NUMERICAL WAVE DISSIPATION OVER IDEALIZED MARSH PLATFORM

  • Elizabeth Holzenthal
  • David F. Hill

Abstract

Combined tidal and wave events are simulated over an idealized marsh environment to quantifiably characterize the cross-shore attenuation of wave height as a function of bottom roughness and submergence depth. Dissipation calculated by the numerical model is compared with existing analytically derived parametric wave height decay models. We propose an alternative two-parameter dissipation model that better captures the limited decay of wave attenuation over a kilometer of propagation. The results suggest that cross-shore decay rates are sensitive to incident wave conditions as well as bottom roughness.

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Published
2018-12-30
How to Cite
Holzenthal, E., & Hill, D. F. (2018). NUMERICAL WAVE DISSIPATION OVER IDEALIZED MARSH PLATFORM. Coastal Engineering Proceedings, 1(36), papers.104. https://doi.org/10.9753/icce.v36.papers.104