8.3. Methods for Estimating Mean Precipitation

Try these first

1. 1.

   What is the formula for the Arithmetic Mean Method?

   Hint

   It's a direct average of rainfalls from multiple stations.

2. 2.

   Name one advantage of the Arithmetic Mean Method.

   Hint

   Think about why we might use a faster method.

3. 3.

   What is the primary advantage of the Arithmetic Mean method?

   • Accuracy
   • Simplicity
   • Comprehensiveness

   Hint

   Consider which method requires least effort.

4. 4.

   True or False: The Thiessen Polygon Method assumes uniform rainfall within each polygon.

   • True
   • False

   Hint

   Reflect on how individual polygons relate to the gauges within them.

5. 5.

   Given rainfall data from five stations, determine the mean precipitation using the Thiessen Polygon Method, given the spatial configuration of the gauges.

   Hint

   Focus on how close each station is to each polygon's area.

6. 6.

   In a region experiencing unexpected heavy rainfall, discuss how the choice of method might impact flood preparation.

   Hint

   Consider how different methods can change the result seen on a map during a weather event.