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原文传递 Energy Method for Approximating Overland Tsunami Flows

题名：	Energy Method for Approximating Overland Tsunami Flows
其他题名：	ASCE.(2013)."Minimum design loads for buildings and other structures."ASCE/SEI 7-10,Reston,VA.
正文语种：	英文
作者：	David L. Kriebel
关键词：	simulation；characteristics；velociti；predict；conditions；method；graphic；velocity；energy；precision
摘要：	This paper applies a simple energy method to predict characteristics of overland tsunami flows based on extrapolation of the energy grade line between the shoreline and the tsunami run-up limit. Starting with a mapped run-up or inundation limit from tsunami hazard maps or from field surveys, the method reconstructs maximum inundation depths and velocities across a flooded topographic transect to the shoreline. The energy method is evaluated first in comparison with thousands of numerical simulations conducted on idealized topographies using a freesurface wave model. The method is then evaluated in more detailed simulations over realistic topography using a second tsunami-evolution model. Finally, the method is evaluated against field observations of inundation depths from tsunami events in Chile and Japan. In all cases, inundation depths are predicted quite well, with little bias across a wide range of flow conditions and topographic conditions. Predicted velocities show less precision but seem to predict the general velocity decay from shoreline to run-up limit. The method then overestimates and provides a conservative estimate of the maximum momentum flux.
出版年：	2017
论文唯一标识：	P-108Y2017V143N05007
英文栏目名称：	TECHNICAL PAPERS
doi：	10.1061/(ASCE)WW.1943-5460.0000393
期刊名称：	Journal of Waterway, Port, Coastal, and Ocean Engineering
拼音刊名(出版物代码)：	P-108
卷：	143
期：	05
页码：	57-75