26.7. Infiltration in Hydrologic Modeling

Try these first

1. 1.

   What is infiltration?

   Hint

   Think about water movement from surface to soil.

2. 2.

   Name one method that uses infiltration in hydrologic modeling.

   Hint

   Remember, these are common hydrologic modeling methods.

3. 3.

   What is infiltration?

   • A process of water movement from the soil to the atmosphere
   • A process where water moves from the surface into the soil
   • The total volume of water that has infiltrated

   Hint

   Focus on where the water is moving to.

4. 4.

   True or False: Saturation-excess runoff is triggered when the rate of rainfall exceeds the infiltration capacity.

   • True
   • False

   Hint

   Think about how saturation impacts runoff.

5. 5.

   Given a watershed with a known infiltration rate, calculate the expected runoff during a heavy rain event if the rain exceeds the infiltration limit. Discuss the implications if the model underestimates infiltration.

   Hint

   Remember to focus on what happens when infiltration is less than rainfall.

6. 6.

   Analyze a case study of a recent flood event in your area. What role did soil infiltration play, and how could different modeling techniques have changed the flood predictions?

   Hint

   Look into historical data and model predictions regarding infiltration.