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Breakpoint-forced and bound long waves in the nearshore: A model comparison

By:
Edited by:
Anon

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Abstract

A finite-difference model is used to compare long wave amplitudes arising from two-group forced generation mechanisms in the nearshore: long waves generated at a time-varying breakpoint and the shallow-water extension of the bound long wave. Plane beach results demonstrate that the strong frequency selection in the outgoing wave predicted by the breakpoint-forcing mechanism may not be observable in field data due to this wave's relatively small size and its predicted phase relation with the bound wave. Over a bar/trough nearshore, it is shown that a strong frequency selection in shoreline amplitudes is not a unique result of the time-varying breakpoint model, but a general result of the interaction between topography and any broad-banded forcing of nearshore long waves.

Additional Publication Details

Publication type:
Conference Paper
Publication Subtype:
Conference Paper
Title:
Breakpoint-forced and bound long waves in the nearshore: A model comparison
ISBN:
0872629333
Volume
1
Year Published:
1993
Language:
English
Publisher:
Publ by ASCE
Publisher location:
New York, NY, United States
First page:
860
Last page:
867
Number of Pages:
8
Conference Title:
Proceedings of the 23rd International Conference on Coastal Engineering
Conference Location:
Venice, Italy
Conference Date:
4 October 1992 through 9 October 1992