UNCLASSIFIED 



Security Classification 



Ocean Waves - Acoustic Properties 

 Underwater Noise - Analysis 



l. ORIGINATING ACTIVITY: Enter the name and address 

 of the contractor, subcontractor, grantee. Department of De- 

 fense activity or other organization (corporate author) issuin 

 the report. 



2a. REPORT SECURITY CLASSIFICATION: Enter the ove 

 all security classification of the report. Indicate whether 

 "Restricted Data" is included. Marking is to be in accord- 

 ance with appropriate security regulations. 



26. GROUP: Automatic downgrading is specified in DoD D 

 rective 5200.10 and Armed Forces Industrial Manual. Enter 

 the group number. Also, when applicable, show that optiona 

 markings have been used for Group 3 and Group 4 as author- 

 ized. 



3. REPORT TITLE: Enter the complete report title in all 

 capital letters. Titles in all cases should be unclassified. 

 If a meaningful title cannot be selected without classifica- 

 tion, show title classification in all capitals in parenthesis 

 immediately following the title. 



INSTRUCTIONS 



imposed by security cla 



4. DESCRIPTIVE NOTES: If appropriate, e 

 report, e.g., interim, progre 



red. 



the type of 

 immary, annual, or final, 

 specific reporting period is 



?(s) of author(s) as shown on 

 e, first name, middle initial. 

 h of service. The name of 

 Lite minimum requirement. 



5. AUTHOR(S): Enter the nam 

 or in the report. Enter last nam 

 If military, show rank and branc 

 the principal author is an absolut 



6. REPORT DATE: Enter the d 

 month, year; or month, year. If m 

 on the report, use date of publication. 



la. TOTAL NUMBER OF PAGES: The total page count 

 should follow normal pagination procedures, i.e., enter the 

 number of pages containing information. 



76. NUMBER OF REFERENCES: Enter the total number of 

 references cited in the report. 



8a. CONTRACT OR GRANT NUMBER: If appropriate, ente 

 the applicable number of the contract or grant under which 

 the report was written. 



86, 8c, & &d. PROJECT NUMBER: Enter the appropriate 

 military department identification, such as project number, 

 subproject number, system numbers, task number, etc. 

 9a. ORIGINATOR'S REPORT NUMBER(S): Enter the offi- 

 cial report number by which the document will be identified 

 and controlled by the originating activity. This number mus' 

 be unique to this report. 



96. OTHER REPORT NUMBER(S): If the report has been 

 assigned any other report numbers (either by the originator 

 or by the sponsor), also enter this number(s). 



10. AVAILABILITY/LIMITATION NOTICES: En 





other than thos 



repo 



ign 



of this 



report by DDC is not authorized." 

 "U. S. Government agencies may obtain copies of 

 this report directly from DDC. Other qualified DDC 

 users shall request through 



U. b. military agencies may o 

 report directly from DDC. Othe 

 shall request through 



tain copies of this 

 qualified users 



n of this report is controlled Qual- 

 shall request through 



If the report has been furnished 

 Services, Department of Commerce, for sale to the public, indi- 

 cate this fact and enter the price, if known. 



11. SUPPLEMENTARY NOTES: Use for additional explana- 

 tory notes. 



12. SPONSORING MILITARY ACTIVITY: Enter the name of 

 the departmental project office or laboratory sponsoring (pay- 

 ing for) the research and development. Include address. 



13. ABSTRACT: Enter an abstract giving a brief and factual 

 summary of the document indicative of the report, even though 

 it may also appear elsewhere in the body of the technical re- 

 port. If additional space is required, a continuation sheet shall 





It is highly des 



rable that the 



abstr 



act of class 



ifiec 



reports 



be 



nclassified. Ea 



ch paragraph 



3f the 



abstract sh 



ill ^ 



nd w 



ith 



an 



ndication of the 



military secu 



ity cl 



assiftcation 



of the ir 





lorn 



lation in the pars 



graph, re pre s 



smted 



as (TS). (S) 



(C) 



or 



<U). 





There is no lim 



tation on the 



lengtr 



of the abstract 



He 





eve 



r, the suggested 



length is from 



150 t 



o 225 words 









14. 



KEY WORDS: Key words are 



techn 



ically mean 



ngfu 



1 te 



■ms 



or s 



hort phrases tha 



characterize 



a report and may 



je u 



sed 





index entries for cat 



aloging the re 



port. 



Key words 



nust 



be 





selected so that no 



■ ecurity class 



ificat 



on is requir 



>d. 



Idei 





fier 



s, such as equip 



nent model de 



signa 



ion, trade n 



ame 



mil 



itary 



proj 



ect code name, geographic loc 



ation. 



may be use 



d as 



key 





words but will be followed by an indica 



ion of techr 



ical 



con 





tex 



. The assignment of links, ro 



es, a 



id weights i 



s option 



il. 



UNCLASSIFIED 



Security Classification 



