Practice Empirical Methods - 20.4 | 20. Measurement of Evapotranspiration | Hydrology & Water Resources Engineering - Vol 2
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20.4 - Empirical Methods

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Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What is the Blaney-Criddle equation used for?

💡 Hint: Look for the equation involving k, p, and T.

Question 2

Easy

Define the Thornthwaite method.

💡 Hint: Focus on temperature and its importance in this context.

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 purpose of empirical methods in estimating ET?

  • To provide direct measurements
  • To use observed data for estimations
  • To replace all measurement methods

💡 Hint: Think about why we use formulas instead of measuring directly.

Question 2

True or False: The Hargreaves method is less accurate than the Thornthwaite method.

  • True
  • False

💡 Hint: Recall the characteristics of both methods.

Solve 1 more question and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

A regional agricultural extension office is analyzing ET for potential irrigation planning. They have data showing the monthly average temperature as 30°C, the percentage of daylight in July as 60%, and a crop coefficient of 1.2. Use the Blaney-Criddle method to calculate ET.

💡 Hint: Start with the equation definition and plug in the values carefully.

Question 2

A soil and climate research team is comparing the Thornthwaite and Hargreaves methods. They observe monthly temperatures averaging 20°C in winter. Discuss which of the two methods might give them a better estimate and why.

💡 Hint: Think about the factors each method considers.

Challenge and get performance evaluation