World Environmental and Water Resources Congress 2019
Modeling Wave Attenuation and Runup in Wetland and Vegetated Coast
Publication: World Environmental and Water Resources Congress 2019: Hydraulics, Waterways, and Water Distribution Systems Analysis
ABSTRACT
This paper presents numerical simulation studies on wave attenuation and setup/runup in wetland and vegetated by using a one-dimensional (1D) wave model (CSHORE) and a 2D wave spectral model (CCHE2D-Coast). Two wave breaking criteria implemented into the two models are examined by simulating wave heights and setup in a vegetated laboratory flume. Comparisons of wave heights show that the two breaker models perform similarly well in the cases with and without vegetation. The 2D spectral wave models enable to provide details of frequency distribution of wave energy and vegetation damping effect in each frequency of spectral waves. For simulation of setup/runup, vegetal drag forces based on linear and nonlinear wave theories are examined. By employing the 1D and 2D models, drag force formulations are investigated by computing the mean water levels (MWL) in the vegetated sloping beach. Intercomparison of numerical model results reveals that the linear drag force can provide a reasonable setup in a non-vegetation beach, but overestimates MWLs in vegetation zone while overpredict wave runup. On the other hand, the nonlinear vegetal drag force enables to reproduce the on-off shore profile of MWLs.
Get full access to this article
View all available purchase options and get full access to this chapter.
Acknowledgements
Funding supporting presentation of this study was provided by the U.S. Army Engineer Research and Development Center, Coastal and Hydraulics Laboratory, Coastal Inlets Research Program (CIRP). Permission was granted by Headquarters, U.S. Army Corps of Engineers, to publish this information.
References
Anderson, M.E., Smith, J.M. (2014). Wave attenuation by flexible, idealized salt marsh vegetation, Coastal Engineering, Volume 83, 2014, Pages 82-92,
Baron-Hyppolite, C., Lashley, C.H., Garzon, J., Miesse, T., Ferreira, C., Bricker, J.D. (2019). Comparison of Implicit and Explicit Vegetation Representations in SWAN Hindcasting Wave Dissipation by Coastal Wetlands in Chesapeake Bay. Geosciences, 9, 8.
Battjes, J. A., and Stive, M. J. F. (1985). Calibration and verification of a dissipation model for random breaking waves. J. Geophysical Research, 90(C5):9,159-9,167.
Casella, E., Rovere, A., Pedroncini, A., Mucerino, L., Casella, M., Cusati, L., Vacchi, M., Ferrari, M., Firpo, M. (2014). Study of wave runup using numerical models and low-altitude aerial photogrammetry: a tool for coastal management, Estuar. Coast. Shelf Sci., 149, pp. 160-167.
Dalrymple, R. A., Kirby, J. T., Hwang, P. A. (1984). Wave diffraction due to areas of energy dissipation. Journal of Waterway, Port, Coastal, and Ocean Engineering, 110, 67–79.
Ding, Y., Jia, Y., Zhang, Y.-X., and Kuiry, S. N. (2012). “Development of a Two-Dimensional Overland Wave Simulation Model”, Technical Report No. NCCHE-TR-2012-07, National Center for Computational Hydroscience and Engineering, The University of Mississippi, Oxford, MS, July, 2012, 81 p.
Ding, Y., Kuiry, S.N., Elgohry, M., Jia, Y., Altinakar, M.S., and Yeh, K.-C. (2013). Impact Assessment of Sea-Level Rise and Hazardous Storms on Coasts and Estuaries Using Integrated Processes Model, Ocean Engineering, Vol. 71, 1 October 2013, Pages 74–95.
Ding, Y., Zhang, Y.-X., and Jia, Y.-F. (2016a). CCHE2D-Coast: Model Description and Graphical User Interface, NCCHE Technical Report, The University of Mississippi, Oxford, MS, March, 2016, 88 p.
Ding, Y., Yeh, K.-C., Wei, S.-T. (2016b). Integrated coastal process modeling and impact assessment of flooding and sedimentation in coasts and estuaries, Coastal Engineering Proceedings 2016, pp1-14. https://doi.org/10.9753/icce.v35.management.18.
Goda, Y.(1975), Irregular wave deformation in the surf zone. Coastal Engineering in Japan, JSCE, Vol.18, 13-26
James, I.D. (1974). Non-linear waves in the nearshore region: Shoaling and set-up, Estuarine Coastal Mar. Sci., 2, 207-234.
Johnson, B., Kobayashi, N., Gravens, M., (2012). Cross-shore Numerical Model CSHORE For Waves, Currents, Sediment Transport, and Beach Profile Evolution. U.S. Army Corps of Engineers, Engineer Research and Development Center, Technical Report ERDC/CHL TR-12-22, Vicksburg, MS.
Kobayashi, N., Raichle, A.W., Asano, T. (1993). Wave attenuation by vegetation. Journal of Waterway, Port, Coastal, and Ocean Engineering, 119: 30–48.
Longuet-Higgins, M.S., Stewart, R.W. (1962). Radiation stress and mass transport in gravity waves with application to surf beat. Journal of Fluid Mechanics 13, 481– 504.
Longuet-Higgins, M.S., Stewart, R.W. (1963). A note on wave setup. Journal of Marine Research 21 (4), 4 –10.
Melby, J.A., Nadal-Caraballo, N.C., and Kobayashi, N. (2012). Wave runup prediction for flood mapping, Coast. Eng. Proc. 1, 1-14. https://doi.org/10.9753/icce.v33.management.79
Mendez, F.J., Losada, I.J., Losada, M.A., (1999). Hydrodynamics induced by wind waves in a vegetation field. J. Geophys. Res. 104 (C8), 18383– 18396.
Mendez, F. J. and Losada, I.J. (2004). An empirical model to estimate the propagation of random breaking and nonbreaking waves over vegetation fields, Coastal Engineering, 51, 103-118.
Ozeren, Y., Wren, D., and Wu, W. (2017). “Wave setup on vegetated beach: Laboratory experiments.” Coastal Eng. Proc. 1 (35): 4. https://doi.org/10.9753/icce.v35.currents.4.
Sakai, S., Hirayama, K., and Sakai, H. (1988). A new parameter for wave breaking with opposing current on sloping sea bed. In: Proceedings of the 21st Conference on Coastal Engineering, ASCE, Costa del Sol-Malaga, Spain, vol. 2, pp. 1035–1044.
Smith, J.M., Bryant, M.A., and Wamsley, T.V. (2016). Wetland buffers: Numerical modeling of wave dissipation by vegetation. Earth Surf. Process. Landf., 41, 847–854.
Svendsen, I.A. (1984). Wave heights and set-up in a surf zone. Coastal Engineering 8, 302–329.
Information & Authors
Information
Published In
World Environmental and Water Resources Congress 2019: Hydraulics, Waterways, and Water Distribution Systems Analysis
Pages: 426 - 436
Editors: Gregory F. Scott and William Hamilton, Ph.D.
ISBN (Online): 978-0-7844-8235-3
Copyright
© 2019 American Society of Civil Engineers.
History
Published online: May 16, 2019
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.