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Modelling river-floodplain interaction during flood propagation

(2010) NATURAL HAZARDS. 55(1). p.111-121
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Abstract
The (re)integration of flood storage areas in the river system is considered and proved as an effective flood protection measure. By their (controlled) filling and emptying, inundation risks for downstream areas with higher vulnerability can be reduced. They have an influence not only on the flood level, but also on the residence time of the water in the river ecosystem, which is an important biological parameter. A good prediction of storage flow is therefore necessary in an integrated ecosystem model. In such a model, which is being developed by the universities of Ghent and Antwerp, hydraulic, biological and biogeochemical processes are coupled. In this paper, a one-dimensional hydrodynamic module of the integrated STRIVE (STReam RIVer Ecosystem) model, which is based on the de Saint–Venant equations and solved by the Preissmann scheme, is adapted to be able to include flow exchange with storage cells. This model is validated with experimental laboratory measurements on a small scale. The flow between the storage cells and the river is controlled by weirs (flooded river banks). Model simulations with STRIVE are also compared with HEC-RAS simulations. Good agreement between simulations of both models and between the STRIVE simulations and the measurements is found.
Keywords
Saint–Venant equations, Flood wave propagation, Storage cell, Flooding, Floodplains, 1D

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Citation

Please use this url to cite or link to this publication:

Chicago
Meire, Dieter, Liesbet De Doncker, Frederic Declercq, Kerst Buis, Peter Troch, and Ronny Verhoeven. 2010. “Modelling River-floodplain Interaction During Flood Propagation.” Natural Hazards 55 (1): 111–121.
APA
Meire, Dieter, De Doncker, L., Declercq, F., Buis, K., Troch, P., & Verhoeven, R. (2010). Modelling river-floodplain interaction during flood propagation. NATURAL HAZARDS, 55(1), 111–121.
Vancouver
1.
Meire D, De Doncker L, Declercq F, Buis K, Troch P, Verhoeven R. Modelling river-floodplain interaction during flood propagation. NATURAL HAZARDS. 2010;55(1):111–21.
MLA
Meire, Dieter, Liesbet De Doncker, Frederic Declercq, et al. “Modelling River-floodplain Interaction During Flood Propagation.” NATURAL HAZARDS 55.1 (2010): 111–121. Print.
@article{1092914,
  abstract     = {The (re)integration of flood storage areas in the river system is considered and proved as an effective flood protection measure. By their (controlled) filling and emptying, inundation risks for downstream areas with higher vulnerability can be reduced. They have an influence not only on the flood level, but also on the residence time of the water in the river ecosystem, which is an important biological parameter. A good prediction of storage flow is therefore necessary in an integrated ecosystem model. In such a model, which is being developed by the universities of Ghent and Antwerp, hydraulic, biological and biogeochemical processes are coupled. In this paper, a one-dimensional hydrodynamic module of the integrated STRIVE (STReam RIVer Ecosystem) model, which is based on the de Saint--Venant equations and solved by the Preissmann scheme, is adapted to be able to include flow exchange with storage cells. This model is validated with experimental laboratory measurements on a small scale. The flow between the storage cells and the river is controlled by weirs (flooded river banks). Model simulations with STRIVE are also compared with HEC-RAS simulations. Good agreement between simulations of both models and between the STRIVE simulations and the measurements is found.},
  author       = {Meire, Dieter and De Doncker, Liesbet and Declercq, Frederic and Buis, Kerst and Troch, Peter and Verhoeven, Ronny},
  issn         = {0921-030X},
  journal      = {NATURAL HAZARDS},
  keyword      = {Saint--Venant equations,Flood wave propagation,Storage cell,Flooding,Floodplains,1D},
  language     = {eng},
  number       = {1},
  pages        = {111--121},
  title        = {Modelling river-floodplain interaction during flood propagation},
  url          = {http://dx.doi.org/10.1007/s11069-010-9554-1},
  volume       = {55},
  year         = {2010},
}

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