CONTENTS 



Page 



CONVERSION FACTORS, U.S. CUSTOMARY TO METRIC (SI) 6 



I INTRODUCTION 7 



II STUDY AREA 7 



III DATA COLLECTION PROCEDURE 9 



IV DATA ANALYSIS 15 



V RESULTS 16 



1. Short-Term Changes 18 



2. Long-Term Changes 23 



3. Groin Effects 25 



VI DISCUSSION 27 



1. Profile Changes 27 



2. Seasonal Changes and Wave Climate 29 



3. Coastal Engineering Implications 32 



VII SUMMARY 33 



LITERATURE CITED 34 



APPENDIX 



A PROFILE LINE DOCUMENTATION 37 



B PROFILE LINE SURVEY DATA 58 



C MSL SHORELINE CHANGES 102 



D ABOVE MSL UNIT VOLUME CHANGES 113 



E PROFILE ENVELOPES 124 



TABLES 



1 Westhampton Beach groin construction schedule 12 



2 Westhampton Beach storm changes 20 



3 Rates of profile change on Westhampton Beach, 1962-73 25 



4 Rates of profile changes within groin field, 1972-73 27 



FIGURES 



1 Location map 8 



2 View east from profile line 1 10 



4 



