15.7. Rainfall Data Processing and Analysis

Try these first

1. 1.

   Define what the Arithmetic Mean Method is.

   Hint

   Think about what 'average' means.

2. 2.

   What is meant by areal rainfall?

   Hint

   Consider how rainfall is distributed beyond just a point.

3. 3.

   What is the purpose of the Arithmetic Mean Method?

   • To determine maximum rainfall
   • To find average rainfall
   • To assess rainfall distribution

   Hint

   Remember that 'mean' refers to the average.

4. 4.

   True or False: Skewness measures the distribution's asymmetry.

   • True
   • False

   Hint

   Think about how we visually assess data shapes.

5. 5.

   You are provided with rainfall data from 7 different gauges: 10 mm, 25 mm, 15 mm, 30 mm, 20 mm, 5 mm, and 35 mm. Calculate the mean and standard deviation. Discuss what these results indicate about the rainfall variability.

   Hint

   Use the statistical formulas to derive your answers.

6. 6.

   Propose a scenario where the Thiessen Polygon Method could be effectively utilized in urban planning, particularly related to water drainage systems.

   Hint

   Think about how rainfall patterns might influence the design of infrastructure.