40. The 18 March 1973 storm produced the largest range of volume 

 changes varying from a loss of -37.1 m^/m at profile line 18 to an accretion 

 of 57.4 m^/m at nearby profile line 16. The median change was only 



-2.5 m^/m. The largest change resulted from the 17 December 1970 storm which 

 caused a median volume change of -16.7 m^/m and a single change -48.2 m^/m on 

 profile line 4. During this storm the peak water level was 1.6 m. 



Long Beach Island, New Jersey 



41. Long Beach Island (Figure 11) is oriented N29 degrees E with a 

 predominate easterly wave and wind exposure. The long, narrow island is 

 bordered by Barnegat Inlet on the north and Beach Haven Inlet on the south. 

 Three shallow bays, Barnegat Bay, Manahawkin Bay, and Little Egg Harbor, 

 separate the island from the mainland. Net longshore transport is toward the 

 south at an estimated rate of 115,000 m^/year (Miller, Aubrey, and Karpen 

 1980). 



42. A continuous dune system with crest heights of 5 to 8 m runs the 

 length of the island. Average foreshore beach slope is 1:15. Beach cusps 

 and ridge and runnel features are common. More than 100 groins have been 

 constructed along the island in an effort to reduce erosion. All profile 

 lines are located within 250-m of a groin (Miller, Aubrey, and Karpen 1980). 



43. Long Beach Island was greatly affected by storms, experiencing a 

 median poststorm profile change for the 10 storms studied of -16.0 m^/m. The 

 profile changes varied considerably both along the beach and between storms. 

 Profile line 10 eroded consistently, having a median storm change of 



-22.0 m^/m. The southern profile lines (18 through 21) tended to be more 

 stable. 



44. Median shoreline change for the 10 storms was only 1.2m, 

 indicating general shoreline stability. This small movement in the msl 

 intercept is interesting considering the large volumetric losses. The stable 

 shoreline may have resulted from the rapid poststorm recovery such as 

 reported by Birkemeier (1979) for this site. This might also explain why 

 most of the erosion occurred between the 1.0- and 2 . 5-m contours. Median 

 slope changes were small but indicated a slight flattening of the foreshore. 



45. Storm changes at Long Beach Island were more variable than at the 

 other sites. The storms with the largest magnitude did not necessarily 



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