Drainage basin

Watershed

River discharge

Velocity

Gradient

Turbulent flow

Drainage pattern

Dendritic drainage pattern

Radial drainage pattern

Trellised drainage pattern

Deranged drainage pattern

Dendritic drainage pattern

Radial drainage pattern

Trellis drainage pattern

Deranged drainage pattern

Erosion

Hydraulic action

Cavitation

Abrasion

Attrition

Solution

Vertical erosion

Lateral erosion

Headward erosion

Load

Solution

Suspension

Saltation

Traction

Bedload

Alluvium

Long profile

Base level

Youthful/Upper course

Youthful/Upper course

Mature/Middle course

Mature/Middle course

Old/Lower Course

Old/Lower Course

Long profile

V-shaped valley

V-shaped valley

Waterfall

Waterfall

Meanders

Meanders

Ox-bow lake

Oxbow lake

Source

Tributary

Confluence

Mouth

Flood plain

Flood plain

Flood plain

Levee