§4 



DISCOVERY REPORTS 



found at the point at which the coldest part of the Antarctic water sinks below the level 

 of 200 m. (see Deacon, 1933, p. 192). Applying these criteria to the data given in the 

 Station Lists (Discovery Reports, vols. 111 and iv) the following can be quoted as the 

 stations nearest the convergence in each line of observations made across it. The 

 position of the convergence is shown by an arrow: sub-Antarctic stations are above 

 the arrows and Antarctic stations below them. 



WS 139 Cold layer at 750 m. 

 WS 140 Cold layer at 200 m. 



1927-28 



WS 205 Cold layer indistinct. 

 WS 204 Cold layer at 200 m. 



1928-29 



WS 253 Cold layer at 750 m. 



WS 254 Cold layer at 100 m. 



WS317 Cold layer indistinct. 



WS 316 Cold layer at 80 m. 



WS 405 Cold layer indistinct. 



WS 404 Cold layer at 150 m. 



WS 412 No temperature records. 



>WS 413 No temperature records. 



WS 414 No temperature records. 



WS 431 Faint minimum at 600 m. 



> WS 430 Faint minimum at 400 m. 



WS 429 Cold layer at 200 m. 



WS 437 Cold layer indistinct. 



►WS 436 No temperature records. 



WS 435 Cold layer at 150 m. 



WS 467 No temperature records. 



■»WS 466 No temperature records. 



WS 465 No temperature records. 



WS 468 Cold layer indistinct. 



->WS 469 Cold layer at 200-300 m. 



WS 470 Cold layer at 150 m. 



St. 385 Cold layer indistinct. 



St. 384 Cold layer at 200 m. 



St. 389 Surface temperature 4-35° C. 



■»St. 390 Surface temperature 4-85° C. 



St. 392 Surface temperature 3-90° C. 



1929-30 



WS ^20 Faint minimum at 600 m. 



WS 521 Cold layer at 200 m. 



WS 530 Cold layer indistinct. 



WS 529 Cold layer at 150 m. 



St. 396 Surface temperature 7-45° C. 

 St. 394 Surface temperature 4-15° C. 



1930- 



Cold layer indistinct. 

 Cold layer at 100-150 m. 



Surface temperature 5-14° C. 

 Surface temperature 4*85° C. 

 Surface temperature 5-80° C. 

 Surface temperature 3-40° C. 



St. 650 Cold layer indistinct. 



St. 649 Faint minimum at 400 m. 



St. 648 Cold layer at 80 m. 



St. 655 Faint minimum at 800 m. 



St. 656 Cold layer at 300 m. 



St. 657 Cold layer at 150 m. 



