CONTENTS 



Page 



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



I INTRODUCTION 7 



1. General Coastal Geology and Morphology 7 



2. Lake Levels 11 



3. Previous Studies 13 



II BEACH MORPHOLOGY AND PROCESSES 14 



1. Morphology 14 



2. Processes 15 



III METEOROLOGICAL DATA 16 



1. Weather Patterns 16 



2. Ice and Its Effects on the Coast 20 



IV METHOD 23 



1. Profiling Method 23 



2. Profiling Format and Dates Visited 23 



3. Data Limitations 24 



V BEACH PROFILE CHANGES 24 



1 . Change at Each Location 24 



2. Discussion of Profile Changes 34 



3. Sediment Budget 39 



VI AERIAL PHOTOGRAPHY ANALYSIS OF COASTAL CHANGES 39 



1. Data Collection 45 



2. Lake Level During Period of Aerial Photography 45 



3. Aerial Photo Data 45 



4. Summary 51 



VII NEARSHORE BOTTOM PROFILES 51 



1. Data Collection 51 



2. Nature of the Profiles 52 



3. Effects of Longshore Bars on Beach Changes 55 



VIII BEACH SEDIMENTS 59 



1. Collection and Analysis of Sediments 59 



2. Textural Nature of Beach Sediments 59 



IX SUMMARY - AND CONCLUSIONS 61 



LITERATURE CITED 62 



TABLES 



1 Location of sites along profile line 9 



2 Cyclonic weather systems across Lake Michigan 18 



