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The Water Cycle. By: Yao Yao and Theresa Zajac. Atmosphere. Ocean Evaporation 434000 km 3 /year . Storage: 13000 km 3. Precipitation to Ocean 398000 km 3 /year. Lands Evaporation 71000 km 3 /year. Precipitation to Lands 107000 km 3 /year. Residence Time=Amount/Flux. Surface water.

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the water cycle

The Water Cycle

By: Yao Yao and Theresa Zajac

atmosphere
Atmosphere

Ocean Evaporation

434000 km3/year

Storage: 13000 km3

Precipitation to Ocean

398000 km3/year

Lands Evaporation

71000 km3/year

Precipitation to Lands

107000 km3/year

Residence Time=Amount/Flux

surface water
Surface water

Precipitation

398000 km3/y

Ocean:

1370 million km3

Evaporation

434000 km3/y

3000 years

Runoff

36000 km3/y

Precipitation

Runoff

42600 km3/y

Lakes:

3608600 km3

Evaporation

Runoff

86 years

Precipitation

Runoff

6800 km3/y

Rivers:

1700 km3

Evaporation

Runoff

3 months

glaciers ice caps and permanent snow
Glaciers, Ice Caps, and Permanent Snow

Ice Caps, Glacier, & Perm. Snow:

24,064,000 km3

2188 years

Melting

11000 km3/year

Source: Gleick, P. H., 1996: Water resources. In Encyclopedia of Climate and Weather, ed. by S. H. Schneider, Oxford University Press, New York, vol. 2, pp.817-823.

ground water
Ground Water
  • Shallow – 100-200 years
  • Deep – Up to 10,000 years

Source: Gleick, P. H., 1996: Water resources. In Encyclopedia of Climate and Weather, ed. by S. H. Schneider, Oxford University Press, New York, vol. 2, pp.817-823.