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READ INSTRUCTIONS 

 BEFORE COMPLETING FORM 



1. REPORT NUMBER 



CETA 82-7 



2. GOVT ACCESSION NO. 



3. RECIPIENT'S CATALOG NUMBER 



4. TITLE fand Sub(i(/e; 



PREDICTION OF NEARSHORE WAVE TRANSFORMATION 



5. TYPE OF REPORT & PERIOD COVERED 



Coastal Engineering 

 Technical Aid 



6. PERFORMING ORG. REPORT NUMBER 



7. AUTHORfsJ 



Jon M. Hubertz 



8. CONTRACT OR GRANT NUMBERfsJ 



9. PERFORMING ORGANIZATION NAME AND ADDRESS 



Department of the Army 



Coastal Engineering Research Center (CERRE-CO) 



Kingman Building, Fort Belvoir, VA 22060 



A31592 



11. CONTROLLING OFFICE NAME AND ADDRESS 



Department of the Army 



Coastal Engineering Research Center 



Kingman Building, Fort Belvoir, VA 22060 



12. REPORT DATE 



December 1982 



13. NUMBER OF PAGES 

 13 



M. MONITORING AGENCY NAME ft ADDRESSf// d///oren( from ControWng Ollice) 



15. SECURITY CLASS, (ol thia report) 



UNCLASSIFIED 



16. DISTRIBUTION STATEMENT fo/ this ReporO 



Approved for public release; distribution unlimited. 



17. DISTRIBUTION STATEMENT (of the abatract entered In Block 20, II diflerent Irom Report) 



18. SUPPLEMENTARY NOTES 



19. KEY WORDS fConf/nu 



eery and Identity by block number) 



Computer programs 

 Irregular wave conditions 



Reflection 

 Refraction 



Shoaling 



Wave transformation 



I. ABSTRACT CCantbxu* ea rerermm «fd> H nxceemary aad Identity by block number) 



The DHI System 21 Mark 8 numerical model for the prediction of both long 

 and short waves is being used in certain studies of coastal engineering 

 problems. Procedures are discussed for using the model to predict nearshore 

 short wave transformations. An example is presented showing the combined 

 effects of refraction, shoaling, reflection, and diffraction. Predicted 

 model results are compared to measured wave heights at the Coastal Engi- 

 neering Research Center's Field Research Facility in Duck, North Carolina. 



DO ^^ 



M73 



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