River processes, A level geography

The force of water removes rocks from the bed and bank

• hydraulic action

• attrition

• solution

• abrasion

Where the rivers load acts like sandpaper, removing pieces of rock as the load rubs against the bed and banks.

• hydraulic action

• abrasion

• attrition

• solution

how to measure hydraulic radius

• WP/ CSA

• CSA/WP

• CSA/ area

• area/CSA

channel flow in smooth, shallow and straight channel

name of the corkscrew movement that occurs in meanders

what is the name of a channel which has a varied yearly discharge, and a constantly changing shape

both vertical and horizontal flow, found in pools, riffles and winding channels

when rocks in the load knock together, breaking them down and gradually rounding them

• hydraulic action

• abrasion

• solution

• attrition

the largest particles, roll along the river bed

• traction

• saltation

• solution

• suspension

fine particles (e.g. clay) are suspended in the river

• saltation

• solution

• suspension

• traction