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Ice and Permafrost
7
Snow
7
MELTING
6
(*AERIAL RECONNAISSANCE
5
(*SEA ICE
5
FREEZING
5
GREENLAND SEA
5
ICE ISLANDS
5
SEA ICE)
5
OBSERVATION AIRCRAFT
4
ARCTIC OCEAN)
3
DENMARK
3
FLIGHT PATHS
3
SEA WATER
3
STRAITS
3
THICKNESS
3
WEATHER FORECASTING
3
AERIAL PHOTOGRAPHS
2
ALASKA
2
ARCTIC OCEAN
2
ARCTIC REGIONS
2
ARCTIC REGIONS)
2
BAFFIN ISLAND
2
C-121 AIRCRAFT
2
CANADA
2
CRACKS
2
GREENLAND
2
METEOROLOGICAL RADAR
2
Meteorology
2
Physical and Dynamic Oceanography
2
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Arctic
7
Arctic Ocean
7
Greenland
7
Ice
7
Sea ice
7
permafrost
7
Greenland Sea
6
Arctic Basin
5
Alaska
4
Baffin
3
Baffin Bay
3
Banks Island
3
Canadian Archipelago
3
Denmark Strait
3
Iceland
3
Parry Channel
3
ice pack
3
Archipelago
2
Baffin Island
2
Barents Sea
1
Franz Josef Land
1
Iceberg*
1
Lincoln Sea
1
Mackenzie river
1
North Pole
1
Robeson channel
1
Scoresby Sund
1
Viscount Melville Sound
1
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