Podcast
Questions and Answers
Which of the following is a morphometric parameter used in the analysis of a drainage basin?
Which of the following is a morphometric parameter used in the analysis of a drainage basin?
- Precipitation
- Elevation
- Vegetation coverage
- Drainage density (correct)
What does drainage density represent in the context of a watershed?
What does drainage density represent in the context of a watershed?
- The amount of rainfall received in the watershed
- The ratio of stream length to total watershed area (correct)
- The ratio of vegetation coverage to total watershed area
- The rate of erosion in the watershed
How does high drainage density affect flood peaks in a watershed?
How does high drainage density affect flood peaks in a watershed?
- It decreases flood peaks
- It increases flood peaks (correct)
- It has no effect on flood peaks
- It reduces the time of concentration
Which of the following is NOT a morphometric parameter used in the analysis of a drainage basin?
Which of the following is NOT a morphometric parameter used in the analysis of a drainage basin?
What is the relationship between drainage density and flood level in a watershed?
What is the relationship between drainage density and flood level in a watershed?
Which parameter is defined as the ratio of the total length of the stream over the contributing area in a drainage basin?
Which parameter is defined as the ratio of the total length of the stream over the contributing area in a drainage basin?
What is the potential effect of high drainage density on flood peaks in a watershed?
What is the potential effect of high drainage density on flood peaks in a watershed?
Which parameter affects both the time of concentration and magnitude of the flow in a watershed?
Which parameter affects both the time of concentration and magnitude of the flow in a watershed?
What does low drainage density in a watershed result in?
What does low drainage density in a watershed result in?
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Study Notes
Morphometric Parameters in Drainage Basin Analysis
- Drainage density is a morphometric parameter used in the analysis of a drainage basin.
- Drainage density represents the total length of streams in a watershed per unit area.
- High drainage density in a watershed results in higher flood peaks.
- Drainage density is inversely proportional to flood level in a watershed, meaning high drainage density leads to lower flood levels.
- Drainage density is defined as the ratio of the total length of the stream over the contributing area in a drainage basin.
- High drainage density can lead to a shorter time of concentration and a higher magnitude of flow in a watershed.
- Stream frequency, which is the number of streams per unit area, is a morphometric parameter that affects both the time of concentration and magnitude of the flow in a watershed.
- Low drainage density in a watershed results in lower flood peaks and a longer time of concentration.
- Circulatory ratio, which is the ratio of the circumference of the basin to its diameter, is NOT a morphometric parameter used in the analysis of a drainage basin.
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