geo drainage basin Flashcards
Why is the V-shaped Valley Friction greater at the source of a river?
The V-shaped Valley Friction is greater at the source because the load causes an unevenness in the bed of the river, creating more surface area for the water to come in contact with.
What is the drainage basin also known as?
The drainage basin is also known as the ‘Catchment Zone’
What is the boundary of the drainage basin also known as?
The boundary of the drainage basin is also known as the ‘WaterShed’
What is the watershed?
The watershed is a ridge of highland which separates one drainage basin from another.
What is the term used for the beginning of the river?
The term used for the beginning of the river is the source.
What is the term used for the end of the river?
The term used for the end of the river is the mouth.
Where would the drainage density be found higher?
The drainage density would be found higher in an area with many tributaries.
What causes a high density or amount of tributaries?
Impermeable rock causes a high density or high amount of tributaries.
Where would the drainage density be found lower?
The drainage density would be found lower in an area with less impermeable rock or less tributaries.
What are the three types of drainage patterns?
The three types of drainage patterns are: Radial, Trellised and Dendritic.
What is a Radial pattern?
A Radial pattern is a pattern that has an appearance of the spokes of a wheel.
What is a Trellised pattern?
A Trellised pattern takes the appearance of appearing rectangular and is perpendicular.
What is a Dendritic pattern?
A Dendritic pattern is a pattern that looks like a tree trunk.
