9.2.2. Steps of Construction

Try these first

1. 1.

   What is the purpose of Isohyets?

   Hint

   Think about how rainfall is represented on a map.

2. 2.

   What is the first step in the construction of an Isohyetal map?

   Hint

   What do you need to define the area?

3. 3.

   What are isohyets used for?

   • A. To measure temperature
   • B. To indicate equal rainfall
   • C. To draw boundaries

   Hint

   Think about what isohyets represent on a map.

4. 4.

   True or False: The Isohyetal Method is the most accurate non-instrumental method for estimating areal rainfall.

   • True
   • False

   Hint

   Recall which methods are discussed to estimate rainfall.

5. 5.

   Given recorded rainfall at various stations, construct an Isohyetal map and estimate the area-weighted average rainfall. Explain your process step-by-step.

   Hint

   Follow the steps closely and ensure each stage is well-explained.

6. 6.

   Discuss how geographical features such as mountains might influence the formation of isohyets and affect rainfall estimation.

   Hint

   Consider how elevation and wind patterns interact with rainfall.