20.3.2.b. Energy Balance Method

Try these first

1. 1.

   Define evapotranspiration.

   Hint

   Think about both processes involved in moisture loss.

2. 2.

   What does the term 'net radiation' refer to?

   Hint

   It's related to the energy exchange in the environment.

3. 3.

   What is the main purpose of the Energy Balance Method?

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

   Hint

   Focus on the ultimate goal of managing water resources.

4. 4.

   True or False: Latent heat flux is not significant when calculating ET.

   • True
   • False

   Hint

   Remember the role of energy in moisture loss.

5. 5.

   Given a net radiation (R) of 500 W/m², soil heat flux (G) of 100 W/m², derive the latent heat flux assuming no sensible heat flux is present.

   Hint

   Ensure you correctly apply the conservation of energy principle.

6. 6.

   A researcher noted that the latent heat flux was significantly increasing in an area with little rainfall. What might this indicate about the local environmental conditions?

   Hint

   Think about environmental factors influencing ET.