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ALASKA
FREEZING
2
ICE ISLANDS
2
Ice and Permafrost
MELTING
Meteorology
2
Snow
2
(*AERIAL RECONNAISSANCE
1
(*SEA ICE
1
*ARCTIC REGIONS
1
*ICE FORECASTING
1
*WEATHER FORECASTING
1
AERIAL PHOTOGRAPHY
1
AERIAL RECONNAISSANCE
1
ARCTIC OCEAN)
1
BAFFIN BAY
1
BIRDS EYE 4 1969 PROJECT
1
CEILING
1
CRACKS
1
DATA ACQUISITION
1
DATA PROCESSING EQUIPMENT
1
DIURNAL VARIATIONS
1
FLIGHT PATHS
1
GREENLAND SEA
1
METEOROLOGICAL CHARTS
1
NAVAL AIRCRAFT
1
OBSERVATION AIRCRAFT
1
PHOTOGRAMMETRY
1
POLAR REGIONS
1
SEA ICE
1
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