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(*AERIAL RECONNAISSANCE
1
(*SEA ICE
1
ANTARCTIC REGIONS)
1
ATMOSPHERIC TEMPERATURE
1
DATA PROCESSING
1
DEEP FREEZE 1968 OPERATION
1
FREEZING
1
ICE FORECASTING
1
ICEBREAKERS
1
Ice and Permafrost
MARINE TRANSPORTATION
1
MCMURDO SOUND
1
METEOROLOGICAL SATELLITES
1
POLAR REGIONS
PREDICTIONS
1
SEA ICE)
1
Snow
1
THICKNESS
1
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