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*ARCTIC REGIONS
1
*SEA ICE
1
ARCTIC MONITORING
1
ARCTIC OCEAN
1
ARCTIC SEA ICE CONCENTRATION
1
ARCTIC SEA ICE EXTENT
1
ARTIFICIAL SATELLITES
1
Arctic regions--Maps
1
DATA ACQUISITION
1
FORECASTING
1
ICE ANALYSIS
1
ICE INFORMATION
1
Ice and Permafrost
1
MARITIME OPERATIONS
1
MASIE(MULTISENSOR ANALYZED SEA ICE EXTENT)
1
MONITORING
1
NAVAL OPERATIONS
1
NORTH POLE
1
NORTHERN SEA ROUTE
1
NORTHWEST PASSAGE
1
Northeast Passage--Maps
1
Northwest Passage--Maps
1
Permafrost--Arctic regions--Maps
1
SATELLITE IMAGERY
1
SEA ICE CONDITIONS
1
SYMPOSIA
1
Snow
1
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