NUMERICAL MODELING OF TSUNAMI INUNDATION USING SUBGRID SCALE URBAN ROUGHNESS PARAMETERIZATION

Nobuki Fukui; Adi Prasetyo; Nobuhito Mori

doi:10.9753/icce.v36.papers.86

No. 36 (2018), Full Length Papers

No. 36 (2018)

NUMERICAL MODELING OF TSUNAMI INUNDATION USING SUBGRID SCALE URBAN ROUGHNESS PARAMETERIZATION

Full Length Papers

https://doi.org/10.9753/icce.v36.papers.86

Published 2018-12-30

Nobuki Fukui
Adi Prasetyo
Nobuhito Mori

Nobuki Fukui

Adi Prasetyo

Nobuhito Mori

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Fukui, N., Prasetyo, A., & Mori, N. (2018). NUMERICAL MODELING OF TSUNAMI INUNDATION USING SUBGRID SCALE URBAN ROUGHNESS PARAMETERIZATION. Coastal Engineering Proceedings, 1(36), papers.86. https://doi.org/10.9753/icce.v36.papers.86

Abstract

The importance of accurate numerical modeling of tsunami inundation in an urban area has clearly realized due to the devastating damage from 2011 Tohoku Earthquake Tsunami. Although, numerical inundation simulations using high resolution topography data (O(1m)), the medium resolution tsunami inundation model (O(10m)-O(100m)) needs and useful for tsunami hazard assessment. This study develops and validates a numerical model of tsunami inundation using upscaled urban roughness parameterization: Drag Force Model (DFM) which deals with the effect of structures as drag force acting on flow based on physical modeling. The validation of the DFM reveals that the DFM can express the effect of the flow direction and inundation ratio.

https://doi.org/10.9753/icce.v36.papers.86

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References

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Fukui, N., Mori, N., Goda, K. (2018), Application of numerical modeling of tsunami inundation using upscaled urban roughness parameterization - Case of 2011 Tohoku Earthquake Tsunami in Onagawa -, Journal of Japan Society of Civil Engineers Ser. B2 (Coastal Engineering), 74(2), I187-I192 (in Japanese)

Goda, K., Yasuda, T., Mori, N., Mai, P. M. (2015). Variability of tsunami inundation footprints considering stochastic scenarios based on a single rupture model: application to the 2011 Tohoku earthquake. Journal of Geophysical Research: Oceans, 120(6), 4552-4575.

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Prasetyo, A. (2017), Physical Modeling ad Numerical Analysis of Tsunami Inundation in a City Scale, Ph.D Thesis, Kyoto University.

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Authors retain copyright and grant the Proceedings right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this Proceedings.

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NUMERICAL MODELING OF TSUNAMI INUNDATION USING SUBGRID SCALE URBAN ROUGHNESS PARAMETERIZATION

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