Chap13_introtolandforms.sakai

Chap13_introtolandforms.sakai - The Hydrologic Cycle...

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The Hydrologic Cycle Storage areas Storage areas Water Inventory of the Planet
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Groundwater: 0.5% of all world water Fresh water beneath the land surface Located almost everywhere 2.5 times more than water on land (rivers, lakes) Comes from the surface
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Groundwater -G roundwater existence and flow depends on soil/rock’s… - Porosity - Pore spaces within soil/rock - More pores = more space to store water - Permeability - Capacity of soil to transmit water - Connection between pores - More connections = more flow
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Groundwater terms - Infiltration - downward movement of water into the soil/rock through permeable and porous rock - Aquiclude - impermeable rock (low porosity, low permeability) prevents infiltration and groundwater flow - Aquifer - storage of underground water - within zone of saturation : all pores of rock filled with water - Water table - top of zone of saturation - Zone of aeration - top of soil with mixture of solids, water and air - never saturated!!
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Confined Water Zone Waterless zone Underground Hydrologic Zones aquifer
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Chap13_introtolandforms.sakai - The Hydrologic Cycle...

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