Practice Estimation Using Digital Elevation Models (dems) (25.6) - Depression Storage

Practice: Estimation Using Digital Elevation Models (DEMs)

Lesson 25.6Depression Storage

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8 questions

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2 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What does DEM stand for?
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Think about what 'digital' refers to in mapping.
Question 2.
Name one software used for analyzing DEMs.
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Consider software commonly used in GIS.
3Question 3.
What is the primary purpose of utilizing DEMs in hydrology?
- To design urban areas
- To estimate depression storage
- To calculate population density
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Think about what features affect how water collects.
4Question 4.
True or False: The Planchon-Darboux method is used for identifying land cover.
- True
- False
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Consider the main function of this algorithm.
Question 5.
Given a DEM of a fictional watershed, apply the Planchon-Darboux method to identify potential water retention areas and explain the importance of these findings.
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Draw connections between elevation data and potential water storage.
Question 6.
Analyze the impact of using high-resolution DEMs versus low-resolution DEMs in estimating depression storage for hydrological modeling.
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Consider the detail in elevation data and its impact on modeling accuracy.

4 more questions in this section. Enroll free to practise them all.