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*ARCTIC REGIONS
Ice and Permafrost
5
Snow
5
ARCTIC OCEAN
4
NORTHWEST PASSAGE
4
CLIMATE CHANGE
3
NORTHERN SEA ROUTE
3
SEA ICE
3
SYMPOSIA
3
*SEA ICE
2
CLIMATE
2
CONTINENTAL SHELVES
2
DATA ACQUISITION
2
GREENHOUSE EFFECT
2
MARITIME OPERATIONS
2
MISSIONS
2
Meteorology
2
Military Operations
2
NATIONAL SECURITY
2
NAVAL OPERATIONS
2
SEARCH AND RESCUE
2
SHIPPING
2
Strategy and Tactics
2
*ARCTIC OCEAN
1
*CLIMATE CHANGE
1
*COAST GUARD
1
*DEPARTMENT OF DEFENSE
1
*GEOPOLITICS
1
*GOVERNMENT(FOREIGN)
1
*ICE-FREE ARCTIC
1
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