PREFACE 



Tliis report is published to provide coastal engineers with the empir- 

 ical results of statistical variations in wave energy spectral estimates 

 for 12 intervals of wave data measured during Hurricane Carla in 

 September 1961. The measurements were made on a Chevron Oil Company 

 platform in the Gulf of Mexico at a water depth of 100 feet. The work 

 was carried out under the wave mechanics program of the U.S. Army Coastal 

 Engineering Research Center (CERC) . 



This report is published, with only minor editing, as received from 

 the contractor; results and conclusions are those of the author and do not 

 necessarily represent those of CERC or the Corps of Engineers. 



The report was prepared by Leon E. Borgman, University of Wyoming, 

 Laramie, Wyoming, under CERC Contract No. DACW72-72-C-0001 . Dr. D. Lee 

 Harris, Chief, Oceanography Branch, was the CERC contract monitor for 

 the report, under the general supervision of Mr. R.P. Savage, Chief, 

 Research Division. 



Comments on this publication are invited. 



Approved for publication in accordance with Public Law 166, 79th 

 Congress, approved 31 July 1945, as supplemented by Public Law 172, 

 88th Congress, approved 7 November 1963. 



7<I-Q~ 



JOHN H. COUSINS 



Colonel , Corps of Engineers 



Commander and Director 



