6.7. Common Errors in Precipitation Measurement

Try these first

1. 1.

   What are two types of errors that can affect precipitation measurement?

   Hint

   Think about what could go wrong with the instruments and observers.

2. 2.

   Why is proper siting of rain gauges important?

   Hint

   Consider where trees and buildings are placed.

3. 3.

   What is one major cause of instrumental error in precipitation measurement?

   • Incorrect placement of the gauge
   • Faulty calibration
   • Observer distraction

   Hint

   Remember the basics of how instruments operate.

4. 4.

   Observation errors can occur due to which of the following?

   • Incorrect gauge type
   • Human misreading or delay
   • Improper siting

   Hint

   Think about the role of the observer.

5. 5.

   You have two rain gauges, one in an urban area and the other in an open field. Discuss how environmental differences may lead to different errors in rainfall data collection.

   Hint

   Consider the geography and urban planning.

6. 6.

   If a rain gauge has been consistently under-reporting rainfall by 20% due to calibration issues and is then moved to a new location with less wind obstruction, calculate how much rainfall will be accurately recorded if the actual amount is 100 mm.

   Hint

   Think about percentages and adjusting measurements.