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Apr 26, 2012
Spatial Distribution of Cross-Shore Sediment Transport Rate for Berm Formation and Erosion
Authors: Takayuki Suzuki [email protected], Maiko Takeuchi [email protected], Naoki Tomoda [email protected], Satomi Yamaguchi [email protected], and Yoshiaki Kuriyama [email protected]Author Affiliations
Publication: Coastal Sediments '07
Abstract
A 2.5-year data set of beach profiles was used to examine the characteristics of berm shape and the spatial distributions of the cross-shore sediment transport rate for berm formation and erosion. The seaward distance, x, is normalized by the distance of the investigation area, X, which is from the maximum wave run-up position, x/X = 0.0, to the position where the standard deviation of the beach profile takes the lowest value seaward of the mean shoreline position, x/X = 1.0. Analysis of the data reveals that the landward sediment transport rate for the berm formation increases from x/X = 0.0 to 0.4 and reaches a constant value toward x/X = 1.0. As for berm erosion, the landward sediment transport rate peaks at x/X = 0.10 and the sediment transport rate changes in the seaward direction at x/X = 0.20. From this position, the rate decreases until x/X = 0.60.
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© 2007 American Society of Civil Engineers.
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Published online: Apr 26, 2012
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Researcher, Littoral Drift Division, Port and Airport Research Institute (PARI), Nagase 3-1-1, Yokosuka, Kanagawa 239-0826, Japan. E-mail: [email protected]
Graduate student, Toyohashi University of Technology, Department of Architecture and Civil Engineering, Tempaku-cho 1-1, Toyohashi, Aichi 441-8580, Japan. E-mail: [email protected]
Researcher, Littoral Drift Division, Port and Airport Research Institute, Nagase 3-1-1, Yokosuka, Kanagawa 239-0826, Japan. E-mail: [email protected]
Researcher, Graduate School of Engineering, Hokkaido University, Nishi 8, Kita 13, Sapporo, Hokkaido 060-8628, Japan. E-mail: [email protected]
Head of Littoral Drift Division, Port and Airport Research Institute, Nagase 3-1-1, Yokosuka, Kanagawa 239-0826, Japan. E-mail: [email protected]
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