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(*AERIAL RECONNAISSANCE
2
(*SEA ICE
2
ALASKA
2
FREEZING
2
GREENLAND SEA
Ice and Permafrost
2
MELTING
2
OBSERVATION AIRCRAFT
2
SEA ICE)
2
Snow
2
AERIAL PHOTOGRAPHY
1
AIRBORNE
1
ARCTIC OCEAN
1
ARCTIC OCEAN)
1
ARCTIC REGIONS)
1
BAFFIN BAY
1
BIRDS EYE 4 1969 PROJECT
1
CEILING
1
CHUKCHI SEA
1
DISTRIBUTION
1
FLIGHT PATHS
1
ICE ISLANDS
1
METEOROLOGICAL CHARTS
1
Meteorology
1
NAVAL AIRCRAFT
1
SEA WATER
1
SURFACE TEMPERATURE
1
THERMOMETERS
1
THICKNESS
1
VISIBILITY
1
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