GroMoPo Metadata for Muschelkalk Formation karst aquifer model

Authors:

GroMoPo Kyle Compare

Owners:

gromopo_admin

Type:

Resource

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The size of this resource is 1.7 KB

Created:

Feb 08, 2023 at 4:12 a.m.

Last updated:

Feb 08, 2023 at 4:13 a.m.

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Abstract

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

Coverage

Spatial

Coordinate System/Geographic Projection:

WGS 84 EPSG:4326

Coordinate Units:

Decimal degrees

Place/Area Name:

Germany

North Latitude

48.6590°

East Longitude

9.1090°

South Latitude

48.4240°

West Longitude

8.7060°

Streets Terrain Satelite

Spatial Extent

Content

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Additional Metadata

Name	Value
DOI	10.1007/s10040-020-02220-z
Depth	660
Scale	101 - 1 000 kmÂ²
Layers	132
Purpose	Groundwater resources;Scientific investigation (not related to applied problem)
GroMoPo_ID	190
IsVerified	True
Model Code	MODFLOW
Model Link	https://doi.org/10.1007/s10040-020-02220-z
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	olaf.cirpka@uni-tuebingen.de
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, http://www.hydroshare.org/resource/099ad867a13142e2a2f76663f5d41f84

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

http://creativecommons.org/licenses/by/4.0/

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