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ANTARCTIC REGIONS
2
CANADA
2
GREENLAND
2
Ice and Permafrost
2
MELTING
Snow
2
(*GLACIERS
1
(*ICE
1
(*PERMAFROST
1
(*SNOW
1
*ABSTRACTS)
1
*BIBLIOGRAPHIES)
1
AERIAL PHOTOGRAPHS
1
AERIAL RECONNAISSANCE
1
AIRBORNE
1
ALASKA
1
ARCTIC REGIONS
1
CONSTRUCTION
1
CRYSTAL GROWTH
1
CRYSTAL STRUCTURE
1
DEPTH FINDING)
1
EROSION
1
FREEZING
1
FRICTION
1
FROST HEAVE
1
GEOLOGY
1
GLACIERS
1
HEAT TRANSFER
1
ICE ISLANDS
1
Information Science
1
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