Experimental modeling of a rip current system

Merrick C. Haller*, R. A. Dalrymple, I. A. Svendsen

*Corresponding author for this work

Research output: Contribution to conferencePaperpeer-review

12 Scopus citations

Abstract

Results from an experimental investigation of a rip current system in a laboratory wave basin are presented. The modeled system includes a planar beach with a superimposed longshore bar containing two rip channels. Dense measurements of water surface elevation, cross-shore and longshore currents are presented. The experimental results indicate that, in addition to the steady mean water level gradients which drive the steady nearshore circulation, time varying pressure gradients are generated in the rip current system and these gradients are directly related to measured current oscillations in the rips. Oscillations in the rip currents are shown to have multiple scales. A simple calculation shows that classical jet instability theory can predict the order of magnitude of the measured short time scale rip current oscillations.

Original languageEnglish (US)
Pages750-764
Number of pages15
StatePublished - Jan 1 1998
EventProceedings of the 1997 3rd International Symposium on Ocean Wave Measurement and Analysis, WAVES - Virginia Beach, VA, USA
Duration: Nov 3 1997Nov 7 1997

Other

OtherProceedings of the 1997 3rd International Symposium on Ocean Wave Measurement and Analysis, WAVES
CityVirginia Beach, VA, USA
Period11/3/9711/7/97

ASJC Scopus subject areas

  • Earth and Planetary Sciences(all)

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