Effect of the Bottom Topography on Tsunami Propagation in the East (Japan) Sea  

作　　者：CHOI Byung-Ho PELINOVSKY Efim JEON Chul-Kyoo KIM Kyeong-Ok 

机构地区：[1]Department of Civil and Environmental Engineering, Sungkyunkwan University [2]Department of Nonlinear Geophysical Processes, Institute of Applied Physics,Nizhny Novgorod 603950, Russia

出　　处：《China Ocean Engineering》2008年第2期277-290,共14页中国海洋工程（英文版）

基　　金：The work was financially supported by the Korean Ministry of Land,Transport and Maritime Affairs;INTAS(Grant No.06-1000013-9236)

摘　　要：A study of tsunami events in the East （Japan） Sea using continuous Galerkin finite element model, aiming at reproducing tsunami waves generated by underwater earthquakes in 1983 and 1993 respectively has been performed focusing on the geographic extent of a topographic feature in the East （Japan） Sea. Numerical models can be the proper tools to study the combined effects of realistic topography. Subsequently, using the FEM based two-dimensional model we have simulated the smoothed and flattened topographic effects by removal of Yamato Rise and seamounts for the cases of tthe 1983 Central region earthquake tsunami and the 1993 southwestern Hokkaido earthquake tsunami. The results have shown that there will be higher tsunamis along the eastern coasts of Korea in general except some areas, like Sokcho with removal of topographic highs, thus providing complicated bottom topography of the East （Japan） Sea as effective tsunami energy scattering.A study of tsunami events in the East （Japan） Sea using continuous Galerkin finite element model, aiming at reproducing tsunami waves generated by underwater earthquakes in 1983 and 1993 respectively has been performed focusing on the geographic extent of a topographic feature in the East （Japan） Sea. Numerical models can be the proper tools to study the combined effects of realistic topography. Subsequently, using the FEM based two-dimensional model we have simulated the smoothed and flattened topographic effects by removal of Yamato Rise and seamounts for the cases of tthe 1983 Central region earthquake tsunami and the 1993 southwestern Hokkaido earthquake tsunami. The results have shown that there will be higher tsunamis along the eastern coasts of Korea in general except some areas, like Sokcho with removal of topographic highs, thus providing complicated bottom topography of the East （Japan） Sea as effective tsunami energy scattering.

关 键 词：Yamato Rise 1983 central East （Japan） Sea tsunami 1993 southwestern Hokkaido tsunami 

分 类 号：P731.25[天文地球—海洋科学]