Types of river flow

Three types of hydrological regime: -

1. ephemeral rivers

2. Intermittent streams

3. The perennial rivers or  Permanent rivers

1. ephemeral rivers:

Ephemeral rivers are distinguished by rapid temporal flow as a result of exceptionally heavy rainfall or rapid snowmelt. Bed on these rivers stays dry throughout most of the year and groundwater level is well below the surface and stream baseflow is not produced.

These rivers are as wadis of the desert areas. In desert zones flash floods occurs on the basis of the most irregular.

2. Intermittent streams:

Intermittent rivers are semi-permanent. It is characterized with seasonal flow. These rivers flow during wet periods where runoff relates to both rapid flow of heavy rain and / or stream baseflow of a temporary increase in waterboarding to the level of the riverbed.

Throughout the summer which is the dry period, the river bed is normally dry owing to the reduced precipitation and water table drops.

3. Permanent rivers:

Permanent rivers are distinguished by a continuous flow from the water table is always at the level of the riverbed. These streams have a flow rate consistent basis throughout. Furthermore, complemented with rapid flow as a result of severe storms.

However, most rivers represent combined two or three kinds of flow along portions of its course.