Features of upper valley : - >river? - >load? - >erosion & transport?

``` Steep sided V-shaped River = narrow & shallow & vertical erosion Load = large & angular HYDRAULIC ACTION, ABRASION, ATTRITION TRACTION, SALTATION ```

Features of middle reaches : - > river? - > load? - > erosion & transport?

``` Wider, flatter floor River = wider & deeper Load = smaller & less angular VERTICAL EROSION DECREASES, LATERAL EROSION INCREASES SUSPENSION ```

Drainage Basin Features Flashcards by millie jones

Source

The point at which a river starts

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Watershed

Edge of the drainage basin (the boundary)

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Confluence

The point at which tributaries join the main river

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Tributaries

Smaller rivers that join the main channel/river

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Mouth

Where the river enters the sea/lake

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Features of upper valley :

> river?
> load?
> erosion & transport?

Steep sided
V-shaped
River = narrow &amp; shallow &amp; vertical erosion
Load = large &amp; angular 
HYDRAULIC ACTION, ABRASION, ATTRITION
TRACTION, SALTATION

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Features of middle reaches :

> river?
> load?
> erosion & transport?

Wider, flatter floor
River = wider &amp; deeper
Load = smaller &amp; less angular
VERTICAL EROSION DECREASES, LATERAL EROSION INCREASES
SUSPENSION

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Features of lower reaches :

> river?
> load?
> deposition?

Very wide & flat
River = wide & deep & large sediment load
Load = small & rounded
Deposition = large load deposited

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Drainage basin

An are of land drained by a river

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Drainage Basin Features Flashcards

(9 cards)