. Coastal processes at Sea Bright to Ocean Township, New Jersey. Coast changes; Beach erosion. 30 20 - PROFILE LINE 140 20 JUN 85 10 o -10 -20 -30 -40. ' I I ' I 'I'll' ' ' ' -500 0 500 1000 1500 2000 2500 3000 3500 DISTANCE (FT) Figure 29. Profile 140 represent a beach with a high dune but with no protective seawall. This case was utilized to demonstrate the possibility of unrestricted dune recession. Profile 140 is located in Block 12 (North Long Beach). The average rate of shoreline position change in this area ( m/yr) exceeds that of all other blocks for the 1953-1985 time period (Tab
. Coastal processes at Sea Bright to Ocean Township, New Jersey. Coast changes; Beach erosion. 30 20 - PROFILE LINE 140 20 JUN 85 10 o -10 -20 -30 -40. ' I I ' I 'I'll' ' ' ' -500 0 500 1000 1500 2000 2500 3000 3500 DISTANCE (FT) Figure 29. Profile 140 represent a beach with a high dune but with no protective seawall. This case was utilized to demonstrate the possibility of unrestricted dune recession. Profile 140 is located in Block 12 (North Long Beach). The average rate of shoreline position change in this area ( m/yr) exceeds that of all other blocks for the 1953-1985 time period (Table D18), suggesting that beach mate- rial has been available for transport. Average grain size is mm for both the 1953 and 1985 surveys (Table D19). A coefficient of A = m^'^^ was computed from offshore profile data. This value corresponds to a sediment diameter of mm. 161. Case D. Profile 186, shown in Figure 30, was selected as an ex- ample of a low-elevation dune unprotected by a seawall. This profile is located in the Deal south block, along which the average rate of shoreline position change (1953-1985) was m/yr (Table D18). Average grain sizes of Block 19 for the 1953 and 1985 surveys were in the range of mm (Table D19), indicating the availability of sediment for transport. An A-value of m^'^ ^^s computed for this profile, corresponding to a sedi- ment diameter of mm. 84. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Kraus, Nicholas C; U. S. Army Engineer Waterways Experiment Station; Coastal Engineering Research Center (U. S. ); United States. Army. Corps of Engineers. New York District. [Vicksburg, Miss. : U. S. Army Engineer Waterways Experiment Station ; Springfield, Va. : available from National Technical Information Service]
Size: 2001px × 1249px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookcollectionameri, bookcollectionbiodiversity
