Geo Software

 
PCRaster
The PCRaster Environmental Modelling language is a computer language for the construction of iterative spatio-temporal environmental models. It runs in its own raster GIS environment that supports immediate pre- or post-modelling visualisation of spatio-temporal data. Current development focuses on 3D (voxel) dynamic modelling. The PCRaster package is free to use. PCRaster website.

GSTAT
Gstat is an open source (GPL) computer code for multivariable geostatistical modelling, prediction and simulation, and has been around from 1997. In the original form, Gstat is a stand-alone executable, interfaced to various GIS.
As of 2003, the gstat functionaly is also available as an S extension, either as R package or S-Plus library. Current development focuses on the S extension. The reason for this is obvious for those familiar with R and/or S-Plus. Gstat website

LISEM
The LImburg Soil Erosion Model (LISEM) is a physically-based runoff and erosion model for research, planning and conservation purposes. It simulates the spatial effects of rainfall events on small watersheds. It uses the PCRaster Environmental Modelling Software. LISEM website

LLG
LLG is the program our students use in the Rhine-Meuse delta field course, to digitize, print and store borehole descriptions. It was developed in-house in the 1990's, as a student-proof data-entry environment. Additional software is available to plot borehole data for crosssections (BP-PLOTTER) and to manage individual borehole databases as one large database (LLG-INFO). LLG website