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LANDSLIDE-GENERATED TSUNAMIS: A NUMERICAL ANALYSIS OF THE NEAR-FIELD. (2020). Coastal Engineering Proceedings, 36v, currents.8.


There are coastal areas which are particularly prone to landslide-generated tsunami risk. The destructive effects caused by the impulsive waves, generated by landslide sources, can be strongly magnified by the characteristics of the so-called "confined geometries" (e.g. bays, reservoirs, lakes, volcanic islands, fjords, etc.). Complicated physical phenomena (e.g. trapping mechanisms, edge waves, wave runup, etc.) take place as a consequence of the interaction between the generated waves and the local bathymetry and control the tsunami propagation and interaction with the coast, often causing devastating consequences. Many past events of landslide-generated tsunamis testify this reality (e.g. Lituya Bay, Alaska, Fritz et al., 2009; Stromboli Island, Italy, Tinti et al., 2005; Anak Krakatau, Indonesia, Grilli et al., 2019). To reduce and mitigate the tsunami risk a proper comprehension, and modelling, of such complicated phenomena is crucial. Landslide-generated tsunamis have been largely studied by exploiting experimental, analytical and numerical modelling. Experimental tests are often time and money consuming, especially if 3D models are considered. Large facilities, as well as complicated experimental configurations and sophisticated measurement systems (e.g. Romano et al. 2016), are often needed. Furthermore, not always it is possible to explore in detail the influence of all the involved parameters, in particular those related to the landslide triggering mechanisms and rheology, that have a considerable influence on the wave characteristics in the so-called "near-field". To this end, numerical modelling can provide a valuable assistance. The new tools offered by the Computational Fluid Dynamics (CFD) methods represent a valuable means for shedding light on the unresolved aspects. In particular, the 3D CFD modelling techniques appear to be crucial as far as the tsunami characteristics in the near-field, induced by landslide sources, are concerned. Indeed, the accurate reproduction of the energy transfer between the landslide and the water is essential to model the tsunami generation and propagation mechanisms, allowing to explore a large variety of landslide triggering mechanisms and rheology. In this paper we present a numerical study of the landslide-generated tsunamis in the near-field.

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Abadie, S., Harris, J., Grilli, S., & Fabre, R. (2012). Numerical modeling of tsunami waves generated by the flank collapse of the Cumbre Vieja Volcano (La Palma, Canary Islands): tsunami source and near-field effects. Journal of Geophysical Research: Oceans, 117 (C5).

Antonini, A., Lamberti, A., Archetti, R., & Miquel, A. M. (2016). Dynamic overset rans simulation of a wave-driven device for the oxygenation of deep layers. Ocean Engineering, 127 , 335-348.

Bellotti, G., Cecioni, C., & De Girolamo, P. (2008). Simulation of small-amplitude frequency-dispersive transient waves by means of the mild-slope equation. Coastal Engineering, 55 (6), 447-458.

Bellotti, G., & Romano, A. (2017). Wavenumber-frequency analysis of landslide-generated tsunamis at a conical island. Part II: EOF and modal analysis. Coastal Engineering, 128 , 84-91.

Cecioni, C., Romano, A., Bellotti, G., Di Risio, M., & De Girolamo, P. (2011). Real-time inversion of tsunamis generated by landslides. Natural Hazards & Earth System Sciences, 11 (9).

Chen, F., Heller, V., & Briganti, R. (2020). Numerical modelling of tsunamis generated by iceberg calving validated with large-scale laboratory experiments. Advances in Water Resources, 103647.

Chen, H., Qian, L., Ma, Z., Bai, W., Li, Y., Causon, D., & Mingham, C. (2019). Application of an overset mesh based numerical wave tank for modelling realistic free-surface hydrodynamic problems. Ocean Engineering, 176 , 97-117.

Clous, L., & Abadie, S. (2019). Simulation of energy transfers in waves generated by granular slides. Landslides, 1-17.

De Girolamo, P., Di Risio, M., Romano, A., & Molfetta, M. (2014). Landslide tsunami: physical modeling for the implementation of tsunami early warning systems in the mediterranean sea. Procedia Engineering, 70 , 429-438.

del Jesus, M., Lara, J. L., & Losada, I. J. (2012). Three-dimensional interaction of waves and porous coastal structures: Part I: Numerical model formulation. Coastal Engineering, 64 , 57-72.

Di Paolo, B., Lara, J. L., Barajas, G., Paci, A., & Losada, I. J. (2018). Numerical analysis of wave and current interaction with moored floating bodies using overset method. In Asme 2018 37th International Conference on Ocean, O shore and Arctic Engineering (pp. V002T08A037-V002T08A037).

Di Risio, M., Bellotti, G., Panizzo, A., & De Girolamo, P. (2009a, MAY-JUN). Three-dimensional experiments on landslide generated waves at a sloping coast. Coastal Engineering, 56 (5-6), 659-671. doi: f10.1016/j.coastaleng.2009.01.009g

Di Risio, M., De Girolamo, P., Bellotti, G., Panizzo, A., Aristodemo, F., Molfetta, M. G., & Petrillo, A. F. (2009b, JAN 20). Landslide-generated tsunamis runup at the coast of a conical island: New physical model experiments. Journal of Geophysical Research-Oceans, 114 . doi: f10.1029/2008JC004858g

Enet, F., & Grilli, S. T. (2007, NOV-DEC). Experimental study of tsunami generation by three-dimensional rigid underwater landslides. Journal Of Waterway Port Coastal And Ocean Engineering-ASCE, 133 (6), 442-454. doi: 10.1061/ (ASCE)0733-950X(2007)133:6(442)

Fritz, H. M., Mohammed, F., & Yoo, J. (2009). Lituya Bay landslide impact generated mega-tsunami 50th anniversary. Pure and Applied Geophysics, 166 (1-2), 153-175.

