60 



160° 170 



I I I I I I I I I I I I 



180° 



170° 



i i i i i i i i r 



| i i I I i i i i i | i i i 



KEY 10 ICE SYMBOLS 



|COVERACE (CONCENTRATION) | \ ACE ) 



[THICKNESS AND SNOW COVER 1 I 



|:= r Eft: 





Szi™ — g|3 





:;::r/.i-fh::" ™slzr 



I ICE OF LAND ORIGIN | 



1 S ° mDAm I Alc.bt.p-W-., (>H) 



■<L .ROSS ICE, SHELF 



I I I I -i)l 1 I I I I i I i I i I I I i i i i i 1 i i i i i 



'ill 



60' 



160° 



170° 



180° 



170° 



FIGURE 22. ICE CONDITIONS, ROSS SEA AREA, USC6C EASTWIND, JANUARY- FEBRUARY 1960. 



41 



