Simulation of Seasonal Bathymetric Change at Haeundae Beach with Two Representative Wave Settings SCIE SCOPUS

Cited 2 time in WEB OF SCIENCE Cited 2 time in Scopus
Title
Simulation of Seasonal Bathymetric Change at Haeundae Beach with Two Representative Wave Settings
Author(s)
Kim, Hyoseob; Jin, Jae Youll; Jang, Changhwan; Yoo, Ho Jun; Hwang, Dae Hee
KIOST Author(s)
Jin, Jae Youll(진재율)
Publication Year
2014
Abstract
Long-term shoreline position of Haeundae Beach has been quite stable notwithstanding seasonal oscillatory movement. Bathymetry around Haeundae Beach was surveyed on 7 August 2007 and 12 November 2007 by using an echo-sounder, while wave, tide, and tidal current were measured between the two survey days, so that bathymetric change at Haeundae Beach was obtained from the two surveys. According to the surveys the east part of the beach was eroded, and the west part of the beach was accreted. Measured waves from SSE, SE, ESE, E during the period were stronger than measured waves from S. SSW, SW, WSW. A numerical model system CST3D was adopted to reproduce the bathymetric change at Haeundae Beach during the period. Two representative wave settings are chosen for the period as a minimum number to represent the time-series of wave record, based on equivalent sediment flux concept contained in the CERC formula. Wave field, wave-induced force field, wave-induced current field, sediment transport field, and bathymetric change are computed from individual modules, SWAN, WIF, FLOW, SED in CST3D, respectively. Computed bathymetric change agrees reasonably well with measured one. It is believed that selection of two representative wave settings is useful for simulation of seasonal bathymetric change for fairly straight morphology like Haeundae. CST3D is thought to effectively describe overall seasonal sediment transport pattern and consequent bathymetric change at Haeundae Beach.
ISSN
0749-0208
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/2990
DOI
10.2112/SI72-031.1
Bibliographic Citation
JOURNAL OF COASTAL RESEARCH, pp.173 - 178, 2014
Publisher
COASTAL EDUCATION & RESEARCH FOUNDATION
Subject
SEDIMENT TRANSPORT
Keywords
CST3D; Haeundae Beach; wave induced current; bathymetric change
Type
Article
Language
English
Document Type
Article
Publisher
COASTAL EDUCATION & RESEARCH FOUNDATION
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