PREFACE 



This report is published to provide coastal engineers with a further 

 analysis and evaluation of the two-dimensional coastal movable-bed scale- 

 model relationship proposed by Noda (1971, 1972). The work was carried 

 out under the coastal processes program of the U.S. Army Coastal Engi- 

 neering Research Center (CERC) . 



The report was prepared by J. Ian Collins, Tetra Tech, Inc., Pasadena, 

 California, under CERC Contract No. DACW72-72-C-0024, and by Charles B. 

 Chesnutt, CERC. 



The work of Messrs, A. Yuen and C. Pettit, who conducted the experi- 

 ments, and Mr. G. Smith, who handled the data reduction, is gratefully 

 acknowledged. The authors express their appreciation to Drs. E. Noda, 

 C. Sonu, and B. LeMehaute, who contributed much to this study through 

 many useful discussions. 



Charles B. Chesnutt was the CERC contract monitor, under the general 

 supervision of Dr. C.J. Galvin, Jr., Chief, Coastal Processes Branch, 

 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. 



:va 



f^OHN H. COUSINS 

 Colonel, Corps of Engineers 

 Commander and Director 



