16.3.2. ISI Standard Pan (Modified Class A Pan)

Try these first

1. 1.

   What is an evaporation pan?

   Hint

   Think about what it measures.

2. 2.

   What does the ISI Standard Pan modify from the Class A pan?

   Hint

   Consider what an enclosure might protect from.

3. 3.

   What is the primary purpose of the ISI Standard Pan?

   • To measure rainfall
   • To measure evaporation
   • To measure temperature

   Hint

   Think about the context of water loss measurement.

4. 4.

   True or False: The ISI Standard Pan is designed to provide more accurate evaporation readings than a Class A pan.

   • True
   • False

   Hint

   Reflect on the modifications discussed.

5. 5.

   A study finds that evaporation measurements from an ISI Standard Pan are consistently lower than those from a Class A Pan in open air. Analyze potential reasons for this discrepancy.

   Hint

   Consider the environmental factors affecting evaporation.

6. 6.

   Design an experiment to compare the evaporation rates between a Class A pan and an ISI Standard Pan under identical atmospheric conditions.

   Hint

   Think about controlling for all variables in your design.