Correct option is A
The correct answer is: A – 0.7
Explanation:
In evapotranspiration studies, the pan coefficient (Kₚ) is used to convert pan evaporation (Epan) data to reference evapotranspiration (ET₀) using the formula:
In evapotranspiration studies, the pan coefficient (Kₚ) is used to convert pan evaporation (Epan) data to reference evapotranspiration (ET₀) using the formula:
ET0=Kp×EpanET₀ = Kₚ \times E_{pan}ET0=Kp×Epan
The commonly used pan coefficient is 0.7, especially for Class A evaporation pans. This coefficient may vary slightly depending on local conditions like wind speed, humidity, and pan environment, but 0.7 is a standard average value.
Information Key Points:
Pan coefficient (Kₚ) adjusts pan evaporation to represent actual field conditions.
Typical value for Class A pan = 0.7.
Evapotranspiration is a key process in hydrology and irrigation planning.
Kₚ varies from 0.35 to 0.85, but 0.7 is most commonly used.
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