Section 4. BULLETINS OF THE BEACH EROSION BOARD 



Volume I , No. I - Apr! I 1947 



Test of Aerial Photogrammetry in Making Be-^ch Surveys 



Obtaining topography by plane table and aerial photogrammetry of 

 two barrier islands off the Gulf Coast of Florida (Anna Maria and 

 Long Boat Keys) is discussed and methods compared. 



Laboratory Study of Equilibrium Beach Profiles 



Description of laboratory tank tests to define the influence 

 of wave characteristics in shaping the equilibrium beach profile. 

 Preliminary results are presented. 



Publications of the Board 



The Board's publications are explained, and those published to 

 date are I i sted . 



Vo I ume I , No . 2 - July I 947 



Hydrographic Survey Operations of Field Research Group 



Organization, equipment and operational procedures of a Field 

 Research Group of the Board's staff are described. Hydrographic 

 survey experience of this group is discussed. 



Comparison of Leadline and Echo Sounding Results Using Amphibious 

 Trucks 



A series of underwater bottom profiles were obtained by the 

 Board's Field Research Group utilizing both methods, and compared. 

 The echo sounder method was concluded to be far superior to lead- 

 line, in that it is more accurate, gives more detail, and is 

 considerably faster. 



A Study of Comparative Action of Waves on Model Beaches of 

 Different Scales 



Laboratory tank tests were made to define, with some exactness, 

 the conditions under which a model involving wave action on a moving 

 sand beach can be expected to accurately reproduce the action of the 

 prototype, and how to correct the results if such reproduction is 

 not obtainable. Some preliminary results are presented. 



The Importance of Shore Protection Studies 



The first of a series of four articles delivered by Dr. Martin A, 

 Mason as lectures in the Advanced Course of the Engineer School at 

 Fort Bel voir, Virginia. 



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