20.3 - Methods of Measurement of Evapotranspiration
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Practice Questions
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What does ET stand for?
💡 Hint: Consider the two processes involved in ET.
List one advantage of using lysimeters.
💡 Hint: Think about measurement precision.
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Interactive Quizzes
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What does ET stand for in hydrology?
💡 Hint: Think of both evaporation and transpiration.
The energy balance method is primarily concerned with what?
💡 Hint: Relate it to conservation principles.
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Challenge Problems
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Given the rainfall data and ET measurements for a region over a month, calculate the remaining water in the soil after accounting for runoff and deep percolation. Consider an input of 120 mm, runoff of 25 mm, and deep percolation of 15 mm with an ET of 60 mm.
💡 Hint: Follow the water cycle's budgeting approach.
Research and analyze the efficiency differences between lysimeter measurements and indirect estimation methods like the Penman equation in a specific crop, summarizing your findings.
💡 Hint: Consider both pros and cons standing for each method.
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