Numerical simulation of tsunami propagation with corrected dispersion effects in ocean

Kang Wook Park, Taemin Ha, Young Il Moon, Yong Sik Cho

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

A numerical modeling of transoceanic tsunamis has been conducted by solving the linear shallow-water equations with the leap-frog scheme in a staggered grid system. When a tsunami propagates a long distance, the frequency dispersion effects play an important role and should be considered in numerical simulation. Recently, Cho et al. (2007) have developed a practical dispersion-correction scheme to consider the frequency dispersion by using the numerical dispersion. The model has been verified by comparing numerical results with available analytical solution and field survey data. In this study, in order to reproduce dispersion effects on the actual terrain, propagation of the 2011 East Japan Tsunami is simulated in the Pacific Ocean. Numerical results such as, the arrival time and the leading wave crest elevation at tidal stations are compared with available observed data.

Original languageEnglish
Title of host publicationProceedings of the 22nd (2012) International Offshore and Polar Engineering Conference
Pages153-157
Number of pages5
StatePublished - 2012
Event22nd International Offshore and Polar Engineering Conference, ISOPE-2012 - Rhodes, Greece
Duration: 17 Jun 201222 Jun 2012

Publication series

NameProceedings of the International Offshore and Polar Engineering Conference
ISSN (Print)1098-6189
ISSN (Electronic)1555-1792

Conference

Conference22nd International Offshore and Polar Engineering Conference, ISOPE-2012
Country/TerritoryGreece
CityRhodes
Period17/06/1222/06/12

Keywords

  • Dispersion effects
  • Finite difference method
  • Linear shallow-water equations
  • Tsunami

Fingerprint

Dive into the research topics of 'Numerical simulation of tsunami propagation with corrected dispersion effects in ocean'. Together they form a unique fingerprint.

Cite this