ICCE 2022

How to Cite

Watanabe, M., Chua, C. T., & Switzer, A. D. (2023). INVESTIGATING THE APPLICABILITY OF BOULDER/SAND SEDIMENT TRANSPORT MODELS FOR PORT RISK ASSESSMENT. Coastal Engineering Proceedings, (37), structures.69.


Tsunami-induced damage to urban infrastructure is poorly constrained globally since tsunami are infrequent events and therefore, there are limited damage observations. Tsunami-borne debris can contribute significantly to structural damage. This issue is particularly prevalent in port areas, where containers, mobile equipment, and concrete objects can impact on structures. The modeling of boulder and sand sediment transport by tsunami could be used to model the transport of a variety of urban structures. In this study, we introduce various sand and sediment transport models and examine their accuracies. We conclude by proposing a model that is valid for the modelling of urban structures. Some of the findings in this work have already been reported in Watanabe et al. (2021; 2022) and readers are encouraged to refer to these publications.


Roeber, Cheung, Kobayashi. (2010). Shock-capturing Boussinesq-type model for nearshore wave processes. Coastal Eng, 57, 407–423.

Roeber, Cheung. (2012). Boussinesq-type model for energetic breaking waves in fringing reef environments. Coastal Engm, 70, 1–20.

Takahashi, Shuto, Imamura, Asai, Modeling sediment transport due to tsunamis with exchange rate between bed load layer and suspended load layer. Proceedings of International Conference of Coastal Engineering, pp. 1508–1519, 2000.

Watanabe, Goto, Roeber, Imamura. (2021). Identification of coastal sand deposits from tsunamis and storm waves based on numerical computations. Journal of Geophysical Research - Earth Surface, 126, e2021JF006092.

Watanabe, Yoshii, Roeber, Goto, Imamura, (2022). Derivation, validation, and numerical implementation of a two-dimensional boulder transport formulation by coastal waves. Journal of Earthquake and Tsunami (in press).

Yoshii, Tanaka, Matsuyama. (2017). Tsunami deposits in a super-large wave flume. Marine Geology, 391, 98– 107.

Yoshii, Tanaka, Matsuyama. (2018). Tsunami inundation, sediment transport, and deposition process of tsunami deposits on coastal lowland inferred from the Tsunami Sand Transport Laboratory Experiment (TSTLE)” Mar. Geol. 400, 107-118.

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

Copyright (c) 2023 Masashi Watanabe, Constance Ting Chua, Adam D. Switzer