UNCLASSIFIED 



Security ClaBSification 



DOCUMENT CONTROL DATA -R&D 



(S«ctirifv cttteslllration o/ f/f/c. body of abslracl nnd indcwlng . 



cd whfti fh- nvfrmji Tftpnf It c lm»mUi9dj 



1 ORION A Tl NG * C T I 



I T y (CorpOTmt« mulhor) 



Naval Coastal Systems Laboratory 

 Panama City, Florida 32401 



fi«. Of: «'o« T lecuniTy c l * »«i f i c * t i ok 



UNCLASSIFIED 



2b. CROUP 



3 REPORT TITLE 



THE DIRECTIONAL ANALYSIS OF OCEAN WAVES: AN INTRODUCTORY DISCUSSION 



4 DESCRIPTIVE f^OJES (Type ol roporl mnd InclualvB dmlut) 



Informal 



8- AUTHOR(S) (FIrot nmmm, middle tnlttel, tmel name) 



Carl M. Bennett 



e REPOR T DATE 



December 1972 



7«. TOTAL NO OF PAGES 



83 



76. NO OF RE F5 



12 



8a. CONTRACT OR GRANT NO. 



b. PROJEC T NO 



ea. ORIGINATOR'S REPORT NUMBER(3| 



NCSL 144-72 



'■ Task SWOC SR 004 03 01, Task 0582 

 d. ZR 000 01 01 (0401-40) 



Ob. OTHER REPORT NO(S) (Any othmr numb«r« thmt mmy be mmmi^vd 

 thim report) 



First Edition NSRDL/PC 3472 



10. DISTRIBUTION STATEMENT 



Approved for Public Release; Distribution Unlimited. 



II. SUPPLEMENTARY NOTES 



Second edition. This report was 

 originally issued in September 1971 

 as NSRDL/PC Report 3472. 



12- SPONSORING MILITARY ACTIVITY 



Commander 



Naval Ship Systems Command (OOVlK) 



13. ABSTRACT 



An introductory discussion of the mathematics behind the directional 

 analysis of ocean waves is presented. There is sufficient detail for a 

 reader interested in applying the methods; further, the report can serve 

 as an entry into the theory. The presentation is basically tutorial but 

 does require a reasonably advanced mathematical background. Results of 

 a program for the measurement of directional ocean wave bottom pressure 

 spectra are included as an appendix. This second edition makes corrections 

 to the first and adds some details of an iterative directional analysis 

 method. 



DD /Nr-.tATS 



UNCLASSIFIED 



Security Classification 



