Question:medium

The average pan coefficient for United States Weather Bureau Class A pan is equal to:

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Remember: Class A pan coefficient (Kp) is typically 0.70. Adjustments depend on location, wind, and humidity conditions.
Updated On: Jan 17, 2026
  • 0.95
  • 1.1
  • 0.7
  • 0.2
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The Correct Option is C

Solution and Explanation

The pan coefficient (\(K_p\)) converts pan evaporation measurements to reflect evaporation from larger water bodies. For the U.S. Weather Bureau Class A pan, this coefficient averages 0.70, accounting for differences in heat storage and energy exchange between the pan and natural water bodies.

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