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GroMoPo Metadata for Muschelkalk Formation karst aquifer model

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Created: Feb 08, 2023 at 4:12 a.m.
Last updated: Feb 08, 2023 at 4:13 a.m.
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In three-dimensional (3-D) implicit geological modeling, the bounding surfaces between geological units are automatically constructed from lithological contact data (position and orientation) and the location and orientation of potential faults. This approach was applied to conceptualize a karst aquifer in the Middle Triassic Muschelkalk Formation in southwest Germany, using digital elevation data, geological maps, borehole logs, and geological interpretation. Dip and strike measurements as well as soil-gas surveys of mantel-borne CO(2)were conducted to verify the existence of an unmapped fault. Implicit geological modeling allowed the straightforward assessment of the geological framework and rapid updates with incoming data. Simultaneous 3-D visualizations of the sedimentary units, tectonic features, hydraulic heads, and tracer tests provided insights into the karst-system hydraulics and helped guide the formulation of the conceptual hydrogeological model. The 3-D geological model was automatically translated into a numerical single-continuum steady-state groundwater model that was calibrated to match measured hydraulic heads, spring discharge rates, and flow directions observed in tracer tests. This was possible only by introducing discrete karst conduits, which were implemented as high-conductivity features in the numerical model. The numerical groundwater flow model was applied to initially assess the risk from limestone quarrying to local water supply wells with the help of particle tracking.

Subject Keywords



Coordinate System/Geographic Projection:
WGS 84 EPSG:4326
Coordinate Units:
Decimal degrees
Place/Area Name:
North Latitude
East Longitude
South Latitude
West Longitude


Additional Metadata

Name Value
DOI 10.1007/s10040-020-02220-z
Depth 660
Scale 101 - 1 000 km²
Layers 132
Purpose Groundwater resources;Scientific investigation (not related to applied problem)
GroMoPo_ID 190
IsVerified True
Model Code MODFLOW
Model Link
Model Time SS
Model Year 2020
Model Authors D'Affonseca, FM; Finkel, M; Cirpka, OA
Model Country Germany
Data Available Report/paper only
Developer Email
Dominant Geology Carbonate (including karst)
Developer Country Germany
Publication Title Combining implicit geological modeling, field surveys, and hydrogeological modeling to describe groundwater flow in a karst aquifer
Original Developer No
Additional Information The study utilizes a method of developing a 3D geologic model using the Leapfrog software and exporting this as a 3D hydrogeologic model utilized by MODFLOW-NWT. This is then used to model a karst aquifer within this model.
Integration or Coupling 3D Geologic Models
Evaluation or Calibration Static water levels
Geologic Data Availability No

How to Cite

GroMoPo, K. Compare (2023). GroMoPo Metadata for Muschelkalk Formation karst aquifer model, HydroShare,

This resource is shared under the Creative Commons Attribution CC BY.


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