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CANADA
3
Ice and Permafrost
3
Snow
3
(*SEA ICE
2
ARCTIC OCEAN)
2
ARCTIC REGIONS
2
GREENLAND SEA
2
(*AERIAL RECONNAISSANCE
1
(*ICE ISLANDS
1
*PHOTOINTERPRETATION
1
*RADAR IMAGES
1
*SEA ICE
1
AERIAL PHOTOGRAPHY
1
AERIAL RECONNAISSANCE
1
ARCTIC OCEAN
1
Active & Passive Radar Detection & Equipment
1
BAFFIN ISLAND
1
C-121 AIRCRAFT
1
CRACKS
1
Cartography and Aerial Photography
1
DISTRIBUTION
1
DIURNAL VARIATIONS
1
DRIFT)
1
FREEZING
1
KANE BASIN
1
MELTING
1
OCEAN CURRENTS
1
PHOTOGRAPHS
1
SEA ICE)
1
SEA WATER
1
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