EM 1110-2-1100 (Part II)
30 Apr 02
Figure II-8-6.
Example wind rose (Leffler et al. 1990)
(a) Extreme wind speeds can conveniently be analyzed with the ACES extremal significant wave height
analysis application (using wind speeds in place of wave heights) or with more traditional graphical methods.
However, wind records at project sites often cover a very limited time period, and extrapolation to rare events
may be difficult. Extreme records from any nearby, long-term wind stations may be transferrable to the
project site with due consideration of differences between locations. Also, a simple approach using monthly
extreme wind speeds may be helpful in conjunction with limited data sets (Simiu and Scanlan 1986). By this
approach, based on the assumption that extreme wind speeds follow the FT-I distribution function,
Hydrodynamic Analysis and Design Conditions
II-8-15
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