On the Modeling of Bank Storage in a Groundwater Model: The April, 1983, Flood Event in the Neuwieder Becken (Middle Rhine)
| Autor: | Holger Schüttrumpf, Benjamin Sinaba, Matthias Jansen, Bernhard Becker |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
Hydrology
lcsh:TD201-500 subsurface flood lcsh:Hydraulic engineering Hardware_MEMORYSTRUCTURES surface subsurface water interaction Flood myth Geography Planning and Development Aquatic Science Biochemistry ddc:690 lcsh:Water supply for domestic and industrial purposes lcsh:TC1-978 Soil properties Boundary value problem groundwater flooding bank storage Layering Leakage (economics) Groundwater model Groundwater Geology Water Science and Technology |
| Zdroj: | Water Volume 7 Issue 3 Pages 1173-1201 Water, Vol 7, Iss 3, Pp 1173-1201 (2015) Water 7(3), 1173-1201 (2015). doi:10.3390/w7031173 special issue: "Special Issue "Surface Water Groundwater Interactions: From Theory to Practice" / Special Issue Editors: Prof. Dr. Philip Brunner, Guest Editor; Dr. Jan Fleckenstein, Guest Editor" |
| ISSN: | 2073-4441 |
| DOI: | 10.3390/w7031173 |
| Popis: | For predictive numerical simulations of subsurface floods (groundwater head rise due to high water in a contiguous river), it is important to know how to represent the bank storage process in a numerical groundwater model. Whilst leakage approaches are frequently used for modeling bank storage, another option is the application of a head boundary condition. In order to get a better understanding of the bank storage process, we analyze the bank storage event in the Neuwieder Becken (Middle Rhine) in April 1983, which has been reported by Ubell (1987). We found the leakage function to be nonlinear and hysteretic. The evaluation of different model variants for Ubell’s bank storage event shows that both a head boundary condition and a leakage boundary condition are appropriate modeling approaches. For practical reasons, the leakage boundary condition is preferred. A linear leakage function represents the bank storage process for the analyzed event sufficiently. A hysteretic course of the leakage function can be achieved in a three-dimensional groundwater model by layering the hydraulic soil properties in the vicinity of the bank. |
| Databáze: | OpenAIRE |
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