3.5.1. Watershed Delineation and Characterization

Try these first

1. 1.

   Define a watershed.

   Hint

   Think of where rainwater flows into.

2. 2.

   What is a DEM?

   Hint

   It helps visualize topography.

3. 3.

   What is a Digital Elevation Model (DEM)?

   • A model of atmospheric pressure
   • A 3D representation of terrain elevation
   • A software tool for water simulation

   Hint

   Consider what kind of models are related to geography.

4. 4.

   True or False: The bifurcation ratio compares water quality among watersheds.

   • True
   • False

   Hint

   Think about the definition of bifurcation ratio.

5. 5.

   Analyze a given watershed shape with an area of 150 km² and a length of 10 km. Calculate its form factor.

   Hint

   Use the formula to compare area and length pressures.

6. 6.

   In a watershed with a bifurcation ratio of 3, if there are 6 first-order streams, how many second-order streams would you expect?

   Hint

   Think about the ratio and how to apply it.