COOTEOTS 



Page 



I INTRODUCTION 5 



II GENERATION OF WATER MOTION AND DIRECTION OF FLOW 6 



1. General ........ . 6 



2. Examples o£ Wind- Generated Currents 8 



3. Modification of Currents by the Rotation of the Earth ... 9 



4. Wind- Generated Surface Waves 10 



5. Longshore Current Generation 11 



6. Water Motions Generated by Sharp Changes in 



Atmospheric Pressure 11 



7. Lake Tides 12 



8. Effects of Water Stratification ......... 13 



III CHARACTERISTICS OF FLOW 12 



IV WATER LEVELS AND PERIODICITY 13 



V GENERATION AND MOVEMENT OF BED FORMS 14 



VI SEDIMENT H^RAINMENT AND ALONGSHORE TRANSPORT 17 



1. General 17 



2. Bed Movement in Unidirectional Flow 17 



3. Bed Movement in the Presence of Waves 17 



VII BEACH EROSION - EFFECT OF STRUCTURES 18 



LITERATURE CITED 20 



BIBLIOGRAPHY 26 



