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(*SEA ICE
4
ARCTIC OCEAN)
4
GREENLAND SEA
4
Ice and Permafrost
4
Snow
4
(*AERIAL RECONNAISSANCE
3
FREEZING
3
MELTING
3
SEA ICE)
3
SEA WATER
3
CANADA
2
DATA ACQUISITION
2
DATA PROCESSING
2
DISTRIBUTION
2
ICE ISLANDS
2
NAVAL AIRCRAFT
2
OBSERVATION AIRCRAFT
2
Physical and Dynamic Oceanography
2
STRAITS
2
(*ICE ISLANDS
1
ARCTIC REGIONS
1
BAFFIN ISLAND
1
C-121 AIRCRAFT
1
CRACKS
1
DENMARK
1
DIURNAL VARIATIONS
1
DRIFT)
1
FLIGHT PATHS
1
METEOROLOGICAL RADAR
1
Military Operations
1
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