Transcript The Drainage Basin System Part 1

The Drainage Basin
System
Part 1
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Key Questions
What is a drainage basin?
How does the drainage basin system operate?
What is a flood hydrograph?
What factors influence the shape of a
flood hydrograph?
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What is a drainage basin?
Mouth
Where the river
flows into the sea,
or sometimes a
lake.
Watershed
The boundary
dividing one
drainage basin
from another; a
ridge of high
land.
Confluence
The point at which two rivers join.
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Tributary
A river which
joins a larger
river.
Catchment
The area from
which water
drains into a
particular drainage
basin.
Source
The upland area
where the river
begins.
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Do you know your drainage basin terminology?
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Match the label to the correct letter
Watershed
C
Confluence
Tributary
B
Source
D
A
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Catchment
Sketch the river showing its catchment. Add the following
labels to your drawing: watershed, confluence, tributary.
Press play on the animation to see an example.
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