Erosion characteristics of sea cliff on the fukushima coast

Akira Mano

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)

Abstract

The Fukushima Coast composed of a series of soft rock cliffs had suffered from severe erosion due to two factors: high wave attacks and weak rocks. This study attempts to quantify these factors, respectively, by the onshore component of wave energy flux at the breaking point, F, through the refraction analysis, and by Young's modulus, E, through the measurement of the elastic wave. The dimensional consideration yields a dimensionless parameter ∏C = qEL/F where q is the recession rate, L is the cliff height. On this coast, the value of ∏C -0.082 obtained from the best fit of the present data-set gives the recession characteristic q = 0.082F/EL.

Original languageEnglish
Pages (from-to)43-63
Number of pages21
JournalCoastal Engineering Journal
Volume41
Issue number1-4
Publication statusPublished - 1999 Jan 1

Keywords

  • Cliff erosion
  • Energy flux
  • Refraction
  • Soft rock
  • Young's modulus

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Modelling and Simulation
  • Ocean Engineering

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