were collected simultaneously with wave data (routinely every 6 hr and hourly 
during storms). 
Wind Data 
Collection 
47. Prior to 30 March 1982, wind speed and direction were continuously 
recorded on chart records. After that date, the analog signal was interfaced 
to the computer, and wind and wave data were collected simultaneously. 
Analysis 
48. The wind conditions prior to 30 March 1982 were determined by esti- 
mating the average speed and direction values from 10-min sections of the 
chart records four times per day. After 30 March, mean wind speed and direc- 
tion were computed from 20-min digital data samples. 
49. Annual, seasonal, and monthly joint probability distributions of 
wind speed versus direction were computed. Wind speeds were resolved into 
1-m/sec intervals, while the directions were at 22.5-deg intervals, i.e., 
16-point-compass-direction specifications. These distributions are presented 
as wind "roses". The length of the "petal" represents the frequency of wind 
blowing from the specified direction, and the width of the "petal" is indica- 
tive of the speed in 3-m/sec intervals. Resultant directions and speeds were 
also determined by vector averaging the data. 
Visual Data 
50. Daily visual observations were made near 0700 hours to supplement 
instrumented data collection. These include observations of surface current 
speed and direction at (a) the seaward end of the pier, (b) the midsurf posi- 
tion of the pier, and (c) the beach 500 m updrift of the pier. Surface cur- 
rents were determined by observing the movement of dye on the water surface. 
Also measured were the wave approach angle at the seaward end of the pier, the 
breaker angle, and the breaker type nearshore. 
Bathymetric and Pier Surveys 
Collection 
51. Profiles were obtained monthly and after storms using the Coastal 
Research Amphibious Buggy (CRAB), a 10.7-m-tall amphibious tripod, and a Zeiss 
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