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ALASKA
4
CANADA
4
Ice and Permafrost
4
LAKES
4
MEASUREMENT
4
RIVERS
Snow
4
TABLES(DATA)
4
ICE REPORTING
3
(*SEA ICE
2
ARCTIC REGIONS)
2
ICE AUGERS
2
THICKNESS
2
(*ARCTIC REGIONS
1
(*ICE
1
*ARCTIC REGIONS
1
*ICE
1
*LAKES
1
*Lake ice
1
*RIVERS
1
*River ice
1
*SEA ICE
1
*SUBARCTIC REGIONS
1
Hydrology
1
ICE BREAKUP
1
ICE FORMATION
1
ICE)
1
Ice breakup
1
Limnology and Potamology
1
MAPS
1
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