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CHUKCHI SEA
3
FREEZING
Ice and Permafrost
3
Snow
3
(*AERIAL RECONNAISSANCE
2
(*SEA ICE
2
GREENLAND SEA
2
MELTING
2
OBSERVATION AIRCRAFT
2
SEA ICE)
2
THICKNESS
2
*ARCTIC OCEAN
1
*CYCLES
1
*SEA ICE
1
AIRBORNE
1
ALASKA
1
ARCTIC OCEAN
1
ARCTIC OCEAN)
1
ARCTIC REGIONS
1
ARCTIC REGIONS)
1
BEAUFORT SEA
1
BERING SEA
1
CLOUD COVER
1
DISTRIBUTION
1
FLIGHT PATHS
1
FORECASTING
1
ICE COVERAGE
1
ICE FOG
1
MAPS
1
METEOROLOGICAL CHARTS
1
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