Actual Vapour Pressure in Measurement of Evapotranspiration Formulas

Actual Vapour Pressure is the air in mm of mercury is the vapour pressure exerted by the water in the air. And is denoted by e_a. Actual Vapour Pressure is usually measured using the Millimeter Mercury (0 °C) for Pressure. Note that the value of Actual Vapour Pressure is always positive.

Measurement of Evapotranspiration formulas that make use of Actual Vapour Pressure

fxEquation for Net Radiation of Evaporable WaterGo

FAQ

What is the Actual Vapour Pressure?

Actual Vapour Pressure is the air in mm of mercury is the vapour pressure exerted by the water in the air. Actual Vapour Pressure is usually measured using the Millimeter Mercury (0 °C) for Pressure. Note that the value of Actual Vapour Pressure is always positive.

Can the Actual Vapour Pressure be negative?

No, the Actual Vapour Pressure, measured in Pressure cannot be negative.

What unit is used to measure Actual Vapour Pressure?

Actual Vapour Pressure is usually measured using the Millimeter Mercury (0 °C)[mmHg] for Pressure. Pascal[mmHg], Kilopascal[mmHg], Bar[mmHg] are the few other units in which Actual Vapour Pressure can be measured.

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