ENVS 1126 Lecture Notes - Lecture 10: Groundwater Recharge, Aquifer, Refractometer
14 Nov 2016
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Document Summary
Water covers 71% of the surface: 97. 5% of all water is salt water. Most of fresh water is bound up in ice caps and glaciers soil, and the atmosphere: only 0. 77% is in lakes, wetlands, rivers, groundwater (majority), biota, Average of 9 days from evaporation to precipitation per drop. How does a refractometer work: epa charged with providing oversight of the quantity of freshwater use. A mediums" index of refraction (cid:523))or(cid:524) = speed of light in a vacuum divided by the speed of light in that medium. Ior of a liquid depends on the density of a liquid. The greater the relative ior, the more light bends. Probes temperature, salinity, dissolved oxygen, clarity/turbidity, ph, etc. Future challenges increasing population will challenge water infrastructure: snell"s law increasing agriculture output; cities and industries compete with agriculture. Climate change will affect the hydrologic cycle: variability will cause floods and droughts. 2 ways to consider water issues: quantity and quality.
