Geography

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Store
Places within a system where materials or energy are held for a time
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Transfer
Flows of water between stores in the hydrological cycle
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Precipitation
The deposition of moisture on the Earth's surface, in the form of dew, frost, rain, hail, sleet and snow
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Watershed
The dividing line between two drainage basins
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Channel network
The system of tributary streams that join an increasingly large river channel in a drainage basin
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River regime
The seasonal pattern of river discharge over the course of a year in response to precipitation, temperature, evapotranspiration, drainage basin characteristics
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Discharge
The quantity of water that passes a given point on a river bank within a set period of time
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Hydrograph
A graph showing a river's rate of discharge over time as it goes past a specific point
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Peak discharge
The point at which the river channel reaches its highest level of discharge after precipitation occurs
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Lag time
The difference in time between peak rainfall and peak discharge. Affected by permeability of rock, amount of vegetation, amount of rain, channel density (number of tributaries), relief
10 of 20
Surface run-off
When water flows over the surface of the ground
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Erosion
The wearing away of land by water, ice, wind and gravity
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Weathering
The chemical alteration and physical breakdown of rock in its original position
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Mass movement
The movement of weathered material down a slope without the direct action of running water
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Meander
A pronounced bend in a river
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Water quality
A measure of how fit water is for human consumption. Polluted water has low water quality
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Deposition
When sediment is dropped from the river. Ocurrs when there is a decrease in the energy, speed and discharge of the river
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Floodplain
An area of low land in the middle and lower course of the river that is susceptible to flooding when precipitation levels are high
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Soft engineering
Methods to avoid flood damage i.e afforestation, preserving marshes, zonation of urban areas
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Hard engineering
The building of structures such as dams, embankments (levees), flood relief channels, sluice gates to hold back/ divert floodwater
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Other cards in this set

Card 2

Front

Flows of water between stores in the hydrological cycle

Back

Transfer

Card 3

Front

The deposition of moisture on the Earth's surface, in the form of dew, frost, rain, hail, sleet and snow

Back

Preview of the back of card 3

Card 4

Front

The dividing line between two drainage basins

Back

Preview of the back of card 4

Card 5

Front

The system of tributary streams that join an increasingly large river channel in a drainage basin

Back

Preview of the back of card 5
View more cards

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