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1. REPORT NUMBER 



TP 77-7 



2. GOVT ACCESSION NO 



3. RECIPIENT'S CATALOG NUMBER 



4. TITLE (and Subtitle) 



EVALUATION OF THE COMPUTATION OF WAVE DIRECTION 

 WITH THREE- GAGE ARRAYS 



5. TYPE OF REPORT & PERIOD COVERED 



Technical Paper 



6. PERFORMING ORG. REPORT NUMBER 



7. AUTHORfsJ 



Dinorah C. Esteva 



8. CONTRACT OR GRANT NUMBERfs; 



9. PERFORMING ORGANIZATION NAME AND ADDRESS 



Department of the Army 



Coastal Engineering Research Center (CERRE-CO) 



Kingman Building, Fort Belvoir, Virginia 22060 



A31462 



n. CONTROLLING OFFICE NAME AND ADDRESS 



Department of the Army 



Coastal Engineering Research Center 



Kingman Building, Fort Belvoir, Virginia 22060 



12. REPORT DATE 



July 1977 



13. NUMBER OF PAGES 

 123 



14. MONITORING AGENCY NAME ft ADDRESSfff d///oren( from Controlling Office) 



15. SECURITY CLASS, (of this report) 



UNCLASSIFIED 



16. DISTRIBUTION ST ATEMENT fo/ this ReporO 



Approved for public release, distribution unlimited. 



17. DISTRIBUTION STATEMENT (of the abetract entered In Block 20, If different from Report) 



18. SUPPLEMENTARY NOTES 



19. KEY WORDS (Continue 



everae aide If necessary and Identify by block i 



Pt. Mugu, California 

 Three- gage arrays 

 Wave direction 



tiber) 



Wave measurement 

 Wave train 

 Waves 



20. p^BSm ACT C^ant£aue am r^v^ram e£l£o ff nmce-aaa^ and Identify by block number) ^ , . , . , 



A description of the collection and analyses of data obtained with an 

 array of five pressure sensors near Pt„ Mugu, California, is presentedo The 

 10 three-gage arrays possible with five gages are used to compare redundant 

 values of the direction of wave propagation. The dependence of directional 

 determination on array orientation relative to incident wave direction and 

 wavelength at the array site is shown by calculations based on simulated 

 narrow-banded wave trains. Directional results from the field study indicate 



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UU , J, 



M73 



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