WATER PERFECT

Water entering the

system through

rain or snowfall.

Water lost through

evaporation from

surface water

bodies and soil.

Water that enters the

ground, replenishing

groundwater

supplies.

Water that moves

across the land

surface into rivers

and streams.

This method involves measuring the velocity at

multiple points across a river or stream cross-section and then combining these

velocities with the corresponding cross-sectional areas to compute discharge.

This is a simple and low-cost

technique, though not as precise as using current meters. It uses a floating

object to estimate the flow velocity at a specific location.

Current meters provide a more

accurate measurement of velocity compared to the float method.

A ___ is basically an obstruction in the

flow path in an open channel. The weir

will cause an increase in the water depth

as the water flows over the weir.

Types of Weirs

based on

Shape of the

Opening

A standard weir shape suitable for larger

flowing channels.