EM 1110-2-1100 (Part II)
30 Apr 02
Figure II-5-25.
Hurricane Gloria track offshore of Delaware and New Jersey (Jarvinen and Gebert
1986)
(d) CHL recommends the empirical simulation technique and uses this statistically based method for
all frequency-related studies. This technique has been adopted because it generates multiple data sets of
events from historical data and then generates not only frequency-of-occurrence relationships, but also error
bands associated with those determinations. When computer facilities are not available for application of the
EST, the other approaches can be successfully used; however, each has limitations which should be
considered. All three approaches are briefly discussed in the following paragraphs. Because the historical
and synthetic approaches are covered in great detail in USACE (1986) and USACE (1985), only their basic
assumptions are presented.
Water Levels and Long Waves
II-5-45
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