23.1.1. Potential vs. Actual Evapotranspiration

Try these first

1. 1.

   What does PET stand for and what does it represent?

   Hint

   Think about the maximum amount of water that can be evaporated.

2. 2.

   Which is typically higher, AET or PET in a drought?

   Hint

   Remember the definitions of water-limited conditions.

3. 3.

   What does the acronym AET stand for?

   • Actual Evapotranspiration
   • Potential Evapotranspiration
   • Annual Evapotranspiration

   Hint

   Focus on the word 'actual'.

4. 4.

   In which condition is AET less than PET?

   • True
   • False

   Hint

   Think about whether water is limiting the rate.

5. 5.

   Design an irrigation strategy based on AET and PET values for a farmer whose field shows significantly lower AET during summer.

   Hint

   Consider how deep the water should go and how often.

6. 6.

   Assess how increased temperatures due to climate change can globally affect AET and PET and outline one possible agricultural adaptation strategy.

   Hint

   Think about coping with both rates adjusting.