Practice Theissen Polygon Method - 9.1 | 9. Theissen’s and Isohyetal Methods | Hydrology & Water Resources Engineering - Vol 1
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Knowledge

9.1 - Theissen Polygon Method

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Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What is the primary purpose of the Theissen Polygon Method?

💡 Hint: Think about how rainfall data from multiple sources can be combined.

Question 2

Easy

List one merit of using the Theissen Polygon Method.

💡 Hint: What makes something easy to use in practice?

Practice 4 more questions and get performance evaluation

Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

What is the main basis of the Theissen Polygon Method?

  • Geometric
  • Arithmetic
  • Statistical

💡 Hint: Think about how shapes define regions in this method.

Question 2

True or False: The Theissen Polygon Method accounts for topographical variations in rainfall.

  • True
  • False

💡 Hint: Recall the limitations we discussed in class.

Solve 1 more question and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

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.

Question 2

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.

Challenge and get performance evaluation