80 



60 



x"40 

 I 



20 



EAST HARBOR 



.s^O^ 



<C< 



LAKESHORE PARK 



<b^' 



V 



# 



.<^ 



WllfmROP BEACH (H) 



HOLLY BEACH 



• LAKEVIEW PARK 



iRESQUE BLE (H) * rt 



Q WINTHROP BEACH (L) 



PRESQU^ ISLE (L) 



CASILEWOOD c. 



• PARK QP 



CENTRAL BEACH .0.0 



^O 



iJ!*' 



12 3 4 

 Ls/ Lg 



Figure 4. Morphological response as a function of 

 structural parameters (after Pope and Dean 1986) 



differentiated in Figure 4 for those projects with a large water level range 

 (Presque Isle and Winthrop Beach) by the symbols (H) and (L) , respectively. 

 Ahrens and Cox (in press) 



27. Ahrens and Cox (in press) used the beach response index classifica- 

 tion scheme presented by Pope and Dean (1986) to develop a relationship for 

 expected morphological response as a function of the segment- to -gap ratio: 



11.72 - 0.41- 



(24) 



where Ig is the beach response index, coded as follows: 

 I3 = 1 permanent tombolo formation 

 I5 = 2 periodic tombolos 

 Ig = 3 well-developed salients 

 Ig = 4 subdued salient 

 Ig = 5 no sinuosity 



18 



