CONTENTS 



Page 



CONVERSION FACTORS, U.S. CUSTOMARY TO METRIC (SI) 5 



I INTRODUCTION 7 



II DATA COLLECTION UNDER THE LEO PROGRAM 9 



1. Site Selection 9 



2. Equipment and Supplies 9 



3. Data Collection Methods 9 



III SUMMARY 23 



FIGURES 



1 LEO equipment and supplies 9 



2 Typical completed LEO form 10 



3 Timing the wave period 11 



4 Visually observed estimate of breaker height 11 



5 Protractor on reverse side of LEO form 12 



6 Measurement of wave angle from beach using protractor 13 



7 Measurement of wave angle from pier using protractor 14 



8 Spilling breaker 15 



9 Plunging breaker 15 



10 Surging breaker 16 



11 Spill-plunge breaker 16 



12 Using Dwyer wind meter for windspeed less than 10 miles per hour 17 



13 Using Dwyer wind meter for windspeed greater than 10 miles per hour... 17 



14 Measurement of foreshore slope using Abney hand level 18 



15 Surf zone width 19 



16 Observer marking point of dye injection on beach 20 



17 Observer pacing off distance traveled by dye patch in 1-minute 



period 20 



18 Rip currents 21 



19 Beach cusps i 22 



20 Observer collecting sand sample from foreshore slope 23 



