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Visual KARSYS – a web service for modelling karst aquifers in 3D

A 3D web-service has been developed for the modeling and for the management of karst aquifers and related groundwater resources. Visual KARSYS allows users to build explicit models of karst aquifers via a 3D geological modeller (gmLib Python library) and a series of tools (i.e. algorithms) which provide characteristics of groundwater bodies by applying hydraulic principles.

Visual KARSYS is designed for geologists or hydrogeologists working for public institutions or private companies, but also for administration or decision makers facing various issues in karst environments: groundwater resources, natural hazards, geothermal energy, civil engineering, etc. Outputs from Visual KARSYS (data, models and resulting documentation) can be shared between users for being consulted or edited.

The web-service is available at and it is currently free-of-charge and we encourage users to use it. In March 2021, more than 425 users already registered and ~150 persons attended the training courses.

The Visual KARSYS project is supported by the Swiss Federal Office for Environment via the grant for the promotion of environmental technology (2016-2019, UTF 537.13.16).


Arnauld Malard1, Pierre-Yves Jeannin1, Manfred Vogel2, Simon Lopez3
1SISKA, Swiss Institute for Speleology and Karst Studies, rue de la Serre 68 – CH2300 La Chaux-de-Fonds; 2i4ds Institute of 4D Technologies, Fachhochschule Nordwestschweiz, Bahnhofstrasse 6, CH5210 Windisch; 3BRGM, 3 avenue Claude-Guillemin, 45000 Orléans
GeoKarlsruhe 2021