Stage frequency at Monmouth Beach 
223. Stage-frequency results for the Monmouth Beach gage are represen- 
tative of the open-coast stage frequency in the entire project area. Results 
for the Monmouth Beach gage were reported in the FIMP study; however, the set 
of hurricane parameters chosen for the FIMP study did not account for some 
storms which may impact the New Jersey coast. As previously discussed, 54 
storms were modeled to augment those in the FIMP project. The stage-frequency 
curve at Sandy Hook was not significantly altered in the new analysis. The 
curve derived from the new analysis for Monmouth Beach is shown in Figure 73. 
224. Wave setup is not included in the surge modeling, and the wave 
effect contribution to total water level can be significant. To include this 
effect at Monmouth Beach, the same procedures used in the FIMP study were 
adopted (as discussed earlier). The frequency curve for Monmouth Beach was 
discretized into seven intervals according to flood heights. All storms con- 
tributing to a given part of the stage-frequency curve were analyzed and an 
average maximum wind speed (and, hence, an average significant wave height) 
was asSigned to the mid-point of each interval. Wave setup was calculated for 
each interval and curves were fitted through these data points to display wave 
effect contributions. The resulting curves are also presented in Figure 73. 
225. The accuracy of wave effect results (Figures 71-73) suffers 
because of the simplifying assumptions made as well as a lack of information 
available as to the physical processes involved. These results do give a good 
indication of the magnitude of wave influence on back-bay and open-coast stage 
frequencies. 
133 
