69° 
20’ 
40’ 
70° 
40 
76°§ 
30 
3 
é 
A Jai 
Bos 32 g 
aXX a 
Sa eces 
SO |g 
SS 
OES 
COO 
SSSR 
anecota oonreconaneee 
SACRO 
Y 
oS \ 
. ae eececeeece, 
SOBER 
SOSH 50 
ON 
QR C523 
SOS OSS 
<> 
KELL 
SECS 
UNOBSERVED 
SOME GREASE ICE tmag” x 
KANGITDLASSAVAT 
if ze 
& 6 z/e B a 
zs s|3 2 w 
Se El fe 
3 
q — ” 
ad q < a 
9 
cS 
2 
nearest ft 
Lead 
ED Polynya 
THICKNESS OF SEA ICE AND SNOW] [ICE OF LAND ORIGIN 
where 
SAUNDER 
p 
1801 
70° 
rage 
rage 
SB fe te & 
Ss 8 2, 
on 2 SC 2 
S 
= 
1649 
of £ t=) 
7m a 
co 
0. 
10 0.8 cov 
jo 1.0 cov 
overag 
HET 
—— Known 
——— Assumed 
WOLSTENHOLME 
0) « 
NNE 
Cd 
fo) 
7 
H 76° 
H 30 
25 
40° 
Tis 
69° 
FIGURE 7 SYNOPTIC ICE CONDITIONS, 6 OCTOBER 1953 
20’ 
40’ 
