19.5.3.1. Penman Method

Try these first

1. 1.

   Define evapotranspiration in your own words.

   Hint

   Think about both evaporation and plant transpiration.

2. 2.

   What does the psychrometric constant represent?

   Hint

   Consider how temperature affects moisture in the air.

3. 3.

   What does the Penman Method estimate?

   • Soil moisture
   • Evapotranspiration
   • Crop yield

   Hint

   Remember, we discussed Penman’s focus during class.

4. 4.

   True or False: The psychrometric constant is irrelevant to the Penman Method.

   • True
   • False

   Hint

   Review the functions of constants we covered.

5. 5.

   Using the Penman formula, estimate ET with variations of R_n, G, e_s, and e_a for a changing climate and explain the outcomes.

   Hint

   Review class notes on how each component interrelates strategically.

6. 6.

   Critically assess the advantages and disadvantages of the Penman Method compared to other ET estimation methods.

   Hint

   Consider why the Penman Method is favored in certain scenarios.