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GEOG 3103 Lecture Notes - Lecture 4: Water Cycle, Porosity, Grand Canyon

66 views23 pages
greycaribou178
3 Feb 2017
School
Carleton University
Department
Geography
Course
GEOG 3103
Professor
Jennifer Totten

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Groundwater+Hydrology
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Cj1MI1C
Groundwater+Hydrology
J0#/05#*"8+ `0F$<*$"+C8+I2C[ IO11+W>
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Document Summary

30% fresh water , 95% of liquid fresh water. Sustains stream flow in low flows or droughts. Slow moving (>1m/day) but crucial link in hydrological cycle. Movement of this water ( where is coming from, how fast) -> geological structure governs occurrence & movement of groundwater. Soil water : subsurface water in the unsaturated zone above the water table. Ground water : water in the saturated zone of earths material. Store and transmit it for it to be hydrologically significant. Layers of rock or unconsolidated deposits that contain sufficient saturated material to yield significant quantities of waters. Unconfined: upper surface is water table , no cap that stops water getting in getting in. Confined: upper level is confined, boundary layers doesn"t let water easily to go through. Pushing down is a large mass, therefore water extracted is under greater pressure therefore water will rise to a higher level when making a well.

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