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MODPATH6 models used to evaluate effects of complexity on groundwater age metrics in the Fox-Wolf-Peshtigo watersheds, Wisconsin

Metadata Updated: July 6, 2024

This data release contains five groundwater particle-tracking models (MODPATH6) of northeastern Wisconsin, USA, that were developed to work with three MODFLOW models that have differing levels of complexity. The previously developed MODFLOW models (https://doi.org/10.3133/sir20175010 and https://doi.org/10.5066/F73J3B3P) were modified slightly to ensure proper functioning with MODPATH6. Modifications to the original MODFLOW models included: 1. changing IPHDRY in the UPW package so that the dry cell flag value (HDRY) was written to the binary heads (*.hds) file, 2. selecting the compact budget option to ensure proper utilization of IFACE values by MODPATH, and 3. the period length (PERLEN) was increased for one model, although it has no effect on the simulation.

The goal of the modeling exercise was to evaluate the effects of the flow-model (MODFLOW) based complexity on estimates of groundwater age metrics. Results of the evaluation illustrate the importance of properly simulating perennial streams, as both hydraulically fully-penetrating streams and hydraulically partially-penetrating streams influence groundwater ages in aquifers by capturing groundwater of differing age that is associated with the aquifer depth from which the groundwater is captured. This work was performed as part of the National Water Quality Assessment (NAWQA) Project's groundwater Mapping and Modeling work plan to evaluate effects of differing levels of model complexity on simulated results. This USGS data release contains all of the input and output files for the simulations described in the associated Groundwater paper (https://doi.org/10.1111/gwat.13088).

Access & Use Information

Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

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Dates

Metadata Created Date June 1, 2023
Metadata Updated Date July 6, 2024

Metadata Source

Harvested from DOI EDI

Additional Metadata

Resource Type Dataset
Metadata Created Date June 1, 2023
Metadata Updated Date July 6, 2024
Publisher U.S. Geological Survey
Maintainer
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Identifier USGS:fbf35e7f-ac43-4dac-8087-f1870a663f04
Data Last Modified 20210322
Category geospatial
Public Access Level public
Bureau Code 010:12
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Metadata Catalog ID https://datainventory.doi.gov/data.json
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Harvest Source Id 52bfcc16-6e15-478f-809a-b1bc76f1aeda
Harvest Source Title DOI EDI
Metadata Type geospatial
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Publisher Hierarchy White House > U.S. Department of the Interior > U.S. Geological Survey
Source Datajson Identifier True
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