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COASTAL REGIONS
ICE ISLANDS
Ice and Permafrost
5
SEA ICE
5
Snow
5
(*ICE
4
BIRDS EYE PROJECT
4
DIURNAL VARIATIONS
4
MARINE METEOROLOGY
4
Meteorology
4
POLAR REGIONS
4
TERRAIN
4
(*WEATHER FORECASTING
3
AERIAL RECONNAISSANCE
3
ALASKA
3
CLIMATE
3
DISTRIBUTION
3
PHOTOGRAPHIC RECORDING SYSTEMS
3
PLAN POSITION INDICATORS
3
SEA WATER
3
SOURCES
3
ARCTIC OCEAN)
2
ARCTIC REGIONS)
2
GREENLAND
2
(*ARCTIC REGIONS
1
*ARCTIC OCEAN
1
*ARCTIC OCEAN)
1
*ARCTIC REGIONS)
1
*CLIMATOLOGY
1
*NAVAL OPERATIONS
1
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