. Coastal processes at Sea Bright to Ocean Township, New Jersey. Coast changes; Beach erosion. SANDY HOOK CRITICAL ZONE CALIBRATION: K, = D(; = M MEASURED 197 1 MEASURED I 982 CALCULATED I 982. lOOQ ISDO 2000 LONGSHORE DISTANCE (m) Figure 17. Results of calibration 1971-1982 (maximum constant depth of closure) the same time interval. It should be noted that a value of K^ = is close to the empirical design value of given for the CERC formula in the SPM (Chapter 4, p 4-96). Verification 117. Verification was performed using the measured shorelines for 1932 and 1953. Si
. Coastal processes at Sea Bright to Ocean Township, New Jersey. Coast changes; Beach erosion. SANDY HOOK CRITICAL ZONE CALIBRATION: K, = D(; = M MEASURED 197 1 MEASURED I 982 CALCULATED I 982. lOOQ ISDO 2000 LONGSHORE DISTANCE (m) Figure 17. Results of calibration 1971-1982 (maximum constant depth of closure) the same time interval. It should be noted that a value of K^ = is close to the empirical design value of given for the CERC formula in the SPM (Chapter 4, p 4-96). Verification 117. Verification was performed using the measured shorelines for 1932 and 1953. Simulation of shoreline change for this 21-year time period was accomplished in order to provide independent confirmation of the calibration. Transport parameters K^ and K2 were determined in the calibration with the three aforementioned procedures for specifying the depth of closure. 118. The three resultant simulated 1953 shoreline positions were then visually compared to the measured 1953 shoreline position and the acceptabil- ity of fit indicator Ydiff calculated for each case. Figures 18 and 19 show results obtained for a varying depth of closure and maximum depth of closure, respectively. A minimum Ydiff of 919 m was found between the measured and simulated shorelines for a variable depth of closure. The result using a constant maximum depth of closure was about 10 percent higher. 60. 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]
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