Topic
ARCTIC OCEAN
CANADA
35
Physical and Dynamic Oceanography
17
Ice and Permafrost
16
Snow
16
*ARCTIC REGIONS
12
ARCTIC REGIONS
11
*SEA ICE
10
GREENLAND
9
Government and Political Science
8
ICE
8
RUSSIA
8
TEMPERATURE
8
USSR
8
WATER
8
ALASKA
7
Acoustics
7
DENMARK
7
Geography
7
Meteorology
7
NORWAY
7
(*ARCTIC REGIONS
6
CONTINENTAL SHELVES
6
SALINITY
6
SEA ICE
6
CLIMATE
5
GOVERNMENT(FOREIGN)
5
ICE ISLANDS
5
MELTING
5
NATIONAL SECURITY
5
OCEANOGRAPHIC DATA
5
SEA WATER
5
SEASONAL VARIATIONS
5
STRAITS
5
THESES
5
UNITED STATES
5
*CLIMATE
4
BARENTS SEA
4
CLIMATE CHANGE
4
GREENHOUSE EFFECT
4
Military Forces and Organizations
4
Military Operations
4
NATURAL RESOURCES
4
OCEANOGRAPHY
4
POLICIES
4
SYMPOSIA
4
Strategy and Tactics
4
UNITED STATES GOVERNMENT
4
*CANADA
3
*OCEAN CURRENTS
3
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