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A universal parameter to predict subaerial landslide tsunamis?

Heller, Valentin; Hager, Willi H.

Authors

Willi H. Hager



Abstract

The significance of the impulse product parameter P is reviewed, which is believed to be the most universal parameter for subaerial landslide tsunami (impulse wave) prediction. This semi-empirical parameter is based on the streamwise slide momentum flux component and it was refined with a multiple regression laboratory data analysis. Empirical equations based on P allow for a simple prediction of wave features under diverse conditions (landslides and ice masses, granular and block slides, etc.). Analytical evidence reveals that a mass sliding down a hill slope of angle 51.6° results in the highest waves. The wave height ―observed‖ in the 1958 Lituya Bay case was well predicted using P. Other real-world case studies illustrate how efficient empirical equations based on P deliver wave estimates which support hazard assessment. Future applications are hoped to further confirm the applicability of P to cases with more complex water body geometries and bathymetries.
Keywords: hazard

Journal Article Type Article
Publication Date Apr 29, 2014
Journal Journal of Marine Science and Engineering
Electronic ISSN 2077-1312
Publisher MDPI
Peer Reviewed Peer Reviewed
Volume 2
Issue 2
APA6 Citation Heller, V., & Hager, W. H. (2014). A universal parameter to predict subaerial landslide tsunamis?. Journal of Marine Science and Engineering, 2(2), https://doi.org/10.3390/jmse2020400
DOI https://doi.org/10.3390/jmse2020400
Keywords hazard assessment; impulse wave; landslide; landslide tsunami; physical modelling; wave generation
Publisher URL http://www.mdpi.com/2077-1312/2/2/400
Copyright Statement Copyright information regarding this work can be found at the following address: http://creativecommons.org/licenses/by/4.0

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Copyright Statement
Copyright information regarding this work can be found at the following address: http://creativecommons.org/licenses/by/4.0



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