Hydrologic cycle

Hydrologic Cycle (source: Michael E. Ritter, University of Wisconsin)

The hydrologic cycle is the fundamental principle of hydrology. It is the idealized form of water circulation and its recycling on earth. Water cycle is a continuous process by which water is transported from the oceans to the atmosphere, to land and back to the sea.

This is expressed in the water balance equation:

P = Q + E +/- ΔS

 

Where:

P : average height of precipitation in the catchment [mm]

Q: average height of runoff (discharge) [mm]

E: Evaporation [mm]

S: changes of storage in the catchment [mm]

 

 


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Hydrological modelling
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TUHH

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