The SEAMOD(SEAsonal MODel) is presented to analyze long-term inflow after construction of multipurpose reservoirs in this study. The SEAMOD configuration comprises of three storages; surface storage, unsaturated soil storage, and saturated soil storage. These storages are linked by five processes; surface runoff, infiltration, evapotranspiration, deep percolation, and groundwater flow. The main data for SEAMOD are precipitation, pan evaporation, and historical inflow data necessary for comparing with the simulated inflow data. The SEAMOD is applied to Andong, Hapcheon, Namgang, and Daecheong reservoirs in South Korea. And, the application of SEAMOD is divided into two parts; model calibration and model verification. In the process of a model calibration, seven parameters, two for surface runoff, two for infiltration, and one for each of the rest of the processes, are estimated by using the Rosenbrock Algorithm. In the process of a model verification, the SEAMOD is proved to be suitable and efficient by comparing historical hydrographs with verified hydrographs and by the results of objective functions. And, the MRAM(Multiple Regression Analysis Model), one of statistical models, is applied to compare with the SEAMOD. The results of SEAMOD are slightly better than those of MRAM in this study Therefore, it is possible to predict the inflow in the multipurpose reservoirs and can apply the SEAMOD to the ungaged watersheds which have hydrologic characteristics of homogeneity.
The long-term inflow analysis of multipurpose reservoirs by the SEAMOD
KSCE J Civ Eng
KSCE Journal of Civil Engineering ; 4 , 2 ; 91-101
2000-06-01
11 pages
Article (Journal)
Electronic Resource
English
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