Civil Engineering MCQAE Level Civil Engineering
Reference evapotranspiration ET0 in the Penman-Monteith method requires knowledge of:
Irrigation EngineeringEvapotranspirationMEDIUM
Choose the correct answer
A
Rainfall only
B
Net radiation, air temperature, humidity, and wind speed
C
Soil type only
D
Plant root depth only
Correct Answer
B. Net radiation, air temperature, humidity, and wind speed
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FAO Penman-Monteith equation for ET0 requires: net radiation (Rn), mean air temperature (T), wind speed (u2), actual and saturation vapour pressure (ea, es). ET_crop = Kc x ET0, where Kc = crop coefficient (varies by growth stage).
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