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| Created: | Feb 07, 2023 at 6:05 p.m. | |
| Last updated: | Feb 07, 2023 at 6:05 p.m. | |
| Citation: | See how to cite this resource |
| Sharing Status: | Public |
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Abstract
Groundwater models often serve as management tools to evaluate competing water uses including ecosystems, irrigated agriculture, industry, municipal supply, and others. Depletion potential mapping-showing the model-calculated potential impacts that wells have on stream baseflow-can form the basis for multiple potential management approaches in an oversubscribed basin. Specific management approaches can include scenarios proposed by stakeholders, systematic changes in well pumping based on depletion potential, and formal constrained optimization, which can be used to quantify the tradeoff between water use and stream baseflow. Variables such as the maximum amount of reduction allowed in each well and various groupings of wells using, for example, K-means clustering considering spatial proximity and depletion potential are considered. These approaches provide a potential starting point and guidance for resource managers and stakeholders to make decisions about groundwater management in a basin, spreading responsibility in different ways. We illustrate these approaches in the Little Plover River basin in central Wisconsin, United States-home to a rich agricultural tradition, with farmland and urban areas both in close proximity to a groundwater-dependent trout stream. Groundwater withdrawals have reduced baseflow supplying the Little Plover River below a legally established minimum. The techniques in this work were developed in response to engaged stakeholders with various interests and goals for the basin. They sought to develop a collaborative management plan at a watershed scale that restores the flow rate in the river in a manner that incorporates principles of shared governance and results in effective and minimally disruptive changes in groundwater extraction practices.
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Additional Metadata
| Name | Value |
|---|---|
| DOI | 10.1111/gwat.12536 |
| Depth | |
| Scale | Little Plover River Basin (exact model area is not given) |
| Layers | 2-5 layers |
| Purpose | groundwater resources;streamflow depletion |
| GroMoPo_ID | 60 |
| IsVerified | True |
| Model Code | MODFLOW |
| Model Link | https://doi.org/10.1111/gwat.12536 |
| Model Time | SS |
| Model Year | 2017 |
| Model Authors | M.N. Fienen, K.R. Bradbury, M.Kniffin, P.M. Barlow |
| Model Country | United States |
| Data Available | report/paper only |
| Developer Email | mnfienen@usgs.gov |
| Dominant Geology | Model focuses on multiple geologic materials |
| Developer Country | USA |
| Publication Title | Depletion Mapping and Constrained Optimization to Support Managing Groundwater Extraction |
| Original Developer | No |
| Additional Information | |
| Integration or Coupling | Soil-water-balance model |
| Evaluation or Calibration | |
| Geologic Data Availability |
How to Cite
This resource is shared under the Creative Commons Attribution CC BY.
http://creativecommons.org/licenses/by/4.0/
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