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Ice and Permafrost
9
Snow
9
ALASKA
5
TABLES(DATA)
5
CANADA
4
LAKES
4
MEASUREMENT
4
RIVERS
4
(*SNOW
3
ARCTIC REGIONS)
3
ATMOSPHERIC TEMPERATURE
3
DENSITY
3
HARDNESS
3
Hydrology
3
ICE REPORTING
3
Limnology and Potamology
3
TEMPERATURE
3
(*CLIMATE
2
(*SEA ICE
2
*ICE
2
*LAKES
2
EROSION
2
ICE AUGERS
2
ICE BREAKUP
2
ICE FORMATION
2
Meteorology
2
PHYSICAL PROPERTIES)
2
PREDICTIONS
2
THICKNESS
2
WINTER
2
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