9.1 - Theissen Polygon Method
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Practice Questions
Test your understanding with targeted questions
What is the primary purpose of the Theissen Polygon Method?
💡 Hint: Think about how rainfall data from multiple sources can be combined.
List one merit of using the Theissen Polygon Method.
💡 Hint: What makes something easy to use in practice?
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the main basis of the Theissen Polygon Method?
💡 Hint: Think about how shapes define regions in this method.
True or False: The Theissen Polygon Method accounts for topographical variations in rainfall.
💡 Hint: Recall the limitations we discussed in class.
1 more question available
Challenge Problems
Push your limits with advanced challenges
In a catchment area with five rain gauges, construct the Theissen polygons based on the following coordinates and rain measurements: Gauge A(1, 1, 10mm), Gauge B(3, 1, 5mm), Gauge C(2, 3, 20mm), Gauge D(4, 2, 15mm), and Gauge E(1, 4, 10mm). Provide a rainfall estimate based on your polygons.
💡 Hint: Ensure you measure the areas accurately and consider the contribution of rainfall from each gauge.
Evaluate how the assumption of homogeneous rainfall impacts the output of rainfall estimates in a scenario where significant elevation changes occur across a catchment.
💡 Hint: Reflect on how mountains or valleys might alter rainfall distribution.
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