9.1.3 - Assumptions
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Practice Questions
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What is the assumption about rainfall distribution in Theissen's method?
💡 Hint: Think about how we assume rainfall behaves within a defined area.
What does 'adequate coverage' refer to in the context of rain gauges?
💡 Hint: Consider how data collection from different areas affects accuracy.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What does the assumption of uniform rainfall distribution imply?
💡 Hint: Think about how rain gauges represent larger areas.
True or False: Theissen's method considers topographic influences on rainfall distribution.
💡 Hint: What do we know about how mountains can disrupt rain?
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Challenge Problems
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Evaluate a catchment where only two rain gauge stations are placed far apart. Discuss the potential error in estimating average rainfall using the Theissen Polygon Method.
💡 Hint: Consider what the average would look like between the two stations.
Given a scenario where mountainous terrain affects rain distribution, suggest alternative methods or adjustments to the Theissen method to improve rainfall estimation.
💡 Hint: What methods or data sources can you think of that consider elevation?
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