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Hydrology
Ice and Permafrost
Limnology and Potamology
5
Snow
5
ICE
3
RIVERS
3
*ICE
2
*OHIO RIVER
2
ACCUMULATION
2
COVERINGS
2
DISTRIBUTION
2
HYDRAULICS
2
ICE FORMATION
2
NAVIGATION
2
OHIO RIVER
2
TEMPERATURE
2
WATER
2
WINTER
2
*CLIMATE
1
*ICE COVER
1
*ICE FORECASTING
1
*ICE FORMATION
1
*INSPECTION
1
*MAPS
1
*MATHEMATICAL MODELS
1
*MISSOURI RIVER
1
*OHIO RIVER VALLEY
1
*OHIO RIVERS
1
*RIVER ICE
1
*RIVERS
1
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