Want to know more?

More detailed information on the construction of GeoTOP, classifications used, accuracy, uncertainties and the implications of all this its’ applications can be found in:

Flyer GeoTOP (PDF, 5,81 MB) (2015)
Short note on the construction, accuracy and uncertainties of GeoTOP, and the model itself.

Productspecification GeoTOP (PDF, 2,13 MB) (Stafleu and Dubelaar 2016)
Summary report providing information for the user on how GeoTOP can be used.

TNO rapport GeoTOP modellering (PDF, 15 MB) (Stafleu et al. 2012) (Dutch only)
Detailed report on the construction, accuracy and uncertainties of GeoTOP, and on how GeoTOP can be used.

Artikel 3D subsurface modelling of Zeeland (PDF, 2,17 MB) (Stafleu et al. 2011)
Paper on the construction, accuracy and uncertainties of GeoTOP (Zeeland area), and on how it can be used.

Modelling method GeoTOP Oost Wad and issues GeoTOP (PDF, 2,67 MB) (2016) (Dutch only)
Note on the modelling method of model area Oost Wad and issues related to GeoTOP.

Overview geological units in GeoTOP (PDF, 36 KB) (Dutch only).

Lithostratigraphical units per model area (PDF, 705 KB) (2020) (Dutch only)

Uncertainties GeoTOP (PDF, 1,3 MB) (2014) (Dutch only)
Note on implications and visualisation of uncertainties in GeoTOP.

Note on the calculation of the most probable lithological class in GeoTOP (PDF, 0,5 MB) (2014) (Dutch only)

Description of the lithostratigraphical units in the subsurface of the Netherlands.


Geological maps derived from GeoTOP


GeoTOP is used as a starting point to develop specific geological maps, focused on a typical user group. Examples given are a map of the surface geology, maps showing the cumulative thickness of sand, a map showing the top of the Pleistocene and a map showing the lithological characteristics of the upper 8 meters summarised in 5 distinct classes. These maps can currently only be found on the Grondwatertools.nl website.