Practice Hargreaves Method (20.4.3) - Measurement of Evapotranspiration

Practice: Hargreaves Method

Lesson 20.4.3Measurement of Evapotranspiration

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9 questions

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6 sample questions

Question 1.
What does ET stand for in the Hargreaves equation?
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Think about what water loss processes are involved.
Question 2.
Which parameters are used in the Hargreaves Method?
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Consider the variables needed for calculating water loss.
3Question 3.
What does the Hargreaves Method primarily use to estimate evapotranspiration?
- Temperature and wind speed
- Temperature and radiation
- Just temperature
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Think about what elements contribute to water loss in plants.
4Question 4.
True or False: The Hargreaves Method is considered more complex than the Penman Method.
- True
- False
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Consider which method requires more inputs and calculations.
Question 5.
If the average temperature last month was 30°C and Ra was 20 MJ/m²/day, calculate the ET using the Hargreaves Method. Discuss how changes in Ra would affect the result.
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Revisit how the components affect evapotranspiration calculations.
Question 6.
Compare the results of using the Hargreaves Method versus the Thornthwaite Method when given the same climatic data. What factors might lead to difference in outputs?
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Recall how each method uses different parameters for its calculations.

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