CONTENTS 



Page 



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



I INTRODUCTION 7 



II DEFINITION OF TERMS 8 



III STUDY AREA 10 



1. Lake Level 14 



2. Lake Ice 15 



3. Storms 15 



4. Waves.. 16 



5. Slope Failure 17 



IV PREVIOUS STUDIES 18 



V PROFILE LINE CHANGES 20 



1. Description of the Data 20 



2. Bluff Recession and Volume Change Measurements 21 



3. Lake Levels and Storms 27 



4. The Effect of Structures 28 



5. Bluff Composition 30 



VI BEACH SEDIMENTS 30 



VII SUMMARY AND DISCUSSION 36 



1. Summary 36 



2. Discussion 37 



LITERATURE CITED 39 



APPENDIX 



A PROFILE CHANGES BETWEEN OCTOBER 1973 AND DECEMBER 1974 43 



B PROFILE LINE DOCUMENTATION AND PHOTOS 55 



TABLES 



1 General profile line characteristics 11 



2 Survey dates 20 



3 Monthly bluff recession, eastern Lake Michigan, August 1970 to 



December 1974 22 



4 Annual bluff and beach volume changes 26 



5 Sediment statistics summary, eastern Lake Michigan (October 1973 



to December 1974) 32 



