hydro 3

EVAPORATION

It is the net rate of water vapor transfer.

STOMATA

Water loss from plants occurs when Or small pores open up during the day.

EVAPOTRANSPIRATION

Combination of evaporation and transpiration.

SOLAR RADIATION

It supplies the energy for the liquid water molecules to evaporate.

INCREASES, DECREASES, SLOWER

5-7. As humidity,... , ability to absorb water vapour ........and evaporation....

1-3%

Range of change in evaporation if there is a 10% Change in wind speed.

HIGH MOLECULAR MOTION

High water temperature means in the water.

18cm-20cm

The depth of water in Class A land pan is maintained between......

ISI STANDARD PAN

The top of the pan is covered with a wire mesh to protect the water in the pan from birds.

COLORADO SUNKEN PAN

A square pan buried into the ground within 100 mm of the top.

4.25 X 4.87

Supported by drum floats in the middle of a raft of size and set afloat in a lake.

15mm

A piche atmometer consists of graduated glass tube of diameter.

LYSIMETER

A tool for water balance studies and solute transport determil.

EDDY COVARIANCE SYSTEM

Calculates the covariance between vertical wind speed and the concentration of water vapor in the air.

METEOROLOGICAL DATA

......from weather stations is vital for calculating evaporation rates.

HIGH

Evaporation is over large bodies of water.

RAPID

Dry conditions promote_ evaporation.

MODERATE TO HIGH

In urban areas, the rate of evaporation is,,,

ENERG SUPPLY, VAPOR TRANSPORT

Two main factors influencing evaporation from an open water surface.

WATER AVAILABILITY

Evaporation from different sources, the limiting factor is,,,,

. SELECTING A SITE

Important aspect in evaporation control for water conservation reservoir

SALT FORMATION

What's the relationship between excessive irrigation and high evaporation?