Table of Contents
- 1 What is the boundary between drainage basins called?
- 2 What is the high lying area separating two drainage basins?
- 3 What are the 4 types of drainage patterns?
- 4 What is the drainage pattern associated with steep slopes?
- 5 What are the major types of drainage patterns?
- 6 What is river Downcutting?
- 7 What is the difference between a drainage basin and a watershed?
- 8 What do you need to know about a catch basin?
What is the boundary between drainage basins called?
Drainage basin, also called catchment area, or (in North America) watershed, area from which all precipitation flows to a single stream or set of streams. The boundary between drainage basins is a drainage divide: all the precipitation on opposite sides of a drainage divide will flow into different drainage basins.
What is the high ground between two watersheds called *?
Cards
| Term Moving _________ is the major agent of the erosion that has shaped Earth’s surface | Definition water |
|---|---|
| Term A _____________ is a land area from which a river and its tributaries collect their water. | Definition drainage basin |
| Term A _________ is the high ground between two drainage basins. | Definition divide |
What is the high lying area separating two drainage basins?
➢ Watershed: The high lying areas that separate different drainage basins. ➢ Interfluves: Spurs that separate different tributaries in a river system. ➢ Tributary: Smaller stream that joins main stream. ➢ Confluence: Where 2 tributaries meet.
What is the lowest point in a drainage basin?
A pour point is the point at which water flows out of an area. This is usually the lowest point along the boundary of the drainage basin. The boundary between two basins is referred to as a drainage divide or watershed boundary.
What are the 4 types of drainage patterns?
there are 4 types of drainage patterns on the basis of their flowing pattern-dendritic, trellis, radial and rectangular.
Which is the most common type of drainage pattern?
dendritic drainage pattern
A dendritic drainage pattern is the most common form and looks like the branching pattern of tree roots. It develops in regions underlain by homogeneous material.
What is the drainage pattern associated with steep slopes?
Parallel drainage system is a pattern of rivers caused by steep slopes with some relief. Because of the steep slopes, the streams are swift and straight, with very few tributaries, and all flow in the same direction. Parallel drainage patterns form where there is a pronounced slope to the surface.
Which is the general term for channelized water flow regardless of size?
Geologists refer to all channelized water as “stream” regardless of size.
What are the major types of drainage patterns?
Drainage patterns
- Dendritic drainage pattern.
- Parallel drainage pattern.
- Trellis drainage pattern.
- Rectangular drainage pattern.
- Radial drainage pattern.
- Centripetal drainage pattern.
- Deranged drainage pattern.
- Annular drainage pattern.
What is drainage pattern give example?
A drainage pattern which looks like tree branches with lots of twigs is known as Dendritic drainage pattern. For example, the rivers of northern plain. Radial drainage patterns form when rivers originate from a hill and flow in all directions. For example, the rivers originating from the Amarkantak.
What is river Downcutting?
An important characteristic of a river is its ability to cut downward into bedrock and form a narrow V-shaped valley, a process known as downcutting or incision. As downcutting occurs, the river channel progressively reaches lower elevation. Downcutting is a form of erosion.
What is the most common drainage pattern?
A dendritic drainage pattern is the most common form and looks like the branching pattern of tree roots. It develops in regions underlain by homogeneous material. That is, the subsurface geology has a similar resistance to weathering so there is no apparent control over the direction the tributaries take.
What is the difference between a drainage basin and a watershed?
The word “watershed” is sometimes used interchangeably with drainage basin or catchment. Ridges and hills that separate two watersheds are called the drainage divide. The watershed consists of surface water –lakes, streams, reservoirs, and wetlands –and all the underlying groundwater. Larger watersheds contain many smaller watersheds.
Why do some drainage basins have higher density than others?
This is the total length of streams in a drainage basin divided by the area of the basin. Drainage basins characterised by impermeable rock and soils tend to have higher drainage density due to the lack of infiltration and percolation. This means that water enters a channel quickly, leading to an increase in discharge.
What do you need to know about a catch basin?
A catch basin has a grate on top and a drainage pipe that slopes away from the basin. This box is set into the ground at a low point on the property. Catch basins help maintain proper drainage and catch debris, which helps prevent pipes downstream from becoming clogged.
What are the benefits of a circular drainage basin?
Conversely, a small drainage basin means that water has a shorter distance to travel and will result in a shorter lag time. Circular drainage basins mean that all points on the watershed are equidistant from the channel and this will lead to a shorter lag time and higher peak discharge.