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 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 covering 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.