10.1. Features

Try these first

1. 1.

   What is runoff?

   Hint

   Think about rain and where that water goes.

2. 2.

   Name one factor that affects runoff volume.

   Hint

   Consider how different soil absorbs water.

3. 3.

   What portion of precipitation is considered runoff?

   • Only rainfall
   • Precipitation that flows after accounting for losses
   • Subsurface water

   Hint

   Recall what happens to rain that collects on the ground.

4. 4.

   True or False: A higher Curve Number indicates increased infiltration.

   • True
   • False

   Hint

   Think about impervious surfaces.

5. 5.

   Calculate the runoff volume from a watershed with 100 mm of precipitation, a Curve Number of 80, and an initial abstraction of 0.2 times S.

   Hint

   Understand the equation well to substitute and solve.

6. 6.

   Analyze how the increasing urbanization in a watershed might impact hydrograph shapes and what management strategies could be implemented.

   Hint

   Relate changes in the environment to runoff management solutions.