8.3.2 - Thiessen Polygon Method
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Practice Questions
Test your understanding with targeted questions
What is the Thiessen Polygon Method used for?
💡 Hint: Think about rainfall variability and averaging techniques.
Name one advantage of the Thiessen Polygon Method.
💡 Hint: Consider how the method uses gauge locations.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What primary advantage does the Thiessen Polygon Method offer over simpler methods?
💡 Hint: Think about what the method is designed to measure.
True or False: The Thiessen Polygon Method assumes that rainfall is uniform within each polygon.
💡 Hint: Recall the characteristics of the method.
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Challenge Problems
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Given a scenario with five rain gauge stations in a watershed with the following recorded rainfall amounts: Gauge A: 2.5 in, Gauge B: 3.1 in, Gauge C: 4.4 in, Gauge D: 3.6 in, Gauge E: 1.9 in. The area influenced by these gauges is 10 sq miles total. If Gauge A's polygon covers 3 sq miles, Gauge B covers 2 sq miles, Gauge C covers 1 sq mile, Gauge D covers 2.5 sq miles, and Gauge E covers 1.5 sq miles, calculate the mean precipitation.
💡 Hint: Ensure you calculate the weighted average correctly.
Describe a case where using the Thiessen Polygon Method would yield significantly different results from the Arithmetic Mean Method. Why would this be the case?
💡 Hint: Focus on how the spatial configuration of rainfall affects outcomes.
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