PPT Slide

I. Hydrologic Cycle

A. Reservoirs

B. Exchanges & turnover

How long does it take for ocean water to be ‘exchanged’?

(Assumes equilibrium)

Oceans:

Ice: centuries

Lakes: days-decades

Rivers: 1-20d

Atmosphere: 9d

5

Storage(km3) / Loss or Input (km3/yr)

= 1,350x106 / 0.425x106 = 3176 yrs

*numbers from previous figure

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