Details
| Original language | English |
|---|---|
| Article number | 04021035 |
| Journal | Journal of Waterway, Port, Coastal and Ocean Engineering |
| Volume | 147 |
| Issue number | 6 |
| Early online date | 13 Aug 2021 |
| Publication status | Published - 1 Nov 2021 |
Abstract
Vegetation on foreshores in close vicinity to sea dikes may prove beneficial as regulating ecosystem service in the context of coastal defense, dike safety, and flood protection by reducing loads on these defense structures. Predominantly, a decrease in wave heights and bottom shear stresses is hypothesized, which calls for an inclusion in design procedures of coastal defense structures. In contrast to heterogeneous and variable salt marsh vegetation, this study uses surrogate vegetation models for systematic hydraulic experiments in a wave flume, without modeling specific plant species a priori. Froude-scale experiments are performed in order to investigate the effect of salt marsh vegetation on the wave transformation processes on the foreshore and wave run-up at sea dikes. The effect of plant and wave properties on wave transmission, energy dissipation, and wave run-up at a 1:6 sloped smooth dike are presented and discussed, focusing on the wave-vegetation-structure interaction. Vegetated foreshores can contribute to wave attenuation, where an increasing relative vegetation height hv/h results in decreased wave run-up on the dike by up to 16.5% at hv/h = 1.0.
ASJC Scopus subject areas
- Engineering(all)
- Civil and Structural Engineering
- Environmental Science(all)
- Water Science and Technology
- Engineering(all)
- Ocean Engineering
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In: Journal of Waterway, Port, Coastal and Ocean Engineering, Vol. 147, No. 6, 04021035, 01.11.2021.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Ecohydraulics of Surrogate Salt Marshes for Coastal Protection
T2 - Wave-Vegetation Interaction and Related Hydrodynamics on Vegetated Foreshores at Sea Dikes
AU - Keimer, Kara
AU - Schürenkamp, David
AU - Miescke, Fenia
AU - Kosmalla, Viktoria
AU - Lojek, Oliver
AU - Goseberg, Nils
N1 - Funding Information: The authors acknowledge the financial support by the Federal Ministry of Education and Research (BMBF) in the framework of the EcoDike project SP3.3 (Grant ID No. 03F0757B).
PY - 2021/11/1
Y1 - 2021/11/1
N2 - Vegetation on foreshores in close vicinity to sea dikes may prove beneficial as regulating ecosystem service in the context of coastal defense, dike safety, and flood protection by reducing loads on these defense structures. Predominantly, a decrease in wave heights and bottom shear stresses is hypothesized, which calls for an inclusion in design procedures of coastal defense structures. In contrast to heterogeneous and variable salt marsh vegetation, this study uses surrogate vegetation models for systematic hydraulic experiments in a wave flume, without modeling specific plant species a priori. Froude-scale experiments are performed in order to investigate the effect of salt marsh vegetation on the wave transformation processes on the foreshore and wave run-up at sea dikes. The effect of plant and wave properties on wave transmission, energy dissipation, and wave run-up at a 1:6 sloped smooth dike are presented and discussed, focusing on the wave-vegetation-structure interaction. Vegetated foreshores can contribute to wave attenuation, where an increasing relative vegetation height hv/h results in decreased wave run-up on the dike by up to 16.5% at hv/h = 1.0.
AB - Vegetation on foreshores in close vicinity to sea dikes may prove beneficial as regulating ecosystem service in the context of coastal defense, dike safety, and flood protection by reducing loads on these defense structures. Predominantly, a decrease in wave heights and bottom shear stresses is hypothesized, which calls for an inclusion in design procedures of coastal defense structures. In contrast to heterogeneous and variable salt marsh vegetation, this study uses surrogate vegetation models for systematic hydraulic experiments in a wave flume, without modeling specific plant species a priori. Froude-scale experiments are performed in order to investigate the effect of salt marsh vegetation on the wave transformation processes on the foreshore and wave run-up at sea dikes. The effect of plant and wave properties on wave transmission, energy dissipation, and wave run-up at a 1:6 sloped smooth dike are presented and discussed, focusing on the wave-vegetation-structure interaction. Vegetated foreshores can contribute to wave attenuation, where an increasing relative vegetation height hv/h results in decreased wave run-up on the dike by up to 16.5% at hv/h = 1.0.
UR - http://www.scopus.com/inward/record.url?scp=85111676788&partnerID=8YFLogxK
U2 - 10.1061/(ASCE)WW.1943-5460.0000667
DO - 10.1061/(ASCE)WW.1943-5460.0000667
M3 - Article
AN - SCOPUS:85111676788
VL - 147
JO - Journal of Waterway, Port, Coastal and Ocean Engineering
JF - Journal of Waterway, Port, Coastal and Ocean Engineering
SN - 0733-950X
IS - 6
M1 - 04021035
ER -