Annual runoff line

The runoff data (isolines) show runoff in liters/second/km² based on the normal period 1961 – 1990.The runoff map is an important tool for anyone who needs to calculate the mean inflow to a point in a watercourse. This may be necessary in connection with the dimensioning of facilities for power supply, the establishment of mini- and mikrikraftver, water supply, agricultural irrigation, fish farming, flood protection, road and bridge construction.