7.1. Common Methods

Try these first

1. 1.

   Define runoff.

   Hint

   Think about where water goes after it rains.

2. 2.

   Name two types of runoff.

   Hint

   One type flows over land, the other involves the ground.

3. 3.

   What is runoff?

   • Water absorbed by plants
   • Water that flows over land to streams
   • Water vapor in the air

   Hint

   Think about what happens during a rainstorm.

4. 4.

   True or False: A higher Curve Number indicates better water absorption.

   • True
   • False

   Hint

   Consider the relationship between soil type and runoff.

5. 5.

   Analyze a hydrograph showing sharp peaks and steep falls. What does this indicate about the watershed’s runoff characteristics?

   Hint

   Consider how different land uses affect runoff timing.

6. 6.

   Given an SCS Curve Number, determine its implications for flood management strategies in urban planning.

   Hint

   Think about how urban environments change natural water absorption.