transport rate distribution which decayed exponentially with time. The data 

 set given by Kajima et al . (1983b) is used in the present work. 



102. Sasaki (1983) developed a conceptual three-dimensional beach stage 

 model based on extensive field measurement from two beaches in Japan (see also 

 Sonu 1969, Short 1979). Transition between the different stages was deter- 

 mined as a function of the average deepwater wave steepness and the average 

 breaker height divided by the median grain size. A larger breaker height and 

 deepwater wave steepness caused greater shoreline recession during storms, 

 whereas a coarser grain size gave reduced shoreline retreat. 



103. Sunamura (1983) developed a simple numerical model of shoreline 

 change caused by short-term cross-shore events and described both erosional 

 and accretional phases of a field beach. Exponential response functions were 

 used to calculate the magnitude of shoreline change, and direction was given 

 by the criterion proposed by Sunamura and Horikawa (1975). 



104. Vellinga (1983, 1986) presented an empirically based mathematical 

 model for calculating dune erosion during high surge -short duration storm 

 events. The amount of dune recession was determined from the significant wave 

 height, storm surge level, and beach profile shape during storm conditions. 

 Van de Graaff (1983) discussed a probabilistic approach for estimating dune 

 erosion. Distribution functions for a number of important parameters regard- 

 ing dune erosion were suggested such as maximum storm surge level, significant 

 wave height, median grain size, and profile shape. Visser (1983) applied a 

 probability-based design scheme to the dunes in the Delta area of The 

 Netherlands (Verhagen 1985). 



105. Seelig (1983) analyzed large wave tank data from Saville (1957) 

 and developed a simple prediction method to estimate beach volume change above 

 the still -water level. 



106. Balsillie (1984) related longshore bar formation to breaking waves 

 from field data and developed a numerical model to predict profile recession 

 produced by storm and hurricane activity. 



107. Davidson-Arnott and Randall (1984) performed field measurements of 

 the spatial and temporal characteristics of the surface elevation and cross - 

 shore current spectra on a barred profile at St. Georgian Bay, Lake Ontario. 



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