GroMoPo Metadata for Madison Aquifer Karst MODFLOW 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 2:12 p.m.

Last updated:

Feb 08, 2023 at 2:12 p.m.

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Abstract

Karst aquifers exhibit a dual flow system characterized by interacting conduit and matrix domains. This study evaluated the coupled continuum pipe-flow framework for modeling karst groundwater flow in the Madison aquifer of western South Dakota (USA). Coupled conduit and matrix flow was simulated within a regional finite-difference model over a 10-year transient period. An existing equivalent porous medium (EPM) model was modified to include major conduit networks whose locations were constrained by dye-tracing data and environmental tracer analysis. Model calibration data included measured hydraulic heads at observation wells and estimates of discharge at four karst springs. Relative to the EPM model, the match to observation well hydraulic heads was substantially improved with the addition of conduits. The inclusion of conduit flow allowed for a simpler hydraulic conductivity distribution in the matrix continuum. Two of the high-conductivity zones in the EPM model, which were required to indirectly simulate the effects of conduits, were eliminated from the new model. This work demonstrates the utility of the coupled continuum pipe-flow method and illustrates how karst aquifer model parameterization is dependent on the physical processes that are simulated.

Subject Keywords

Coverage

Spatial

Coordinate System/Geographic Projection:

WGS 84 EPSG:4326

Coordinate Units:

Decimal degrees

Place/Area Name:

United States

North Latitude

44.4096°

East Longitude

-102.8455°

South Latitude

43.8605°

West Longitude

-103.4597°

Streets Terrain Satelite

Spatial Extent

Content

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Additional Metadata

Name	Value
DOI	10.1007/s10040-013-1036-6
Depth	325
Scale	1 001 - 10 000 kmÂ²
Layers	5
Purpose	Groundwater resources;Scientific investigation (not related to applied problem)
GroMoPo_ID	258
IsVerified	True
Model Code	MODFLOW
Model Link	https://doi.org/10.1007/s10040-013-1036-6
Model Time	1988-1997
Model Year	2013
Model Authors	Saller, SP; Ronayne, MJ; Long, AJ
Model Country	United States
Data Available	Report/paper only
Developer Email	Michael.Ronayne@colostate.edu
Dominant Geology	Model focuses on multiple geologic materials
Developer Country	USA
Publication Title	Comparison of a karst groundwater model with and without discrete conduit flow
Original Developer	No
Additional Information	Testing a MODLFOW model in the Minnelusa and Madison Aquifers near Rapid City, South Dakota, USA by comparing the use and omission of a discrete karst conduit network
Integration or Coupling
Evaluation or Calibration	Dynamic water levels
Geologic Data Availability	No

How to Cite

GroMoPo, K. Compare (2023). GroMoPo Metadata for Madison Aquifer Karst MODFLOW model, HydroShare, http://www.hydroshare.org/resource/37189be345c44e2e8743b6f20fb37a2d

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

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

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