27.5. Empirical Infiltration Models

Try these first

1. 1.

   What does Horton's Equation represent?

   Hint

   Think about how the rate changes as it rains.

2. 2.

   Define sorptivity.

   Hint

   Connect it to its effect on initial water absorption.

3. 3.

   What does Horton's Equation model?

   • A constant infiltration rate
   • Exponential decay of infiltration rate
   • Water absorption efficiency

   Hint

   Remember the 'high-to-low' concept!

4. 4.

   True or False: Philip's Equation uses sorptivity as a factor.

   • True
   • False

   Hint

   Think about factors that influence how water moves.

5. 5.

   Devise a water management strategy applying both Horton's and Philip's equations for a region experiencing flash floods.

   Hint

   Think about the interaction between rainfall duration and soil characteristics.

6. 6.

   Analyze how the Green-Ampt Model could impact agricultural irrigation scheduling on different soil types throughout a growing season.

   Hint

   Consider how soil moisture dynamics change over time.