16.3. Measurement of Evaporation

Try these first

1. 1.

   What is the primary function of a Class A Evaporation Pan?

   Hint

   Recall the name of the standard pan we discussed.

2. 2.

   Name the device used to measure evaporation from wet surfaces.

   Hint

   Think about the alternative name for the atmometer.

3. 3.

   What does the Class A Evaporation Pan measure?

   • Water inflow
   • Water evaporation
   • Water quality

   Hint

   Think about the main function of the Class A Pan.

4. 4.

   True or False: A Floating Pan provides less accurate evaporation measurements than a Class A Pan.

   • True
   • False

   Hint

   Consider how placement affects accuracy.

5. 5.

   You have a Class A Evaporation Pan that shows a daily evaporation rate of 5 mm. How much total water would evaporate over a week?

   Hint

   Think about the daily measurement multiplied by the number of days.

6. 6.

   A lysimeter reads 30 mm of water loss in a garden. If precipitation adds back 10 mm, what's the net water loss in the soil?

   Hint

   Net loss is the loss minus what is returned by precipitation.