UNCLASSIFIED 



Security Classification 



DOCUMENT CONTROL DATA - R&D 



(Socurity clBasitication of title, body ot abstract and indexing annotation must be entered when the overall report ia ctaeaitied) 



1. ORIGINATING ACTIVITY (Corporate author) 



US Naval Underwater Ordnance Station, 

 Newport, Rhode Island 



2a. REPORT SECUHI TY CLASSIFI 



UNCLASSIFIED 



26 GROUP 



3. REPORT TITLE 



Lagrangian Current Measurements in the Northeast Providence Channel 

 and the Tongue of the Ocean, Bahamas, 14 Feb to 6 MAR 1963, 

 Final Report 



4. DESCRIPTIVE NOTES (Type of report and Inclusive dates) 



Final - 14 Feb to 6 Mar 1963 



S AUTHORW (Last name, li rat name, Initial) 



Cook, Gerald S 



6 REPORT DATE 



April 1965 



7a. TOTAL NO. OF PAGES 



7b. NO. OF REPS 



81 



ea. CONTRACT OR GRANT NO. 



b. PROJECT NO. WEPTASK Assignment No 

 RUT0=3E -000/2 19 1/SF099-03-02 



<= and RUZZ-2E-000/219 

 1/R004-03-01 



9a. ORIGtNATOR'S REPORT NUMBERfSJ 



TM No. 327 



9 b. OTHER REPORT NOfS^ (Any other numbers that may be assigned 

 this report) 



to. AVAILABILITY/LIMITATION NOTICES 



Qualified requesters may obtain copies of this report from DDC 



11. SUPPLEMENTARY NOTES 



12. SPONSORING MILITARY ACTIVITY 



BUWEPS - NUOS 



13. ABSTRACT 



The Naval Underwater 

 stallation of a weapons 

 edge of the environmenta 

 Parachute drogues were p 

 tracked to obtain water 

 nel and the Tongue of th 



Although water motio 

 water motion in the Nort 

 what dynamic regime exis 

 in the channel (and vice 

 gradients generally deer 

 idence Channel to the To 

 both transects located i 

 ity in current speed exh 

 bulent current structure 

 bulent in nature. It is 

 structure over short per 



It will therefore be 

 on the AUTEC weapons ran 

 that the dynamic oceanog 

 with tracking data on th 



Ordnance Station is responsible for the in- 

 range in AUTEC, This work requires a knowl- 

 1 factors affecting deep water tracking, 

 laced at depths from 10 to 1500 meters and 

 current data in the Northeast Providence Chan- 

 e Ocean, Bahamas. 



n in the Tongue is of necessity related to 

 heast Providence Channel, it is not apparent 

 ts in the Tongue for a given dynamic regime 



versa) . Current speed and vertical current 

 eased in magnitude from the Northeast Prov- 

 ngue. There was a net in-channel flow along 

 n the Northeast Providence Channel. Variabil- 

 ibited by individual drogues indicated a tur- 

 The circulation in the Tongue is also tur- 



extremely difficult to predict the current 

 iods (two or three tidal cycles) . 



necessary to monitor current information 

 ge during tracking experiments in order 

 raphic environment can be correlated 



e test vehicles. 



DD /.?N^'2. 1473 



UNCLASSIFIED 