Grilli, S. T., Shelby, M., Kimmoun, O., Dupont, G., Nicolsky, D., Ma, G., ... Shi, F. (2017). Modeling coastal tsunami hazard from submarine mass failures: e ect of slide rheology, experimental validation, and case studies o the us east coast. Natural Hazards, 86 (1), 353-391.

Heller, V., & Spinneken, J. (2015). On the e ect of the water body geometry on landslide-tsunamis: Physical insight from laboratory tests and 2D to 3D wave parameter transformation. Coast. Eng., 104, 113-134.

Higuera, P., Lara, J. L., & Losada, I. J. (2014a). Three-dimensional interaction of waves and porous coastal structures using OpenFOAM®. Part I: formulation and validation. Coastal Engineering, 83 , 243-258.

Higuera, P., Lara, J. L., & Losada, I. J. (2014b). Three-dimensional interaction of waves and porous coastal structures using OpenFOAM®. Part II: Application. Coastal Engineering, 83 , 259-270.

Janin, A., Rodriguez, M., Sakellariou, D., Lykousis, V., & Gorini, C. (2019). Tsunamigenic potential of a holocene submarine landslide along the North Anatolian Fault (Northern Aegean Sea, o Thasos Island): insights from numerical modelling. Natural Hazards & Earth System Sciences, 19 (1).

Koh, H. L., Tan, W. K., Teh, S. Y., & Chai, M. F. (2016). Simulation of potentially catastrophic landslide tsunami in North West Borneo Trough. International Journal of Environmental Science and Development, 7 (12), 889.

Lara, J. L., del Jesus, M., & Losada, I. J. (2012). Three-dimensional interaction of waves and porous coastal structures: Part II: Experimental validation. Coastal Engineering, 64 , 26-46.

Liu, P.-F., Wu, T.-R., Raichlen, F., Synolakis, C., & Borrero, J. (2005). Runup and rundown generated by three-dimensional sliding masses. Journal of Fluid Mechanics, 536 , 107-144.

Losada, I. J., Lara, J. L., & del Jesus, M. (2016). Modeling the interaction of water waves with porous coastal structures. Journal of Waterway, Port, Coastal, and Ocean Engineering, 142 (6), 03116003. doi: 10.1061/(ASCE)WW.1943-5460.0000361

Løvholt, F., Harbitz, C. B., & Haugen, K. B. (2005). A parametric study of tsunamis generated by submarine slides in the Ormen Lange/Storegga area o western Norway. In Ormen Lange{an Integrated Study for Safe Field Development in the Storegga Submarine Area (pp. 219-231). Elsevier.

Løvholt, F., Pedersen, G., Harbitz, C. B., Glimsdal, S., & Kim, J. (2015). On the characteristics of landslide tsunamis. Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 373 (2053), 20140376.

Lynett, P., & Liu, P. L. F. (2005, MAR 8). A numerical study of the run-up generated by three-dimensional landslides. Journal of Geophysical Research-Oceans, 110 (C3). doi: f10.1029/2004JC002443g

Ma, G., Kirby, J. T., Hsu, T.-J., & Shi, F. (2015). A two-layer granular landslide model for tsunami wave generation: Theory and computation. Ocean Modelling, 93 , 40-55.

Ma, Z., Qian, L., Martinez-Ferrer, P., Causon, D., Mingham, C., & Bai, W. (2018). An overset mesh based multiphase flow solver for water entry problems. Computers & Fluids, 172 , 689-705.

McFall, B. C., & Fritz, H. M. (2016). Physical modelling of tsunamis generated by three-dimensional deformable granular landslides on planar and conical island slopes. Proceedings of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences, 472-2188 , 20160052.

Mulligan, R. P., & Take, W. A. (2017). On the transfer of momentum from a granular landslide to a water wave. Coastal Engineering, 125, 16-22.

Romano, A., Bellotti, G., & Di Risio, M. (2013). Wavenumber-frequency analysis of the landslide-generated tsunamis at a conical island. Coastal Engineering, 81 , 32-43.

Romano, A., Di Risio, M., Bellotti, G., Molfetta, M., Damiani, L., & De Girolamo, P. (2016). Tsunamis generated by landslides at the coast of conical islands: experimental benchmark dataset for mathematical model validation. Landslides, 13 (6), 1379-1393.

Romano, A., Di Risio, M., Molfetta, M. G., Bellotti, G., Pasquali, D., Sammarco, P., ... De Girolamo, P. (2017). 3D physical modeling of tsunamis generated by submerged landslides at a conical island: The role of initial acceleration. Coastal Engineering Proceedings, 1 (35), 14.

Romano, A., Lara, J., Barajas, G., Di Paolo, B., Bellotti, G., Di Risio, M., ... De Girolamo, P. (2020). Tsunamis generated by submerged landslides: numerical analysis of the near-field wave characteristics. Journal of Geophysical Research: Oceans, 125 (7), e2020JC016157.

Si, P., Shi, H., & Yu, X. (2018). A general numerical model for surface waves generated by granular material intruding into a water body. Coastal Engineering, 142 , 42-51.

Sue, L., Nokes, R., & Davidson, M. (2011). Tsunami generation by submarine landslides: comparison of physical and numerical models. Environmental Fluid Mechanics, 11

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