Importance of the initial waveform and coastal profile for tsunami transport of boulders

K. Goto, K. Okada, F. Imamura

Research output: Contribution to journalArticlepeer-review

21 Citations (Scopus)

Abstract

The 2004 Indian Ocean tsunami transported large boulders shoreward at Pakarang Cape, Thailand. To elucidate boulder transport processes using their original locations, initial tsunami waveform, and coastal profiles, we conducted a cross-sectional calculation. Our results indicate that the tsunami (trough arrives first) might have displaced boulders and cast some on the tidal bench. However, if the wave crest arrives first, only some reef-edge boulders are displaced and emplaced on the tidal bench. More and larger boulders are displaced an deposited on the tidal bench when the reef slope is gentle, as at Pakarang Cape, than for a steep slope case.

Original languageEnglish
Pages (from-to)53-61
Number of pages9
JournalPolish Journal of Environmental Studies
Volume18
Issue number1
Publication statusPublished - 2009 Mar 20

Keywords

  • 2004 Indian Ocean tsunami
  • Numerical model
  • Pakarang Cape
  • Tsunami boulders

ASJC Scopus subject areas

  • Environmental Chemistry
  • Environmental Science(all)

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