Topic
(*SEA ICE
Ice and Permafrost
6
Snow
6
MELTING
4
FREEZING
3
MCMURDO SOUND
3
SEA ICE)
3
THICKNESS
3
AERIAL RECONNAISSANCE
2
ANTARCTIC REGIONS)
2
ATMOSPHERIC TEMPERATURE
2
CRACKS
2
DATA PROCESSING
2
ICE FORECASTING
2
ICE ISLANDS
2
ICEBREAKERS
2
MARINE TRANSPORTATION
2
METEOROLOGICAL SATELLITES
2
POLAR REGIONS
2
PREDICTIONS
2
TRANSLATIONS
2
USSR
2
(*AERIAL RECONNAISSANCE
1
(*CATALOGS
1
(*OCEAN CURRENTS
1
(*RUNWAYS
1
(*WEATHER FORECASTING
1
*AERIAL PHOTOGRAPHS)
1
*ANTARCTIC REGIONS)
1
*ARCTIC REGIONS)
1
*BEARING STRENGTH
1
ANTARCTIC REGIONS
1
ARCTIC OCEAN
1
ARCTIC REGIONS
1
AVIATION SAFETY
1
COASTAL REGIONS
1
CONSTRUCTION)
1
CONTINENTAL SHELVES
1
COOLING
1
DEEP FREEZE 1968 OPERATION
1
DEFLECTION
1
DRIFT)
1
ELASTIC PROPERTIES
1
FLEXURAL STRENGTH
1
FLIGHT PATHS
1
FLUID FLOW
1
HYDROGRAPHIC SURVEYING
1
IDENTIFICATION
1
INSTRUCTION MANUALS
1
LOADS(FORCES)
1
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