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*ARCTIC REGIONS
*ICE FORECASTING
1
*WEATHER FORECASTING
1
AERIAL RECONNAISSANCE
1
ALASKA
1
CRACKS
1
DATA ACQUISITION
1
DATA PROCESSING EQUIPMENT
1
DIURNAL VARIATIONS
1
FREEZING
1
ICE ISLANDS
1
Ice and Permafrost
1
MELTING
1
METEOROLOGICAL CHARTS
1
Meteorology
PHOTOGRAMMETRY
1
POLAR REGIONS
1
SEA ICE
1
Snow
THICKNESS
1
WEATHER
1
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