Water and Rivers Definitions

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River System
Is where streams and smaller rivers(tributaries) drain from the highest point and join at the confluence to make a river. A series of channels.
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Watershed
A watershed is the highest point that surrounds the drainagebasin/catchment area. It seperates one basin from another.
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Drainage Basin
......is an area of land surrounded by a watershed; it is also known as a Catchment area. It is drained by a single river system.
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Confluence
joining point
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Process(es)
....the way something happens
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leaf drip
....when the water becomes too heavy for the leaf, so the leaf gives way and the water flows off
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Stem flow
....water flows down the trunk
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Infiltration
.....water soaks into the soil
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Infiltration rate
....how fast water sinks in. It is measured in millimetres per hour. It depends on the type of soil ( cley /slow and grit/fast)
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Percolation
....is the downward movement after infiltration. the water will go through the soil and then through the rock if it is porous/ permeable
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water table
....is the divide between saturated rock below and unsaturated above both with the seasons and from year to year because it is affected by climatic variations and by the amount of precipitation and by withdrawing excessive amounts of water from wells
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Precipitation
The definition of precipitation is any form of water - liquid or solid - falling from the sky.
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Other cards in this set

Card 2

Front

A watershed is the highest point that surrounds the drainagebasin/catchment area. It seperates one basin from another.

Back

Watershed

Card 3

Front

......is an area of land surrounded by a watershed; it is also known as a Catchment area. It is drained by a single river system.

Back

Preview of the back of card 3

Card 4

Front

joining point

Back

Preview of the back of card 4

Card 5

Front

....the way something happens

Back

Preview of the back of card 5
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