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(*SEA ICE
3
ANTARCTIC REGIONS)
Ice and Permafrost
3
MCMURDO SOUND
3
ROSS SEA
3
ROUGHNESS
3
Snow
3
AERIAL RECONNAISSANCE
2
DEEP FREEZE OPERATION
2
DISTRIBUTION
2
MAPS
2
METEOROLOGICAL SATELLITES
2
PERIODIC VARIATIONS
2
(*AERIAL RECONNAISSANCE
1
(*OCEANOGRAPHY
1
(*WEATHER FORECASTING
1
ATMOSPHERIC TEMPERATURE
1
C-121 AIRCRAFT
1
C-121J AIRCRAFT
1
C-130 AIRCRAFT
1
C-130F AIRCRAFT
1
DRIFT
1
FREEZING
1
ICE ISLANDS
1
ICEBREAKERS
1
MARINE TRANSPORTATION
1
MELTING
1
METEOROLOGICAL CHARTS
1
Meteorology
1
OBSERVATION AIRCRAFT
1
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