari, Italy;3. Department of Physics and Earth Sciences, University of Parma, Parco Area delle Scienze 157a, 43124 Parma, Italy |
| |
Abstract: | A methodology for clustering stresses on a groundwater system based on similarity of hydrologic response produced by the stress is presented. The method is relevant to the computationally efficient calculation of response matrixes for use in groundwater management and other applications. The procedure is presented for the case in which the impact of pumping withdrawals on streamflow is of interest. The method uses cluster analysis on multiple, transient responses and a simplified response matrix for the modeled system. It is demonstrated on a field scale hypothetical management problem applied to a portion of the Republican River basin in the High Plains Aquifer of the United States with a multi-decadal planning horizon that maximizes well withdrawal while requiring that minimum streamflows be maintained. For this case, the clustering approach both reduces the computational requirement and helps to produce response coefficients with meaningful precision. The effectiveness of the model reduction is tested by comparing the optimal solutions produced by a full scale formulation and two reduced size formulations. |
| |
Keywords: | Streamflow Optimization Groundwater Simulation Response matrix Management |
本文献已被 ScienceDirect 等数据库收录! |
|