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J. Mar. Sci. Eng. 2019, 7(1), 8; https://doi.org/10.3390/jmse7010008

Impulse Wave Runup on Steep to Vertical Slopes

Laboratory of Hydraulics, Hydrology and Glaciology (VAW), ETH Zurich, CH-8093 Zürich, Switzerland
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Received: 9 November 2018 / Revised: 15 December 2018 / Accepted: 18 December 2018 / Published: 7 January 2019
(This article belongs to the Special Issue Tsunami Science and Engineering II)
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Abstract

Impulse waves are generated by landslides or avalanches impacting oceans, lakes or reservoirs, for example. Non-breaking impulse wave runup on slope angles ranging from 10° to 90° (V/H: 1/5.7 to 1/0) is investigated. The prediction of runup heights induced by these waves is an important parameter for hazard assessment and mitigation. An experimental dataset containing 359 runup heights by impulse and solitary waves is compiled from several published sources. Existing equations, both empirical and analytical, are then applied to this dataset to assess their prediction quality on an extended parameter range. Based on this analysis, a new prediction equation is proposed. The main findings are: (1) solitary waves are a suitable proxy for modelling impulse wave runup; (2) commonly applied equations from the literature may underestimate the runup height of small wave amplitudes; (3) the proposed semi-empirical equations predict the overall dataset within ±20% scatter for relative wave crest amplitudes ε, i.e., the wave crest amplitude normalised with the stillwater depth, between 0.007 and 0.69. View Full-Text
Keywords: impulse wave; solitary wave; landslide tsunami; wave runup; runup prediction impulse wave; solitary wave; landslide tsunami; wave runup; runup prediction
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Evers, F.M.; Boes, R.M. Impulse Wave Runup on Steep to Vertical Slopes. J. Mar. Sci. Eng. 2019, 7, 8.

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