Holman, R. A., and Bowen, A. J. 1979. "Edge Waves on Complex 

 Beach Profiles," Journal of Geophysical Research, Vol 84, No. C10, 

 pp 6339-6346. 



The authors present a model for solving edge wave motions on complex 

 beach profiles. Previous investigations generally used analytical solutions 

 for describing edge waves. These solutions exist only for two types of beach 

 topography, linear and exponential. This paper used a numerical method to 

 solve the shallow-water wave equations for any form of cross-shore bottom pro- 

 file. This model was used to determine the accuracy of the plane-beach 

 assumption by testing the sensitivity of edge wave characteristics (e.g., 

 wavelength and dispersion) to perturbations in beach profiles. The numerical 

 model for the case of edge waves on a typical concave beach was compared to 

 the linear slope analytical solution. The results showed that the plane-beach 

 assumption could produce wavelength errors of a factor of 2.0. Considering 

 computational expense, the plane-beach assumption is desirable over the numer- 

 ical scheme. The errors in determining edge wave wavelengths for the plane 

 beach can be greatly reduced with an appropriate choice of beach slope. A 

 method for determining an effective beach slope was presented, which was a 

 great improvement in estimating the edge wave dispersion relation for fairly 

 complex topographies. 



In addition to the effect of beach slope, changes in tidal elevations 

 can dramatically alter the cross-shore edge wave profile on a concave beach 

 compared to a plane beach. Edge waves forced at a particular frequency will 

 vary in wavelength with the tidal elevation, which in turn may have an influ- 

 ence on the formation of rhythmic topography. Edge wave damping on a typical 

 concave beach is also discussed with a conclusion that the edge wave energy 

 spectra may be less energetic at low tide than at high tide. Thus, this paper 

 covered many important considerations in interpreting field data for the mea- 

 surement of edge waves. 



Holman, R. A., Huntley, D. A., and Bowen, A. J. 1978. "Infragrav- 

 ity Waves in Storm Conditions," Proceedings, 1 6th Coastal Engineer- 

 ing Conference, American Society of Civil Engineers, pp 268-284. 



A field study in Nova Scotia measured an increase in infragravity energy 

 during a storm. The energy spectra were dominated by a strong 100-sec peak 

 which remained constant in frequency despite significant changes in the inci- 

 dent waves. They felt that longshore topography was important in providing 

 the length scale necessary for the frequency selection. Their observations 

 indicated that for different incident wave conditions and different offshore 

 profiles edge waves adjust to give the same wavelength, apparently a result of 

 longshore topographic trapping. 



Holman, R. A., and Sallenger, A. H. 1985. "Setup and Swash on a 

 Natural Beach," Journal of Geophysical Research, Vol 90, No. C1, 

 pp 945-953- 



Set-up and swash measurements were made from a data set of 154 run-up 

 time series with a wide variation in the relevant parameters. Incident wave 

 heights ranged from 0.4 to 4.0 m, periods ranged from 6 to 1 6 sec, and fore- 

 shore slope 8 varied by a factor of 2. Runup was found to correlate with the 



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