ID 2957
File
Title Transcription
トットリ サキュウ カイガン ノ カイテイ チケイ ノ ヘンカ
Title Alternative
Bathymetric Changes along Tottori Sand Dune Coast
Authors
Keywords
Beach topography
Cusp
Bathymetry
Offshore bar system
Crescentic bar
Rip current
Rip channel
Abstract
The present study deals with a short-term change of an offshore bar topology along Tottori coast during 5 years (2004-2009). This coast has a multiple offshore bar system. An inner bar lies around 100m offshore and an outer bar lies between 250m and 500m offshore. The outer bars have crescentic feature with an offshore convexity. Wave lengths of the outer bar are 500m ~ 1000m and shows small yearly change. The shore line has a cusping feature. Their wave lengths are 300m ~ 450m. Inner bars also show crescentic feature in winter. The wave length ratio of cusp and inner bar to outer bar is roughly 1: 1:2. In early winter, amplitude of the outer bar reduces and in the late winter, it grows again. The difference reaches to 100m. This change seems corresponding to the integrated incident wave energy.
Publisher
鳥取大学大学院工学研究科研究報告編集委員会
Content Type
Departmental Bulletin Paper
ISSN
0385-8596
Journal Title
鳥取大学大学院工学研究科/工学部研究報告
Current Journal Title
Reports of the Faculty of Engineering, Tottori University
Volume
40
Start Page
5
End Page
22
Published Date
2009-12
Text Version
Publisher
Rights
注があるものを除き、この著作物は日本国著作権法により保護されています。 / This work is protected under Japanese Copyright Law unless otherwise noted.
Citation
鳥取大学大学院工学研究科/工学部研究報告. 2009, 40, 5-22
Department
Faculty of Engineering/Graduate School of Engineering
Language
Japanese