G101_05_HydrologicCycle

G101_05_HydrologicCycle - Hydrologic Cycle 1. 2. 3. 4. 5....

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1 Hydrologic Cycle 1. Distribution of water 2. Hydrologic cycle model 3. Water phase change 4. Surface water environment 5. Groundwater 6. Atmospheric water and humidity 7. Clouds Distribution: land & water hemispheres Hydrologic cycle model: terms Precipitation: rain, snow, sleet, hail Evaporation: phase change of water to water vapor Transpiration: the movement of water vapor out from the pores of leaves Advection: horizontal movement of air or water from one place to another Runoff: surplus surface water after soil is saturated Hydrologic cycle model Extent: – troposphere, across surface and to several km below the surface Timeframes: – Has been operating in dynamic equilibrium for billions of years – Average transit time for water in atmosphere (evap to precip) is 10 days – Average transit time for deep ocean circulation, groundwater aquifers and glacial ice is ~10,000 years Hydrologic cycle model
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2 Water phases Water phases-solid Surface water environment: terms Infiltration: penetration of the soil surface Percolation: water penetration through soil or rock Water table:
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G101_05_HydrologicCycle - Hydrologic Cycle 1. 2. 3. 4. 5....

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