River landscapes keywords

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  • Created by: charlo129
  • Created on: 17-11-18 17:50
rocks carried along by the river wear down the river bed and banks
abrasion
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rocks being carried by the river smash together and break into smaller,rounder particles
attrition
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the side to side cross-section of a river channel and/river
cross-profile
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the quantity of water that passes a given point on a stream or river-bank within a given period of time
discharge
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raised banks constructed along the river;they make the river deeper so it can hold more water,are expensive and protect land around them
embankments
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the tidal mouth of a river where it meets the sea;wide banks of deposited mud are exposed at low tide
estuary
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occurs when river discharge exceeds river channel capacity and water spills out of the channel onto the floodplain
flood
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the relatively flat area forming the valley floor on either side of a river channel,which is sometimes flooded
floodplain
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attemps to organise the flood defences so that the land near the river that often floods is not built on
floodplain zoning
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building new artificial channels which are used when a river is at maximum discharge;help to reduce flooding risk
flood relief channels
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the predicted frequency of floods in the area
flood warning
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processes relating to erosion, transport and deposition by a river
fluvial processes
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a narrow, steep sided valley, often formed as a waterfall retreats upstream
gorge
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building artificial structures using rock,concrete and steel to reduce the impact of river processes
hard engineering
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the force of the river against the banks can cause air to be trapped in cracks, the pressure weakens the banks and wears them away
hydraulic action
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a graph that shows the discharge of a river, related to rainfall, over a period of time
hydrograph
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a series of ridges projecting out on alternate sides of a valley around a rivers course
interlocking spurs
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sideways erosion by a river on the outside of a meander channel,it leads to the widening of the valley and contributes to the formation of the floodplain
lateral erosion
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embankments of sediment along the bank of a river, it is formed naturally by regular flooding or be built by people to protect the area against flooding
levees
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the gradient of a river from its source to its mouth
long profile
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a pronounced bend in a river
meander
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an arc-shaped lake which has been cut off from a meandering river
ox-bow lake
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rain,hail,sleet or slow falling from the atmosphere
precipitation
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type of transportation where particles bounce down the river bed
saltation
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using natural enviroment surrounding river, using schemes that work with the rivers natural processes, cheap and sustainable anddoesnt interfere directly with the river's flow
soft engineering
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soluable particles are dissolved into the river
solution
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removing meanders from a river to make the river straighter to make the water flow faster downstream so it doesnt build up and flood the river
channel straightening
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fine solid material held in the water while the water is moving
suspension
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the rolling of boulders and pebbles along the river bed
traction
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downward erosion of a river bed
vertical erosion
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Other cards in this set

Card 2

Front

rocks being carried by the river smash together and break into smaller,rounder particles

Back

attrition

Card 3

Front

the side to side cross-section of a river channel and/river

Back

Preview of the front of card 3

Card 4

Front

the quantity of water that passes a given point on a stream or river-bank within a given period of time

Back

Preview of the front of card 4

Card 5

Front

raised banks constructed along the river;they make the river deeper so it can hold more water,are expensive and protect land around them

Back

Preview of the front of card 5
View more cards

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