Hydrology - runoff isolines
The run-off data (isolines) shows run-off in litres/second/km2 based on the normal period 1961 - 1990. The run-off map is an important tool for everyone who needs to calculate mean inflows to appoint in a watercourse. This may be necessary when designing power supply plants, establishing mini and micro power stations, water supply, agricultural irrigation, fish farming, flood protection and road and bridge construction.
Submitter: Norwegian Mapping Authority
Owner: Norwegian Water Resources and Energy Directorate
Version number 1