Topics
Climate
8
Hydrology
5
Ice mechanics
5
Ice on rivers, lakes, etc
5
Temperature
5
Dams
3
Environmental aspects
3
Hydroelectric power plants
3
Stream measurements
3
Climatology
2
Animals
1
Data processing
1
Ecology
1
Environmental conditions
1
Fishes
1
Geographic information systems
1
Geology
1
Licenses
1
Meteorology
1
Observations
1
Power utilization
1
Research
1
Streamflow
1
Water temperature
1