Kentaro Hayashi, Koji Hayashimoto, Kazuki Yagisawa, Nobuhisa Kobayashi


Notsukezaki Sand Spit is the longest sand spit in Japan and the wave and morphological characteristics vary along the spit. The main purpose of this study is to investigate the morphological changes of the sand spit for long-term and mid-term field observations and aerial photos. The natural and morphological characteristics are investigated based on the field observations and aerial photos for a long-term period (decades). The regional sediment budget is estimated using the shoreline changes and the result of wave hindcast simulation for five years. Finally, the cross-shore beach processes are examined using the numerical model, CSHORE.


sand spit, regional sediment budget, cross-shore beach process

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Johnson, D.W. 1919. Shore Processes and Shoreline Development, Wiley, New York, 584p. [Facsimile edition: Hafner, New York (1965)]

King, C.A.M. and McCullagh. M.J. 1971. A Simulation Model of A Complex Recurved Spit, Journal of Geology, Vol.79, pp.22-37

Kobayashi, N., A. Payo, and L. Schmied. 2008. Cross-shore Suspended Sand and Bed Load Transport on Beaches. Journal of Geophysical Research, 113, C07001, doi: 10.1029/ 2007JC004203.

Kobayashi, N., A. Farhadzadeh, and J.A. Melby. 2010. Wave Overtopping and Damage Progression of Stone Armor Layer. J. Waterway, Port, Coastal and Ocean Eng., 136(5), 257-265.

Uda, T. and K. Yamamoto. 1992. Formative Process of Notsukezaki Compound Spit in Hokkaido, Transactions of Japanese Geomorphological Union, Vol.13, pp.17-33. (in Japanese)

Uda, T., and A. Kawamori, and T. Wakabayashi. 1994. Coastal Erosion and Coastal Protection at Notsuzaki Coast in Hokkaido, Proceedings of Coastal Engineering, JSCE, Vol.41, pp.521-525. (in Japanese)

USACE. 1984. Shore Protection Manual, U.S. Army Corps of Engineers, Washington DC 20314.

Van Rijn, L.C., B.G. Ruessink, J.P.M. Mulder. 2002. Coast3D-Egmond; the Behavior of a Straight Sandy Coast on the Time Scale of Storms and Seasons, Aqua Publications, The Netherlands. PMCid:1771355

Van Rijn, L.C., D.J.R. Walstra, B.Grasmeijer, J. Sutherland, S. Pan, and J.P Sierra. 2003. The Predictability of Cross-shore Bed Evolution of Sandy Beaches at the Time Scale of Storms and Seasons using Process-based Profile Models, Coastal Engineering, 47, 295-327.