Exam 17: Fluvial Processes and Landforms

Channels that add their flow to a trunk stream are called _______________. ​

The general term for sediments deposited by streams, regardless of the type or size of material, is _______________. ​

Drainage density will be greater in areas with _____. ​

The average number of years between past stream flow events that equaled or exceeded various discharges is called a(n)_______________ (two words). ​

Stream capacity is the maximum size of rock particles that a given stream is able to transport. ​

Channel-bounding ridges composed of sediment deposited during floods are called ______________ (two words).

Reservoirs behind dams eventually fill with sediment that the water naturally would have transported downstream.

Traction within a stream refers to _____. ​

The ultimate base level for most stream action is _____. ​

Discharge is volume multiplied by velocity. ​

The Mississippi River delta is what kind of delta?

An increase in stream velocity can be caused by _____. ​

At a meander, erosion is greatest at the point bar. ​

Compared with the rise of a stream hydrograph leading up to the peak discharge, the return to an average flow typically occurs much more quickly. ​

The inside of a meander bend usually has a _____. ​

Interception of precipitation by vegetation allows greater infiltration. ​

When a meander cut-off occurs during a flood, a(n)_____ can be formed. ​

Streams that flow in interweaving strands that split and rejoin around sand and gravel bars are called _______________ channels.

If a river had a 10-year flood this year, it could also have a 10-year flood next year. ​

Streams can lengthen their drainage courses by the process of headward erosion. ​