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*SEA ICE
2
Ice and Permafrost
2
NORTHWEST TERRITORIES
2
Snow
2
THICKNESS
*HELICOPTERS
1
*RADAR MAPPING
1
AIRBORNE
1
AIRCRAFT ANTENNAS
1
Active & Passive Radar Detection & Equipment
1
ELLESMERE ISLAND
1
ESP(Electromagnetic Subsurface Profiling)
1
Electromagnetic subsurface profiling
1
FJORDS
1
FLIGHT TESTING
1
Helicopters
1
ICE FORMATION
1
ICEBREAKERS
1
Ice profiling
1
METEOROLOGICAL PHENOMENA
1
Meteorology
1
NAVIGATION
1
RADAR ANTENNAS
1
RADAR PULSES
1
Slidre fjord
1
TEMPERATURE
1
U/A reports
1
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