Tutorial: Create a groundwater level map from borehole data and a DEM

After this tutorial you'll be able to:

• Load a borehole/wells dataset from an SDI into QGIS
• Calculate the density of the boreholes in a polygon
  
• Download the SRTM 1-Arc Second DEM
• Clip and reproject a DEM
• Style a DEM
  
• Sample elevation at the borehole location and compare it with the elevation attribute
• Make corrections and calculations in the attribute table
  
• Interpolate groundwater levels of the boreholes to a raster
• Create and visualise contour lines