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(*AERIAL RECONNAISSANCE
3
(*SEA ICE
ARCTIC OCEAN)
3
FREEZING
GREENLAND SEA
3
Ice and Permafrost
3
MELTING
3
SEA ICE)
3
SEA WATER
3
Snow
3
DATA ACQUISITION
2
DATA PROCESSING
2
ICE ISLANDS
2
NAVAL AIRCRAFT
2
OBSERVATION AIRCRAFT
2
Physical and Dynamic Oceanography
2
ARCTIC REGIONS
1
BAFFIN ISLAND
1
C-121 AIRCRAFT
1
CANADA
1
CRACKS
1
DENMARK
1
DISTRIBUTION
1
DIURNAL VARIATIONS
1
FLIGHT PATHS
1
METEOROLOGICAL RADAR
1
Military Operations
1
NAVIGATION CHARTS
1
POLAR REGIONS
1
PREDICTIONS
1
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