EDGE WAVES ON COMPLEX BEACH PROFILES

被引:59
作者
HOLMAN, RA [1 ]
BOWEN, AJ [1 ]
机构
[1] DALHOUSIE UNIV, DEPT OCEANOG, HALIFAX B3H 4J1, NS, CANADA
关键词
D O I
10.1029/JC084iC10p06339
中图分类号
P7 [海洋学];
学科分类号
0707 ;
摘要
In order to interpret field data in terms of edge wave modes, investigators usually assume that the beach profile is linear, allowing the use of simple analytical solutions for edge wave structure and wave-length. The validity of this assumption is checked by using a numerical model to find the edge wave modes on a typical concave beach. The motion of the offshore profile of the edge wave due to a change of tidal elevation is dramatically different on a concave beach than on a plane beach. The tendency for the profile to move offshore for a drop in tide is compensated by the decrease in mean beach slope and hence reduction in wavelength and offshore extent of the wave. -from Authors
引用
收藏
页码:6339 / 6346
页数:8
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