9 Questions
Which of the following is a morphometric parameter used in the analysis of a drainage basin?
Drainage density
What does drainage density represent in the context of a watershed?
The ratio of stream length to total watershed area
How does high drainage density affect flood peaks in a watershed?
It increases flood peaks
Which of the following is NOT a morphometric parameter used in the analysis of a drainage basin?
Precipitation intensity
What is the relationship between drainage density and flood level in a watershed?
Low drainage density leads to higher flood levels
Which parameter is defined as the ratio of the total length of the stream over the contributing area in a drainage basin?
Drainage density
What is the potential effect of high drainage density on flood peaks in a watershed?
Increase in flood peaks
Which parameter affects both the time of concentration and magnitude of the flow in a watershed?
Drainage density
What does low drainage density in a watershed result in?
Decrease in flood level
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.
Test your knowledge on morphometric analysis of drainage basins using GIS in the Gilgel Abay watershed, Lake Tana Basin, Ethiopia. Explore topics such as total projected area, overland flow contribution, drainage density, and more. Challenge your understanding of stream order and its impact on channel segments. Get ready to dive into Applied Water Science!
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