Interpolated groundwater-level surface, spring 2017, Bazile Groundwater Management Area, northeastern Nebraska

This data set is a raster that represents the groundwater-level surface within the Bazile Groundwater Management Area (BGMA) in spring of 2017. This raster was created for use within the Geoscene3D program (I-GIS, 2020) which combines airborne electromagnetic geophysical data along with supporting information for visualization and geological modeling. A water-level surface was created as input to a Geoscene3D project created for the BGMA. The water-level surface was created using 58 water-levels measured from January to June of 2017 to represent water-level conditions prior to the onset of seasonal groundwater irrigation. The distribution of water-levels provided adequate coverage to the Bazile Groundwater Management area; however, high relief areas near Verdigre Creek and Bazile Creek are not adequately covered. In an effort to create a water-level surface map that is representative of the entire BGMA, water-level contours representing 1995 water levels first were compared to discreet spring 2017 water levels. The 1995 water-levels were published by the University of Nebraska Lincoln Conservation and Survey Division. These datasets were imported into ArcGIS as shapefiles. In general, water levels from both datasets were similar; however, two water levels from shallow wells located within the glaciated part of the BGMA were removed from the spring 2017 discrete water-level measurements. The water levels measured in each of these wells were much shallower when compared to the 1995 statewide water-level map contours, most likely because they are perched water levels representative of localized conditions, rather than the regional groundwater flow system.

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  "010:12"
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  "geospatial"
]