Volume 9, No. I (Continued) 



A Comparison of Deep Water Wave Fo-ecasts by the Pi arson-Neumann, the 

 Darbyshire, and the Sverdrup-I^unk-Bretschneider [Methods with Recorded 

 Waves for Point Argue! lo, California for 26-27 October 1950 



The relatively new Pierson-Neumann or Wave Spectra Method for 

 forecasting resulted in higher average wave heights than the other 

 methods, and even higher heights than were recorded by the wave 

 gage were indicated for part of the storm duration. Difficulties 

 encountered in application of the new method and probable sources 

 of error are discussed. Written by Robert F. Dearduff, Beach 

 Erosion Board staff. 



Status of Sand Bypassing Plant at Sa I i na Cruz Harbor, Isthmus of 

 Tehuantepec, Mexico 



A brief report on the general progress of this bypassing plant 

 since 1952. Measures taken to retard the flow of sand to this plant 

 are described. 



Volume 9, No. 2 - Apri I 1955 



Sand Bypassing at Hillsboro Inlet, Florida 



A plan to be accomplished by local interests for maintaining 

 navigation facilities in the inlet and supplying sand to nourish 

 downdrift beaches under the same operation is described. Written 

 by Thelbert K. Hodges. 

 Volume 10 - July 1956 



Wind Distribution Over Sea Waves 



A translation made at the University of California of a paper 

 by Hans Ul r ich Rol I , originally pub I ished in German in I 948 in 

 Naturwissenschaften. Wind velocity measurements In the air layer 

 immediately adjacent to the water surface were made simultaneously 

 with wave measurements in shallow water of the tidal flats off 

 Neuwerk Island in the North Sea. Transformation of wind energy to 

 waves on the basis of the measurements is discussed in relation to 

 theory and model studies by others. 



Beach Erosion at Durban, South Africa 



A presentation of information obtained from correspondence 

 with Colonel David E. Paterson, Beach Consultant to the City 

 Council of Durban. A description (with photographs) of a beach 

 erosion problem downdrift from harbor entrance structures and of 

 efforts by local people to alleviate the problem, including sand 

 bypassing, is presented. 



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