J

Pi t

EvEavpaoration 502.8

Precipitation

EvEavpaoration 502.8

Groundwater flow 2.2

Groundwater flow 2.2

Ocean '

Figure 15.1 A simplified hydrologic cycle. Units are given in thousands of cubic kilometers (adapted from UNEP 2002b).

Table 15.1 Global water distribution in the hydrologic cycle.
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