40 







^A 



Cumulotive 

 Shoreline 



/ 



Po 



sition 







O 



- 20 



V- "^ 







- 



Betwcer 

 o 



/ 







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£= 

 O 



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A 







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1 40 



20 :;: 



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-40 



I I I I I 1 



1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 

 (Yr) 



Figure 38. Yearly shoreline position change and cumulative shoreline 



position at Ludlam Beach, referenced to zero positon in 1962. 



w 



Profile Line 

 S t r a I h m'e r e 



Groins 



-6 -4 -2 2 4 



Mean Yearly Volume Change (ydVft) 



Figure 39. Mean yearly volume change at Ludlam Beach (1962-72), showing 



accretion in the northern part of the Sea Isle City groin field, 



52 



