Numerical simulations of the coastal effects of tsunami waves caused by the 1993 Hokkaido-Nansei-Oki earthquake
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Numerical simulations of the coastal effects of tsunami waves caused by the 1993 Hokkaido-Nansei-Oki earthquake
Numerical simulations of the coastal effects of tsunami waves caused by the 1993 Hokkaido-Nansei-Oki earthquake
海洋湖沼学报(英文)2010年28卷第5期 页码:1029-1039
Affiliations:
1. Laboratory of Tropical Environmental Dynamics (LED) South China Sea Institute of Oceanology Chinese Academy of Sciences
2. Marine Observation and Research Laboratory (MORL) South China Sea Institute of Oceanology Chinese Academy of Sciences
3. Graduate University of Chinese Academy of Sciences
Author bio:
Funds:
Supported by the Knowledge Innovation Program of the Chinese Academy of Sciences (No. KZCX1-YW-12-01), the National Natural Science Foundation of China (No. 40576014);Science and Technology Planning Project of Guangdong Province, China (No. 2005D33201006)
Numerical simulations of the coastal effects of tsunami waves caused by the 1993 Hokkaido-Nansei-Oki earthquake[J]. 海洋湖沼学报(英文), 2010,28(5):1029-1039.
Pan, W., Wang, S. & Cai, S. Numerical simulations of the coastal effects of tsunami waves caused by the 1993 Hokkaido-Nansei-Oki earthquake., Chin. J. Ocean. Limnol. 28, 1029–1039 (2010). https://doi.org/10.1007/s00343-010-9041-2
Numerical simulations of the coastal effects of tsunami waves caused by the 1993 Hokkaido-Nansei-Oki earthquake[J]. 海洋湖沼学报(英文), 2010,28(5):1029-1039. DOI: 10.1007/s00343-010-9041-2.
Pan, W., Wang, S. & Cai, S. Numerical simulations of the coastal effects of tsunami waves caused by the 1993 Hokkaido-Nansei-Oki earthquake., Chin. J. Ocean. Limnol. 28, 1029–1039 (2010). https://doi.org/10.1007/s00343-010-9041-2DOI:
Numerical simulations of the coastal effects of tsunami waves caused by the 1993 Hokkaido-Nansei-Oki earthquake
摘要
Abstract
Generally
tsunami waves become hazardous only when approaching the coast. Studying the runup and inundation of tsunami waves is important for understanding the tsunami evolution and for tsunami hazard assessment. Here
we simulated the 1993 Hokkaido-Nansei-Oki (HNO) tsunami using a finite-difference model based on nonlinear shallow-water equations. We focused on the runup and inundation of tsunami wave propagation onto coastal area of Okushiri Island near Hokkaido
Japan
and investigate the relationship of different runup heights with the morphology and bathymetry of the seashore. In the simulation
a nested 4-layer grid system and moving boundary technique are adopted to study runup and inundation. The calculated tsunami heights and inundations in the region agreed well with field measurements. The local bathymetric and topographic characteristics had a first-order effect on the runup. Numerical experiments show that the focusing of certain local bathymetric features would amplify both wave height and current velocity remarkably. The results show that computation on dense grids is necessary to reproduce the observed runup heights
and inundation velocity is an important factor preventing tsunami devastation. In addition
we discussed the potential capability of sediment transport to illustrate the impact of tsunami waves on coastal geomorphology.
关键词
Keywords
references
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相关作者
Qian MA
Chunxin YUAN
Xiaopei LIN
Xue'en CHEN
Jieshuo Xie
Shuqun Cai
Yinghui He
相关机构
Physical Oceanography Laboratory/Institute for Advanced Ocean Study, Ocean University of China and Qingdao National Laboratory for Marine Science and Technology
School of Mathematical Sciences, Ocean University of China
LED South China Sea Institute of Oceanology Chinese Academy of Sciences