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Ice and Permafrost
19
Snow
*SEA ICE
8
ALASKA
4
DENSITY
4
GREENLAND
4
THICKNESS
4
*ICE
3
ANTARCTIC REGIONS
3
ARCTIC REGIONS
3
Active & Passive Radar Detection & Equipment
3
LOADS(FORCES)
3
PROFILES
3
TEMPERATURE
3
(*SNOW
2
*ANTARCTIC REGIONS
2
*ICE ISLANDS
2
COASTAL REGIONS
2
COMPRESSIVE PROPERTIES
2
CONSTRUCTION MATERIALS
2
CORE SAMPLING
2
CRACKS
2
ELECTROMAGNETIC PROPERTIES
2
FIELD TESTS
2
FLEXURAL STRENGTH
2
LAKES
2
MECHANICAL PROPERTIES)
2
MORPHOLOGY
2
Mechanics
2
OCEAN BOTTOM
2
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Antarctic
5
Arctic
4
Greenland
4
Bering Sea
2
Allan Hills
1
Arctic Ocean
1
Bering Strait
1
Cape Prince of Wales
1
Chukchi Sea
1
Double Point
1
Fairway Rock
1
Lechner
1
McMurdo Ice Shelf
1
McMurdo Sound
1
Norton Sound
1
Patuxent Range
1
Pensacola Mountains
1
Ross Ice Shelf
1
Ross Island
1
Rosser Ridge
1
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Ice
19
permafrost
Sea ice
11
Alaska
6
Antarc*
5
Antarctic
5
Antarctica
4
Arctic
4
Greenland
4
Beaufort Sea
3
Bering Sea
2
Iceberg*
2
Prudhoe Bay
2
Arctic Ocean
1
Bering Strait
1
Chukchi
1
Chukchi Sea
1
Ice Shelf
1
McMurdo Ice Shelf
1
McMurdo Sound
1
Ross Ice Shelf
1
Ross Island
1
Tundra
1
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