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| Type: | Resource | |
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| Created: | Feb 08, 2023 at 2 p.m. | |
| Last updated: | Feb 08, 2023 at 2:01 p.m. | |
| Citation: | See how to cite this resource |
| Sharing Status: | Public |
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| Views: | 497 |
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Abstract
Surface-water/groundwater exchange impacts water quality and budgets. In karst aquifers, these exchanges also play an important role in dissolution. Five years of river discharge data were analyzed and a transient groundwater flow model was developed to evaluate large-scale temporal and spatial variations of exchange between an 80-km stretch of the Suwannee River in north-central Florida (USA) and the karstic upper Floridan aquifer. The one-layer transient groundwater flow model was calibrated using groundwater levels from 59 monitoring wells, and fluxes were compared to the exchange calculated from discharge data. Both the numerical modeling and the discharge analysis suggest that the Suwannee River loses water under both low- and high-stage conditions. River losses appear greatest at the inside of a large meander, and the former river water may continue across the meander within the aquifer rather than return to the river. In addition, the numerical model calibration reveals that aquifer transmissivity is elevated within this large meander, which is consistent with enhanced dissolution due to river losses. The results show the importance of temporal and spatial variations in head gradients to exchange between streams and karst aquifers and dissolution of the aquifers.
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Additional Metadata
| Name | Value |
|---|---|
| DOI | 10.1007/s10040-014-1213-2 |
| Depth | 100 |
| Scale | 1 001 - 10 000 km² |
| Layers | 1 |
| Purpose | Groundwater resources |
| GroMoPo_ID | 250 |
| IsVerified | True |
| Model Code | MODFLOW |
| Model Link | https://doi.org/10.1007/s10040-014-1213-2 |
| Model Time | 2007-2012 |
| Model Year | 2015 |
| Model Authors | Sutton, JE; Screaton, EJ; Martin, JB |
| Model Country | United States |
| Data Available | Report/paper only |
| Developer Email | screaton@ufl.edu |
| Dominant Geology | Model focuses on multiple geologic materials |
| Developer Country | USA |
| Publication Title | Insights on surface-water/groundwater exchange in the upper Floridan aquifer, north-central Florida (USA), from streamflow data and numerical modeling |
| Original Developer | No |
| Additional Information | |
| Integration or Coupling | Surface water |
| 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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