17.3.1. Class A Evaporation Pan

Try these first

1. 1.

   What is the diameter of the Class A Evaporation Pan?

   Hint

   Think about its standardized size.

2. 2.

   Which materials are commonly used to construct the Class A Evaporation Pan?

   Hint

   Focus on materials that resist rust and corrosion.

3. 3.

   What is the typical diameter of a Class A Evaporation Pan?

   • 1000 mm
   • 1207 mm
   • 1500 mm

   Hint

   Remember the specifications discussed.

4. 4.

   True or False: A Pan Coefficient is used because the pan's evaporation readings are lower than actual larger water bodies.

   • True
   • False

   Hint

   Focus on the relationship between the pan and larger water bodies.

5. 5.

   If a Class A Evaporation Pan displayed an evaporation reading of 12 mm over a week, and the environmental conditions suggested a Pan Coefficient of 0.8, what would be the estimated evaporation from a larger water body over the same period?

   Hint

   Multiply the weekly measurements by the number of days and apply the coefficient.

6. 6.

   Consider a study where two different evaporation pans are set up in regions with varying climatic conditions. Discuss how this might impact evaporation readings and the effectiveness of the Pan Coefficient.

   Hint

   Think about how temperature, humidity, and wind affect rates.