TY - JOUR AU - Holzenthal, Elizabeth AU - Hill, David F. PY - 2018/12/30 Y2 - 2024/03/28 TI - NUMERICAL WAVE DISSIPATION OVER IDEALIZED MARSH PLATFORM JF - Coastal Engineering Proceedings JA - Int. Conf. Coastal. Eng. VL - 1 IS - 36 SE - Full Length Papers DO - 10.9753/icce.v36.papers.104 UR - https://icce-ojs-tamu.tdl.org/icce/article/view/8827 SP - papers.104 AB - 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. ER -