Water masses at the Earth's surface
- Water masses at the Earth's surface
-
Water masses at the Earth's surface
reservoir volume (in millions of cubic kilometres) percent of total
oceans 1,370.0 97.25
ice caps and glaciers 29.0 2.05
deep groundwater* (750–4,000 metres) 5.3 0.38
shallow groundwater (less than 750 metres) 4.2 0.30
lakes 0.125 0.01
soil moisture 0.065 0.005
atmosphere** 0.013 0.001
rivers 0.0017 0.0001
biosphere 0.0006 0.00004
total 1,408. 7 100
*The total interstitial water in the pores of sediments is on the order of 50 × 106 to 300 × 106 km3.
**As liquid equivalent of water vapour.
Source: Adapted from Elizabeth Kay Berner and Robert A. Berner, The Global Water Cycle: Geochemistry and Environment, copyright 1987, Table 2.1, p. 13. Reproduced by permission of Prentice Hall, Inc., Englewood Cliffs, N.J.
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