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You are here : eLibrary : IAHR World Congress Proceedings : 36th Congress - The Hague (2015) ALL CONTENT : Sediment management and morphodynamics : Analysis of multi-scale beach change
Analysis of multi-scale beach change
Author : HARSHINIE KARUNARATHNA(1), HAJIME MASE(2) & YASUYUKI BABA(3)
h change at Joetsu-Ogata Coast located in the Niigatha Prefecture, Japan, was investigated by using
monthly cross shore beach profiles measured at this beach. Joetsu-Ogata Coast faces the Sea of Japan and is
subjected to high energy wave conditions with strong winter/summer seasonal signature. The shoreline position seems
to follow the seasonal variability of incident wave climate. During summer months, the beach profile variability occurs
mostly in the sub-tidal part of the profile however, a significant amount of upper beach change can be seen during winter
months. Average annual shoreline position show a long term beach accretion, however this trend doesn’t show any
correlation with incident wave climate and also available data are not enough to investigate this further. Empirical
Orthogonal Function analysis of the profiles show that the variability of beach profile shape is dominated by (a) upper
shore face steepening; (b) sub tidal berm development and dissipation; and (c) variability of the overall profile slope,
which have some longer than seasonal cyclic signatures.Form Required :
File Size : 443,542 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 36th Congress - The Hague (2015) ALL CONTENT
Article : Sediment management and morphodynamics
Date Published : 19/08/2015
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