20 terms

Stores in the water cycle

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Atmosphere
Water held in the air as gas, clouds, precipitation
Hydrosphere
Discontinuous layer of water at or near the earth's surface. Includes all liquid and frozen surface water, groundwater, atmospheric water vapour
Lithosphere
Solid outer section of Earth, including Earth's crust as well as the underlying cool dense and rigid upper part of mantle
Cryosphere
Frozen water in the Earth's system. Included frozen parts of ocean, glaciers, and ice sheets
The Oceans
Dominate the amount of water available, 97% of all water
3%
Amount of World's water that is freshwater
12,900km cubed
Amount of water found in the atmosphere, 8% of all easily accessible freshwater
79%
Amount of freshwater locked up in ice sheets and glaciers
Sea ice
Varies between summer and winter, growing in the winter and shrinking in the summer.
Arctic
An example of an area of extensive sea ice - part of the cryosphere
Ocean pH
Is 8.14 but is falling, linked to the increase in atmospheric carbon and ocean acidification
20%
Amount of freshwater found in the GROUND
Antarctica and Greenland ice
Contains more than 99% of the freshwater ice on planet Earth
Ice sheet
A mass of glacial land ice extending more than 50,000km2
Ice Shelves
Platforms of ice where ice sheets and glaciers extend out over the oceans
Rivers
Act as both a store and flow of water
Permafrost
Soil, rock or sediment that is frozen for more than two consecutive years
Ground water
Water that collects underground in the pore spaces of rock
Cloud
A visible mass of water droplets or ice crystals suspended in the atmosphere
Water vapour
The gaseous phase of water. It is one state of water within the hydrosphere. Produced from evaporation or liquid water or from the sublimation of ice
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