Surface water Flashcards
What is the primary factor
Soil condition and rainfall intensity
What is a drainage basin?
The land area that contributes water to a river system
Which of the following increases stream flow velocity?
Steep gradient and narrow, rough channel
What is a nickpoint in a river profile?
A point of sudden elevation drop caused by resistant rock
What is meant by a stream’s competence?
The largest particle size it can transport
Which river landscape forms when a stream is near base level and shifts side to side?
Floodplain
What causes a stream to deposit part of its load?
Decrease in water volume or speed
What is a levee?
A natural ridge formed by sediment deposition during floods
How does urbanization affect flooding risk?
It increases runoff, leading to higher peak discharge
What is the main goal of flood control systems like dams and channelization?
To manage and reduce flood impacts
