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http://dx.doi.org/10.9765/KSCOE.2016.28.5.265

Numerical Simulations of the 2011 Tohoku, Japan Tsunami Forerunner Observed in Korea using the Bathymetry Effect  

Lee, Jun-Whan (Global Environment System Research Division, National Institute of Meteorological Sciences)
Park, Eun Hee (Global Environment System Research Division, National Institute of Meteorological Sciences)
Park, Sun-Cheon (Global Environment System Research Division, National Institute of Meteorological Sciences)
Lee, Duk Kee (Global Environment System Research Division, National Institute of Meteorological Sciences)
Lee, Jong Ho (Global Environment System Research Division, National Institute of Meteorological Sciences)
Publication Information
Journal of Korean Society of Coastal and Ocean Engineers / v.28, no.5, 2016 , pp. 265-276 More about this Journal
Abstract
The 2011 Tohoku, Japan Tsunami, which occurred on March 11, 2011, reached the Korean Peninsula and was recorded at numerous tide stations. In the records of the north-eastern tide stations, tsunami forerunners were found in only about a few minutes after the earthquake, which was much earlier than the expected arrival time based on a numerical simulation. Murotani et al. (2015) found out that the bathymetry effect is related to the tsunami forerunners observed in Japan and Russia. In this study, the tsunami forerunners observed in Korea were well reproduced by a numerical simulation considering the bathymetry effect. This indicates that it is important to consider the bathymetry effect for a tsunami caused by an earthquake on shallowly dipping fault plane(e.g. 2011 Tohoku, Japan Earthquake). However, since the bathymetry effect requires additional computation time, it is necessary to examine the problems that results from applying the bathymetry effect to the tsunami warning system.
Keywords
tsunami forerunner; bathymetry effect; 2011 Tohoku; Japan tsunami; tide station; arrival time;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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