UNCLASSIFIED 



Security Classification 



DOCUMENT CONTROL DATA -R&D 



(Security classification ol title, body ol abstract and indexing annotation niuat be entered when the 



trail report It clatettled) 



ORIGINATING ACTIVITY fCofporjf* Author; 



U.S. Naval Oceanographic Office 

 Oceanographic Prediction Division 

 Marine Sciences Department 



2«. REPORT SECURITY C l_ A SSI F I C A Tl Or 



None 



N/A 



3 REPOR1 



Detailed Thermal Structure of the Western Gulf Stream Region 



DESCRIPTIVE NOTES (Type of report and inclusive dates) 



Technical Report, ASWEPS Report No. 15 



5. AU THORISI (First I 



iddle initial, last name) 



Bertrand J. Thompson 

 William H. Gemmill 



6 REPORT DATE 



December 1968 



78. TOTAL NO. OF PAGES 



25 



'b. NO. OF REP 



7 



CONTRACT OR GRANT NO. 



b. PROJEC T NO. 



9a. ORIGINATOR'S REPORT NUMBERIS) 



TR- 210 



3b. OTHER REPORT NOIS) (Any othe 

 this report) 



ASWEPS Report No. 15 



0. DISTRIBUTION STATEMENT 



This document may be further distributed by any holder only with specific 

 prior approval of the Naval Oceanographic Office. 



I 1 SUPPLEMENT/ 



I 2. SPONSORING MILI 



U.S. Naval Oceanographic Office 

 Washington, D.C. 20390 



3. ABSTRAC T 



Several thermal structure characteristics observed by oceanographic 

 research vessels and aircraft are displayed and discussed. A series of 

 airborne radiation thermometer (ART) flights conducted in April 1967 show 

 detailed structure and pattern changes near the northern boundary of the 

 Gulf Stream. Thermal changes were related to two contrasting weather 

 patterns . 



Since ART data define only surface temperature patterns, a ship 

 survey was conducted in October and November 1967 to obtain vertically 

 as well as horizontally distributed data. The ship survey was repeated, 

 obtaining a total of almost 1,000 BT's. Cross sections of the data show 

 that advection indicated by the ART survey extends to considerable depth. 

 Three major features were observed: a meander developing in the Gulf 

 Stream, a cold ring south of the stream, and a warm eddy north of the 

 stream. The general flow was eastward, but a few features were found to 

 drift westward. 



DD 



1473 



[PAGE 1 ) 



UNCLASSIFIED 



5/N 0101- 807- 680 1 



Security Classification 



