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ICE
Ice and Permafrost
3
Snow
3
POLAR REGIONS
2
STRATIGRAPHY
2
(*SNOW
1
*ANTARCTIC REGIONS
1
*DRILLING
1
*SNOW
1
ANTARCTIC REGIONS
1
ANTARCTIC REGIONS)
1
ATMOSPHERIC TEMPERATURE
1
BYRD STATION
1
COLD WEATHER TESTS
1
CRYSTAL GROWTH
1
DENSITY
1
DISTRIBUTION
1
DRILLING
1
DRILLING MACHINES
1
FREEZING
1
GEOLOGICAL SURVEYS
1
GLACIERS
1
GREENLAND
1
Geochemistry and Mineralogy
1
Geology
1
ICE ISLANDS
1
METEOROLOGICAL PHENOMENA
1
Meteorology
1
PERIODIC VARIATIONS
1
ROTARY DRILLING
1
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