65 1» 

 57*S+ 



61" W 

 +57'S 



se-s^ 



Vl 



/ 



5e-s+ 



59-S+ 

 6S*W 



+ 59'S 



65° W 



— ss-s 



-eo-s 



Figure 19. — Instrument array deployed in Drake Passage in 

 February 1977. Current meter location, (•); pressure 

 recorder moorings (A); X and Y, lines of bearing from 

 true north for aligning instruments. 



In 1979, a S DRAKE (Second Dynamic Response and 

 Kinematics Experiment) project is planned. 



ISOS Data 



ISOS data are available from NO DC as follows: 



Figure 18. — Evolution of the polar front. Shown contoured 

 is the boundary between antarctic waters and the inter- 

 leaving regime of the frontal zone. Times are coordinated 

 universal (CUT), a. February 29, 0130 to March 5, 1830, 

 solid line; March 8, 1330 to March 9, 1540, dashed line, 

 b. March 16, 0000 to March 20, 2359 solid line; March 

 21, 0000 to March 26, 2359 dashed line; March 27, 

 0000 to March 30, 2359, plus line. c. March 31, 0000 to 

 April 3, 2359 solid line. April 4, 0230 to April 5, 1315 

 dashed line. Solid symbols represent observations from 

 the YELCHO, open from the THOMPSON. 



NODC Accession No.: 77-0058 



Organization: Texas A & M University 



Investigator: S. Patterson 



Grant No.: NSF OCE74-14941 A02 



Project: F DRAKE 76 



Data: 571 Surface Temperatures, salinities, and silicates taken 

 aboard A.G.S. Yelcho cruises F DRAKE leg 1, February 

 27, 1976 to March 13, 1976 and leg 2, March 22, 1976 to 

 April 8, 1976 in Drake Passage. NOTE: 571 XBT logs 

 and strip charts were sent to FNWC, Monterey, for digitiz- 

 ing. 



35 



