Recovery of sound quality of singing sand by sediment renourishment

Abstract

It was shown that ignition loss (organic matter adhered to singing sand) could be new index related to reduction of sound quality in 'singing sand'. Ignition loss for the Kotobiki Beach was found to be about 0.5%. To recover the quality of the sound producing property of singing sand, wave action, bottom profile and sediment renourishment were investigated. For optimum sound recovery of the beach, it was found that the ideal injection point was near the offshore bar under erosive wave action conditions.