This exercise is done in a computer lab using ESRI ArcMap software with both the Spatial Analyst and 3D Analyst extensions. Students are given a copy of the Lakeside Nebraska 15 minute topographic map and a shapefile containing all the lake elevation data. They are given instructions on how to rasterize the point data to create a contour map of the water table surface and are then shown how to create flow lines. Their task is to create a flow net that they will use to determine areas of groundwater recharge and discharge. They will then generate hypotheses to explain what controls the groundwater flow system in this area.


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oai:nsdl.org:2200/20100502200953940T,NSDL_SetSpec_380601,Undergraduate (Upper Division),Ecology, Forestry and Agriculture,Geoscience,Higher Education,Vocational/Professional Development Education,Education,Teaching with Visuals,Groundwater flow,NSDL



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