Terms of Hydrology (U)

unconfined aquifer :

Aquifer containing unconfined groundwater, that is having a water table and ...

underflow :

Movement of water through a pervious stratum under the bed of a river.

uniform flow :

Flow in which the velocity vector is constant along every streamline.

unit hydrograph :

Hydrograph of direct runoff resulting from a unit amount of effective rainf ...

unstable channel :

Channel in which, on the average, there are significant morphological chang ...

unsteady flow :

Flow in which the velocity changes in magnitude or direction with respect t ...

upconing :

Upward movement of salt water in a cone-shaped manner from below a freshwat ...

upper reach :

Part of a stream channel in the higher region of a drainage basin.

upstream :

In the direction towards the source of a stream.

urban hydrology :

That branch of hydrology which deals with the hydrology of urban and metrop ...