EESA07H3 Lecture 9: Lecture 9
15 Apr 2011
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Document Summary
Are surface water: groundwater is out of public sight and out of political mind. Henry darcy: knowledge and understanding of how groundwater stored- in aquifers- dates back to meizner, ground and surface water derive from same atmosphere source rain or snow- probably only similarities. 4 major differences between ground and surface water systems: water pathways and regional distributions of resource, volumes in storage, flow velocities including directions, how quickly water moves, chemical and contaminant behaviour. What is groundwater: part of the water cycle- hydrologic system, some water moves into aquifer, once it moves into aquifer, goes into groundwater system, key to sustainable resource management is understanding and quantifying all components of hydrologic cycle. 4 major differences between groundwater and surface water. areas which are geologically complex with locally important aquifers. fossil waters , lots in sa, chile. 3 out of 4 litres of fresh water are frozen glaciers.
