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(*AERIAL RECONNAISSANCE
2
(*SEA ICE
2
DATA ACQUISITION
2
DATA PROCESSING
2
FREEZING
2
GREENLAND SEA
2
ICE ISLANDS
Ice and Permafrost
2
MELTING
2
OBSERVATION AIRCRAFT
2
Physical and Dynamic Oceanography
2
SEA ICE)
SEA WATER
2
Snow
2
*ARCTIC OCEAN)
1
*POLYNYAS
1
ARCTIC OCEAN)
1
BIRDS EYE 3 PROJECT(1969)
1
DENMARK
1
FLIGHT PATHS
1
FRANZ JOSEF LAND
1
GREENLAND
1
METEOROLOGICAL RADAR
1
Military Operations
1
NAVAL AIRCRAFT
1
NAVIGATION CHARTS
1
POLAR REGIONS
1
PREDICTIONS
1
STRAITS
1
Strategy and Tactics
1
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