Evaluation of uncertainties originating from the different modeling approaches applied to analyze regional groundwater flow in the Tono area of Japan
Qualitative evaluation of the effects of uncertainties originating from scenario development, modeling approaches, and parameter values is an important subject in the area of safety assessment for high-level nuclear waste disposal sites. In this study, regional-scale groundwater flow analyses for th...
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| Veröffentlicht in: | Journal of contaminant hydrology 2009-01, Vol.103 (3), p.168-181 |
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| container_title | Journal of contaminant hydrology |
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| creator | Ijiri, Yuji Saegusa, Hiromitsu Sawada, Atsushi Ono, Makoto Watanabe, Kunio Karasaki, Kenzi Doughty, Christine Shimo, Michito Fumimura, Kenichi |
| description | Qualitative evaluation of the effects of uncertainties originating from scenario development, modeling approaches, and parameter values is an important subject in the area of safety assessment for high-level nuclear waste disposal sites. In this study, regional-scale groundwater flow analyses for the Tono area, Japan were conducted using three continuous models designed to handle heterogeneous porous media. We evaluated the simulation results to quantitatively analyze uncertainties originating from modeling approaches. We found that porous media heterogeneity is the main factor which causes uncertainties. We also found that uncertainties originating from modeling approaches greatly depend on the types of hydrological structures and heterogeneity of hydraulic conductivity values in the domain assigned by modelers. Uncertainties originating from modeling approaches decrease as the amount of labor and time spent increase, and iterations between investigation and analyses increases. |
| doi_str_mv | 10.1016/j.jconhyd.2008.10.010 |
| format | Article |
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| fulltext | fulltext |
| identifier | ISSN: 0169-7722 |
| ispartof | Journal of contaminant hydrology, 2009-01, Vol.103 (3), p.168-181 |
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| language | eng |
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| source | MEDLINE; Access via ScienceDirect (Elsevier) |
| subjects | aquifers Computer Simulation Earth sciences Earth, ocean, space Exact sciences and technology Fresh Water - analysis groundwater flow Heterogeneity Hydrogeology hydrologic models Hydrology. Hydrogeology Japan mathematical models Modeling Models, Chemical porous media Pressure Probability regional groundwater flow simulation models Uncertainty Water Movements |
| title | Evaluation of uncertainties originating from the different modeling approaches applied to analyze regional groundwater flow in the Tono area of Japan |
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