GFLOW groundwater flow model of the St. Louis River Basin, Minnesota

Metadata Updated: November 12, 2020

A two-dimensional, steady-state groundwater flow model of the St. Louis River Basin (SLRB) was developed using the analytic-element computer code, GFLOW, to provide an understanding of the regional groundwater flow system. In analytic-element models significant streams and lakes in the model domain are represented as linesink elements. Analytic-element models, such as the SLRB regional model, can be a screening model which provides a simplified version of a hydrologic system, completed ahead of a more complex modeling effort. For this study, the regional screening model was refined to focus on extensive ditching in the central SLRB, a wetland-rich area to the south of the Iron Range. Two smaller models were developed in this area—a ditch model and a pre-ditch model. The effect of ditching was evaluated by comparing two separate model runs, one with the ditch network represented as linesinks and a “pre-ditching” model with ditch linesinks removed. Additional calibration of the ditch scenario models was done to improve modeled groundwater levels in the wetlands. This USGS data release contains all of the input and output to run the model simulations described in the associated model documentation report (https://doi.org/10.3133/sir20195033).

Access & Use Information

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 Date July 18, 2019
Metadata Created Date November 12, 2020
Metadata Updated Date November 12, 2020
Reference Date(s) January 1, 2019 (publication)
Frequency Of Update notPlanned

Metadata Source

Harvested from DOI Open Data

Graphic Preview

Image of the nearfield and farfield model domains.

Additional Metadata

Resource Type Dataset
Metadata Date July 18, 2019
Metadata Created Date November 12, 2020
Metadata Updated Date November 12, 2020
Reference Date(s) January 1, 2019 (publication)
Responsible Party U.S. Geological Survey (Point of Contact)
Contact Email
Guid
Access Constraints Use Constraints: none, Access Constraints: None. Acknowledgment of the U.S. Geological Survey would be appreciated in products derived from this data release.
Bbox East Long -91.109073
Bbox North Lat 48.120011
Bbox South Lat 46.524454
Bbox West Long -93.458137
Coupled Resource
Frequency Of Update notPlanned
Graphic Preview Description Image of the nearfield and farfield model domains.
Graphic Preview File https://water.usgs.gov/GIS/browse/sir2019-5033.jpg
Graphic Preview Type jpg
Licence The data have been approved for release by the U.S. Geological Survey (USGS). Although the data have been subjected to rigorous review and are substantially complete, the USGS reserves the right to revise the data pursuant to further analysis and review. Furthermore, the data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from authorized or unauthorized use. Although the data, software, and related material have been processed successfully on a computer system at the USGS, no warranty expressed or implied is made regarding the display or utility of the data for other purposes, nor on all computer systems, nor shall the act of distribution constitute any such warranty. The USGS or the U.S. Government shall not be held liable for improper or incorrect use of the data described and/or contained herein. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
Metadata Language
Metadata Type geospatial
Progress completed
Spatial Data Service Type
Spatial Reference System
Spatial Harvester True
Temporal Extent Begin 1996-01-01
Temporal Extent End 2016-01-01

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