d. Events were selected from each of the ensembles to be 
simulated by the storm surge model. 
e. The storm surge model was calibrated and verified for the 
study area. 
f. Each of the selected northeaster and hurricane events was 
simulated by the storm surge model to produce a time history 
of surge plus tide water levels throughout the study area. 
g. At various locations throughout the study area the maximum 
still water level produced by each simulated event was 
assigned the probability represented by that event. After all 
selected events were simulated, the resultant maximum total 
water levels and corresponding event probabilities were used 
to create stage-frequency curves. 
Review of the FIMP Study 
187. Since the present study area lies within the geographical boun- 
daries of the FIMP study, this previous project served as a "parent" study. 
The present study used techniques from FIMP to refine and extend results into 
areas which were outside the initial FIMP study area (New Jersey coast) or not 
modeled in FIMP (Shrewsbury and Navesink River basins). Due to the dependence 
of the present study on FIMP, the following short review will be provided. 
188. The FIMP study investigated the frequency of storm plus tide water 
levels along the coast and within the bays of southern Long Island, New York. 
In order to model storm surge it is customary to extend the computational grid 
beyond the edge of the continental shelf into deep water. Since it is also 
desirable to have small cell sizes in areas of interest, a large number of 
grid cells may be necessary to model a study area using a single grid. Conse- 
quently, in regions with a wide continental shelf, as in FIMP, a two-grid 
system is often developed. A global grid with coarse resolution extends 
throughout the study area and past the edge of the continental shelf while a 
nearshore grid, with a much finer resolution, covers only the immediate study 
area. A storm is first simulated on the global grid. Then, using water sur- 
face fluctuation time-histories computed on the global grid as boundary values 
for the nearshore grid, the storm event simulation is made for the immediate 
study area. For FIMP, the global grid covered the New York Bight from a point 
south of Atlantic City, New Jersey, to beyond Cape Cod, Massachusetts, includ- 
ing New York Harbor and Long Island Sound. The global grid encompassed the 
present study area but did not resolve the Shrewsbury and Navesink Rivers. 
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