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CLIMATE
COASTAL REGIONS
Ice and Permafrost
5
Snow
5
ALASKA
4
TERRAIN
4
(*ICE
3
(*WEATHER FORECASTING
3
AERIAL RECONNAISSANCE
3
BIRDS EYE PROJECT
3
DISTRIBUTION
3
DIURNAL VARIATIONS
3
ICE ISLANDS
3
MARINE METEOROLOGY
3
Meteorology
3
PHOTOGRAPHIC RECORDING SYSTEMS
3
PLAN POSITION INDICATORS
3
POLAR REGIONS
3
SEA ICE
3
SEA WATER
3
SOURCES
3
*ARCTIC REGIONS
2
*SEA ICE
2
ARCTIC OCEAN
2
ARCTIC OCEAN)
2
ARCTIC REGIONS)
2
(*HYDROLOGY
1
*ARCTIC OCEAN
1
*ARCTIC OCEAN)
1
*ARCTIC REGIONS)
1
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Alaska
Arctic
6
Arctic Ocean
6
Ice
permafrost
6
Sea ice
5
Arctic Basin
3
Climate change
2
Greenland
2
laptev
2
Barrow
1
Bering Sea
1
Chukchi
1
Chukchi Sea
1
East Greenland
1
Human health
1
Lomonosov Ridge
1
Northern Sea Route
1
Northwest passage
1
Spitzbergen
1
Tundra
1
ice covered waters
1
wedge*
1
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