CONTENTS--Continued 



Page 

 APPENDIX 



D BOCA RATON ANNUAL WIND ROSES. . „ 137 



E BOCA RATON ANNUAL WAVE HEIGHT ROSES, 1969 TO 19 73 . . . . 143 



F MSL SHORELINE CHANGES BY PROFILE LINE , . . . 149 



G SUBAERIAL PROFILE VOLUME CHANGES BY PROFILE LINE 158 



H SUBAQUEOUS PROFILE VOLUME CHANGES AT BOCA RATON BY 



PROFILE LINE 167 



TABLES 



1 Breaker direction distributions from protractor method 43 



2 "Normal" breaker approach frequency for visual methods 46 



3 Longshore transport estimates . ..... o. . 52 



4 Storm-induced beach changes . o • = „ . , . » . . 63 



5 Rates of change on three southeast Florida beaches 100 



FIGURES 



1 Map of study area » , 12 



2 Offshore profiles at the three study sites 14 



3 Typical beach profile shapes „ 15 



4 View north at Jupiter site, 6 May 19 70; 2 hours before high 



tide . . . . „ 16 



5 View north at Boca Raton site, 4 May 19 70; low tide 18 



6 Coquina exposure about 2 miles south of the Boca Raton site, 



15 May 1974; low tide , 18 



7 Dune leveling at Boca Raton site, 7 May 1969; midtide, 



falling 19 



8 View north at Hollywood site, 5 May 19 70; midtide, rising ... 21 



9 Average direction, duration, and velocity of winds for 1 



year at West Palm Beach a = 22 



10 Accumulative count of hurricane and tropical storm tracks 



passing the coast (1871 to 1973) 23 



