EESC 2203 Lecture Notes - Lecture 3: Porosity, Viscosity, Vadose Zone
14 Mar 2016
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Document Summary
Why do we extract saline groundwater: used for mining - oil and gas exploration. Domestic use - people who supply own water - private wells: for irrigation purpose - 42% is groundwater*** Permeability - capacity for a porous media to transmit liquids. More chances for chemical weathering as water moves through this material. Polarity and low viscosity - important because related to movement of ions. As water moving through material underground, it gets cations from material as the material weathers: water is polar and acts as a shield, so picks up ions and lets them move with it. Surface tension, interfacial curvature, contact angle, and capillarity - important when we"re looking at water staying in unsaturated zone above the water table. Saturated zone - all pore spaces illed with water. Unsaturated zone - only some water and gases.
