A FIELD EXPERIMENT ON THE FORMATION OF BEACH CUSPS

Michio Sato, Keiji Kuroki, Tomoaki Shinohara

Abstract


This paper describes an attempt at investigating the actual time scale needed to form beach cusps, and the issue whether beach cusps are accretionary features or erosional ones. Data was collected through a field experiment. The experiment was conducted by tracking the process of beach cusp formation on a beach face, which had been flattened in advance by erasing previously formed beach cusps with a bulldozer. New beach cusps gradually developed with every high tide and attained a similar size to the previous ones after three tides.

Keywords


beach cusps; field experiments; cusp formation

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