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AIRBORNE
2
BOLOMETERS
2
HUDSON BAY)
2
MAPS
2
MEASUREMENT
2
PERIODIC VARIATIONS
2
(*GEOLOGIC AGE DETERMINATION
1
(*GLACIERS
1
(*HUDSON BAY
1
(*HYDROGRAPHIC SURVEYING
1
(*INFRARED RADIATION
1
(*SURFACE TEMPERATURE
1
ABSORPTION
1
AIR MASS ANALYSIS
1
AIRCRAFT
1
ARCTIC OCEAN ISLANDS
1
ARCTIC REGIONS
1
CLOUD COVER
1
DEPOSITS
1
DISTRIBUTION
1
ENERGY
1
FLIGHT PATHS
1
GREAT LAKES
1
Geochemistry and Mineralogy
1
Geology
1
HEAT TRANSFER
1
HISTORY
1
ICE
1
ICE)
1
INFRARED EQUIPMENT
1
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