180° 172°E 164°E 156°E 
78°s 
78°s 
cin 
351 50y50s! 
LEAD CN 0. 4 + 
A 
072 90w10Y 
(TDs ts 2 core in) 
SNES ST) Sita 
we FRBR] 0 eamatte or et en) bans Une 
i 
aah 
8 stentes of shesh, brash, ond Blech esse Crach memes Lead 
aystenths of small and medium fees Orr 
‘f= tenths of giant flows and field 
A keaberps—many (>20) 
Sere D lcabergs—tew (<2) 
——— Exbmated a Bergy bits and growiers (>20) 
= = = Limit of observed data 2 Bergy bith sod gromlans (<20) 
72°s ICE ISLAND=H 72°s 
cn A 
053 s80W20Y 
70S 
70°s 
172°W 180° 172°E 164°E 
Sy LESS THAN ONE TENT 
? BRASH—BLOCK 
& 
gow 10Y 
KEY TO ICE SYMBOLS 
[COVERAGE (CONCENTRATION) 
ea tree 
(EEE) <0) (com wotet) Sim Sich WenWinter ice 
Yen Young ice Pim Poler ice 
0.1 tere 0.4 (scattered ice) A A 
‘i Came oar aon W'S 
(DT 95 toe 07 corohan ica) 
Ei ties 03 (cose ies) re 
Gominant smount 
tenths unless, 
rotten 
PERE 0 conssiate ott ca) basa 
frozen or 
roma 
tenths of tall and medium, foes 
Myslenths of pizot flows and Feld 
When no entry appears beneath 
symbol extent 1s moderate 
Examples 
5 este) AAA very extensive riding 
leebergs—tew (<20) = 
Cobmates 2 ergy bits and growiers (>20) nn madera 12a, 
+ © © Limit of observed data 2. Bergy bits and growers (< 205 Le lew hommecks 
LESS THAN ONE TENTH 
BRASH —BLOCK 
A Cn 
W 4T4 
172°w 
FIGURE 68, RESULTS OF AERIAL ICE RECONNAISSANCE, ROSS SEA 
180° 
98 
172°E 164°E 
