60° 



160° 



170° 180° 



170° 



60° 



1 1 I 1 | 1 



1 1 1 1 1 1 1 1 | 1 1 1 1 1 1 1 1 



1 1 1 1 1 1 1 1 1 



i | i i i 





KEY TO ICE SYMBOLS 





(COVERAGE (CO.'ICEinRATION)l | AGE 1 





W\ =my taaa\vt fidiiiiji 



HTJIII» ««*.«» 









:;:i:i;£:S .i" ^oli 1 '" 





9 DEC. A 



W.Sl 



■ 



\ 



w 





Obstr.td A ttrt« t s-lew ( <20) 



I 



'"'■I 











LA-* SCOTT IS. 









I R30 







70° 





s 



025 NJAl^ 



*■* ' *—v WlOPEN 



£_^^ W WATER 





70° 





\ 









A, c . APE <r ,E 1 









- 





Z> / 









Q 





g — # c °ni 1MAN IS # 



LADY NEWNESS ICE SHEtF^ ty ^ /// 



1 /// * ROSS S E 



A 

















V 





■[- franklin/s. 

 ,J 15 DEC. o //I 



- 







O 



> 





^■:^:-:K<t^ u S* T IS 



):■: '#t>ss is^.^"""""-/,,,, 













M£><? x 









■ 



f 





< \ 





80° 



{ 



i i i i 1h i 



, , , ,R O S S ICE SHELF 



I I I I I 1 I I 1 i i i i i i i i i i 1 i 



1 1 1 1 1 





160° 



170° 180° 



170° 



80° 



FIGURE 19. ICE CONDITIONS, ROSS SEA AREA, USS ATKA, DECEMBER 1959 



38 



