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(*AERIAL RECONNAISSANCE
5
(*SEA ICE
5
Ice and Permafrost
5
MELTING
5
SEA ICE)
5
Snow
5
ARCTIC OCEAN)
4
FREEZING
4
GREENLAND SEA
4
CANADA
3
CRACKS
3
ICE ISLANDS
3
Physical and Dynamic Oceanography
3
SEA WATER
3
WEATHER FORECASTING
3
*GREENLAND SEA
2
*OCEAN CURRENTS
2
C-121 AIRCRAFT
2
DENMARK
2
DIURNAL VARIATIONS
2
NAVAL AIRCRAFT
2
OBSERVATION AIRCRAFT
2
SEA ICE
2
STRAITS
2
*ARCTIC OCEAN
1
*OCEANOGRAPHIC DATA
1
AERIAL PHOTOGRAPHY
1
ALASKA
1
ARCTIC OCEAN
1
ARCTIC REGIONS
1
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Arctic
7
Arctic Ocean
7
Canadian Archipelago
Greenland
7
Greenland Sea
7
Sea ice
Arctic Basin
6
Banks Island
5
Ice
5
Parry Channel
5
permafrost
5
Baffin
3
Baffin Bay
3
Denmark Strait
3
Alaska
2
Archipelago
2
Bering Strait
2
North Pole
2
Baffin Island
1
Barents Sea
1
Iceland
1
Lincoln Sea
1
Mackenzie river
1
Norwegian Sea
1
Robeson channel
1
Spitsbergen
1
Subarctic
1
Viscount Melville Sound
1
ice pack
1
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