8.5 - Optimum Number of Rain Gauges
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Practice Questions
Test your understanding with targeted questions
What is a rain gauge?
💡 Hint: Think about what instrument collects precipitation data.
Why do we need multiple rain gauges?
💡 Hint: Consider the differences in rainfall across a wider region.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What does the coefficient of variation help determine?
💡 Hint: Think about how variability affects measurement needs.
True or False: More rain gauges always lead to better data.
💡 Hint: Reflect on the balance between data quality and cost.
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Challenge Problems
Push your limits with advanced challenges
A region has a coefficient of variation of rainfall measured at 0.2, and the allowable error is set at 10%. Using the formula presented, how many rain gauges should be deployed?
💡 Hint: Use the equation step by step to find your answer.
Discuss how external factors like economic constraints and environmental conditions might influence the decision on the number of rain gauges.
💡 Hint: Consider impacts on budget and data accuracy.
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