the visible part of the hydrological system; surface flows and then recharging aquifers
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green water flow
water intercepted, stored and released by vegetation by evaporation and transpiration
2 of 12
grey water
polluted water
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water supply
is from surface stores and groundwater sources
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freshwater
a finate resource since only around 1% of freshwater is easily available for human use
5 of 12
water footprint
indicates how much is required by consumers, from the water they use themselves and from the products they use
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advection
the movement of water in solid, liquid or vapour states through the atmosphere. without this process, water that evaporated over oceans could not precipiate over land
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water scarcity
supply of water per person falls below 1000m3 per year
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physical water scarcity
reached when 60% of river flows are diverted for agricultural, industrial and municipal purposes. Globally 75% of water is now in use
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economic water scarcity
where less than 25% of rivers are used and theer is abundant supply potential however water is not accesible for the poorest people
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water stress
water supply per person is below 1700m3 per year
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water security
reliable and secure access to water over time
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Other cards in this set
Card 2
Front
water intercepted, stored and released by vegetation by evaporation and transpiration
Back
green water flow
Card 3
Front
polluted water
Back
Card 4
Front
is from surface stores and groundwater sources
Back
Card 5
Front
a finate resource since only around 1% of freshwater is easily available for human use
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