Short-term sand coarsening process in a backshore between headlands

Keiko Udo, Hironori Tanabe, Akira Mano

Research output: Contribution to journalConference articlepeer-review

2 Citations (Scopus)

Abstract

Field observations of backshore topography and sand grain size were conducted from December 2003 to February 2005 at the Aotsuka Beach facing the Pacific Ocean in Japan, in order to investigate both wave and wind impacts on backshore processes at an eroded beach between artificial headlands. The beach was nourished in the measurement period but its effect on the backshore was limited. Instead, during a storm in January 2005, sand was coarsened remarkably in the seaward part of backshore just after large waves; and successively coarsened landward of the coarsening area in February. The sand coarsening processes could be explained from both wave and wind actions that coarse sand was transported to wave run-up area by large waves and then to the landward by strong landward winds, similarly to an accreted natural beach.

Original languageEnglish
Pages (from-to)1901-1913
Number of pages13
JournalProceedings of the Coastal Engineering Conference
Publication statusPublished - 2009 Dec 1
Event31st International Conference on Coastal Engineering, ICCE 2008 - Hamburg, Germany
Duration: 2008 Aug 312008 Sep 5

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Ocean Engineering
  • Oceanography

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