30.4.3. Green-Ampt Equation

Try these first

1. 1.

   What does K represent in the Green-Ampt Equation?

   Hint

   Think about how water moves through soil.

2. 2.

   True or False: The Green-Ampt Equation only applies to sandy soils.

   Hint

   Consider whether the equation can be used with other soil types.

3. 3.

   What is the main purpose of the Green-Ampt Equation?

   • To calculate evaporation rates
   • To model infiltration into soil
   • To determine groundwater levels

   Hint

   Think about what the equation is used for in hydrology.

4. 4.

   True or False: The cumulative infiltration F(t) must always be a decreasing value.

   • True
   • False

   Hint

   Consider the meaning of cumulative.

5. 5.

   Given different soil types and their parameters, propose a site for green infrastructure based on Green-Ampt Equation predictions and justify your choice.

   Hint

   Consider urban versus rural applications.

6. 6.

   Design an experiment utilizing the Green-Ampt Equation to compare infiltration rates of different materials used for permeable paving.

   Hint

   Think about how to measure F(t) and the changing moisture content.