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Abstract
The morphology of sand dunes formed on the Maisaka and Hamamatsu coasts facing the Enshu-nada Sea was investigated by field observation. The development of sand dunes was numerically predicted using a model predicting the effect of both waves and windblown sand. In the field observation, the development of sand dunes with a rhythmic shape similar to a sand spit was observed in the backshore area. It was found that pine trees died in the area with a narrow sand dune owing to wave run-up and the dispersion of salinity during storm wave conditions. In the numerical simulation, the formation of sand dunes was successfully reproduced under the condition that the predominant wind blew at a large angle relative to the direction normal to the shoreline.References
Andreotti, B., Claudin, P., and Douady, S. 2002. Selection of dune shapes and velocities, Part 1: Dynamics of sand, wind and barchans, Eur. Phys. J., B28, 321–339.
Horikawa, K., Hotta, S., Kubota, S., and Katori, K. 1983. Field observation of windblown sand by trench trap, J. Jpn. Coastal Eng., Vol. 30, 406–410. (in Japanese)
Ishikawa, T., Uda, T., Furuike, K., Kainuma, M., and Ohashi, Y. 2019. Shore protection effect to west Enshu-nada coast expected by increase in sand supply from Tenryu River, Proc. JSCEB2 (Coastal Engineering), Vol. 75, No. 2, I_577–I_582. (in Japanese)
Junaidi, Aoki, S., Kato, S., Kataoka, M., Wakae, N., and Amasaki, T. 2009. Characteristics of sediment transport and short-term topographic change on the Nakatajima dune, Proc. JSCEB2 (Coastal Engineering), Vol. 65, No. 1, I_621–I_625. (in Japanese)
Katsuki, A. and Kikuchi, M. 2006. Simulation of barchan dynamics with interdune sand stream, RIMS Kokyuroku, 1472, 67–70. (in Japanese)
NEDO NeoWinds (Accessed on 10 January 2020).
http://app10.infoc.nedo.go.jp/Nedo_Webgis/index.html
Pye, K. and Tsoar, H. 1990. Aeolian sand and sand dunes, Unwin Hyman, London, 42–43.
Sato, S. 2008. Dynamics of sand movement on Hamamatsu coast facing Enshu-Nada, Proc. JSCEB, Vol. 64, No. 3, 192–201. (in Japanese)
Uda, T., Ishikawa, T., Furuike, K., Aoba, Y., and Oido, S. 2014. Reproduction of beach changes after beach nourishment on Hamamatsu-Shinohara coast in Shizuoka Prefecture and its prediction, Proc. JSCEB2 (Coastal Engineering), Vol. 70, No. 2, I_691–I_695. (in Japanese)
Uda, T., Serizawa, M., and Miyahara, S. 2018. Morphodynamic model for predicting beach changes based on Bagnold’s concept and its applications, INTEC, London, UK, p. 188.
Uda, T. and Kawano, S. 1996. Development of a predictive model of contour line change due to waves, Proc. JSCE, No. 539/II-35, 121–139. (in Japanese)
Yokota, T., Uda, T., and Noshi, Y. 2022. Numerical simulation on sand accumulation behind artificial reefs and enhancement of windblown sand to hinterland, in Numerical Simulation, INTEC, London, UK, 1–12.
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Copyright (c) 2023 Takuya Yokota, Takaaki Uda, Akio Kobayashi, Yasuhito Noshi