GGU-GEO-GRAPH: Preface

The GGU-GEO-GRAPH program allows graphical representation of any kind of measured parameter determined for data points of known x/y coordinates. A classical application of such oriented parameter representations is the graphical processing of groundwater levels in an observation well network. The information on location and values for various data points can be implemented in the following position-oriented graphics:

• Contour lines

• Colour-filled contour lines

• Colour-filled 3D graphics

• Bar charts (linear, logarithmic, root scale)

• Bar charts (stacked)

• Pie charts

• Circle charts

• Symbol charts

• Tables.

In GGU-GEO-GRAPH, a total of 18 different parameters can be assigned per data point. However, you are in no way restricted to groundwater level data; you can manage and represent any kind of data, e.g. contaminant concentration for a large number of contaminants, layer and horizon boundaries and thicknesses. The program also provides link functions to facilitate determination of new values, e.g. by establishing the difference between two existing values (determination of a groundwater level in [m AD] as the difference between ground level in [m AD] minus the measured groundwater level in [m below GL (ground level)]).