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| Type: | Resource | |
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| Created: | Apr 13, 2023 at 2:13 p.m. | |
| Last updated: | Apr 13, 2023 at 2:14 p.m. | |
| Citation: | See how to cite this resource |
| Sharing Status: | Public |
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| Views: | 485 |
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Abstract
This paper uses Visual MODFLOW to simulate potential impacts of anthropogenic pumping and recharge variability on an alluvial aquifer in semi-arid northwestern Oklahoma. Groundwater withdrawal from the aquifer is projected to increase by more than 50% (relative to 1990) by the year 2050. In contrast, climate projections indicate declining regional precipitation over the next several decades, creating a potential problem of demand and supply. The following scenarios were simulated: (1) projected groundwater withdrawal, (2) a severe drought, (3) a prolonged wet period, and (4) a human adjustment scenario, which assumes future improvements in water conservation measures. Results indicate that the combined impacts of anthropogenic pumping and droughts would create drawdown of greater than 12 m in the aquifer. Spatially, however, areas of severe drawdown will be localized around large-capacity well clusters. The worst impacts of both pumping and droughts will be on stream-aquifer interaction. For example, the projected aquifer pumpage would lead to a total streamflow loss of 40%, creating losing stream system regionally. Similarly, a severe drought would lead to a total streamflow loss of >80%. A post-audit of the model was also carried out to evaluate model performance. By simulating various stress scenarios on the alluvial aquifer, this study provides important information for evaluating management options for alluvial aquifers.
Subject Keywords
Coverage
Spatial
Content
Additional Metadata
| Name | Value |
|---|---|
| DOI | 10.1007/s12040-011-0088-z |
| Depth | 100 meters |
| Scale | 1 001 - 10 000 km² |
| Layers | N/A |
| Purpose | Groundwater resources, Climate change |
| GroMoPo_ID | 2024 |
| IsVerified | True |
| Model Code | MODFLOW |
| Model Link | https://doi.org/10.1007/s12040-011-0088-z |
| Model Time | 1976–2050 |
| Model Year | 2011 |
| Creator Email | sachawruzzante@gmail.com |
| Model Country | United States |
| Data Available | Report/paper only |
| Developer Email | jtzume@ship.edu |
| Dominant Geology | Unconsolidated sediments |
| Developer Country | USA |
| Publication Title | Modelling the response of an alluvial aquifer to anthropogenic and recharge stresses in the United States Southern Great Plains |
| Original Developer | No |
| Additional Information | N/A |
| Integration or Coupling | None of the above |
| Evaluation or Calibration | Dynamic water levels |
| Geologic Data Availability | No |
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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