CONTENTS 



FIGURES --Continued 



Page 



51 Wave approach direction on longshore bars and on the beach, obtained 



from an analysis of the 20 aerial photo sets of Ludlam Beach 64 



52 Peat exposure at profile line 5, 22 December 1977 65 



53 Shoreline changes near Corson Inlet 66 



54 Shoreline changes near Townsend Inlet 67 



55 Minimum inlet width, Townsend and Corson Inlets, measured at the 



narrowest throat position 68 



56 Inlet throat migration at Townsend and Corson Inlets, north or south 



along a fixed base line oriented approximately north-south across 



the narrowest throat section in 1949 69 



57 Seaward offset of inlet shoreline as obtained from aerial photos ... 70 



58 Channel position at Townsend and Corson Inlets 71 



59 Variation in channel orientation seaward of the barrier islands. ... 72 



60 Channel length from center of inlet throat to seawardmost breaking 



wave line on ebb tidal shoals 72 



61 Plan area of visible ebb tidal shoals as obtained from aerial photos . 73 



62 Cumulative land area changes at Corson Inlet, 1949-74 74 



63 Gross and net longshore transport rates at Sea Isle City, obtained 



using the energy flux method 76 



64 Volume moving in an alongshore sand wave, showing a significant 



decrease south of Corson Inlet 78 



65 Monthly wave power of waves exceeding 4 feet in height reaching the 



Atlantic City shore, showing the relationship between wave power and 

 beach volume change 80 



66 Yearly wave power for -waves exceeding 4 feet in height at Atlantic 



City, showing the relationship between yearly wave power and yearly 



sand volume change above MSL 81 



67 The relationship between the mean net yearly volume change to the 



seasonal range of sediment volume change 82 



68 Sand volume change as a function of shoreline position change, 



illustrating a relatively consistent ratio along Ludlam Beach .... 86 



69 Correlation coefficients calculated for the regression curves shown 



in Figure 68 87 



70 Mean sand volume changes above MSL which accompany shoreline retreat 



or advance along Ludlam Beach 87 



71 Relationship between net yearly sand volume change and seasonal range 



of sand volume above MSL 91 



72 Schematic of apparent sediment loss volume as the shoreline retreats 



or sea level rises 94 



