19.5.1.3. Pan Evaporation Method

Try these first

1. 1.

   What does the Pan Evaporation Method estimate?

   Hint

   Think about the processes of water loss.

2. 2.

   What does K_p stand for?

   Hint

   It adjusts the pan evaporation measurements.

3. 3.

   What is the primary purpose of the Pan Evaporation Method?

   • To measure rainfall
   • To estimate evapotranspiration
   • To calculate soil moisture

   Hint

   Focus on the process of water loss to the atmosphere.

4. 4.

   True or False: The pan coefficient (K_p) is a constant value.

   • True
   • False

   Hint

   Consider if external factors can change this value.

5. 5.

   In an area with high winds and low humidity, the measured evaporation from a Class A pan is 12mm. If the average K_p for this environment is determined to be 0.6, what is the estimated ET?

   Hint

   Use the formula and consider how environmental factors play a role.

6. 6.

   Investigate how an increase in temperature affects the K_p and subsequent ET estimates. Design a brief report discussing the relationship with supporting data.

   Hint

   Focus on how K_p changes with temperature.