rivers and streams. what is the continental divide?
TRANSCRIPT
Rivers and Streams
What is the continental divide?What is the continental divide?
North Carolina RiversNorth Carolina Rivers
17 river basins, 4 entirely in NC
HeadwatersHeadwaters
Headwaters- the place where a river begins
The Cape Fear river begins south of Greensboro, where the Haw and Deep rivers meet.
Stream ErosionStream ErosionLoad- the sediment carried by a stream, Suspended load can make water appear
muddy or dirty.
Stream DepositionStream Deposition
Deltas & Alluvial Fans- Formed from stream deposition and can create new land. Are formed when the speed of the stream slows, near the mouth of the stream
Deltas are in the water and alluvial fans are on land
Canyon FormationCanyon Formation
When the land around a stream uplifts and the stream continues to cut into the original stream bed canyons can form.
FloodsFloods
Discharge- volume of water flowing through a stream at any given time Snow and rainfall can cause increased
discharge
Floodplain- an area along a river created from sediments deposited when the river overflowed its banks The new sediment is usually good for farming
FloodplainFloodplain
Changing Stream FlowChanging Stream Flow
Dams- barriers that redirect water flow; water can be stored for drinking, or used for electricity
Channel Alteration: Dredging- digging the channel of a river deeper Levees- barriers made from soil; can cause
water to run faster downstream and can break or be over topped
Dam
Levee
Hoover DamHoover Dam