A flow that occurs only seasonally when the water table is at the maximum level. The drainage network is composed of ephemeral, intermittent and perennial streams and the network expands during rainstorms and extends to limits affected by antecedent conditions especially antecedent moisture. Flow may occur along intermittent streams for several months each year but will seldom occur when the water table is lowered during the dry season ( Thomas and Goudie 2000).
Stream - a stream that flows only during certain times of the year. Seasonal flow in an intermittent stream usually lasts longer than 30 days per year. See also ephemeral and perennial streams. inematic Wave Method - hydraulic river routing method that uses the continuity equation and the momentum equation for unsteady flow in open channels. ag Time - time from the center of mass of the rainfall to the peak of the hydrograph. Losses - Rainfall that does not runoff, i.e. rainfall that infiltrates into the ground or is held in ponds or on leaves, etc.
a stream that flows only periodically throughout the year.