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| Created: | Feb 06, 2023 at 9:02 p.m. | |
| Last updated: | Feb 06, 2023 at 9:02 p.m. | |
| Citation: | See how to cite this resource |
| Sharing Status: | Public |
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| Views: | 676 |
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Abstract
A three-dimensional variable-density finite element model was developed to study the combined effects of overabstraction and seawater intrusion in the Pingtung Plain coastal aquifer system in Taiwan. The model was generated in different layers to represent the three aquifers and two aquitards. Twenty-five multilayer pumping wells were assigned to abstract the groundwater, in addition to 95 observation wells to monitor the groundwater level. The analysis was carried out for a period of 8 years (2008-2015 inclusive). Hydraulic head, soil permeability, and precipitation were assigned as input data together with the pumping records in different layers of the aquifer. The developed numerical model was calibrated against the observed head archives and the calibrated model was used to predict the inland encroachment of seawater in different layers of the aquifer. The effects of pumping rate, sea-level rise, and relocation of wells on seawater intrusion were examined. The results show that all layers of the aquifer system are affected by seawater intrusion; however, the lengths of inland encroachment in the top and bottom aquifers are greater compared with the middle layer. This is the first large-scale finite-element model of the Pingtung Plain, which can be used by decision-makers for sustainable management of groundwater resources and cognizance of seawater intrusion in coastal aquifers.
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Additional Metadata
| Name | Value |
|---|---|
| DOI | 10.1007/s10040-020-02172-4 |
| Depth | 200 |
| Scale | < 10 000 km² |
| Layers | >20 layers |
| Purpose | groundwater resources;salt water intrusion |
| GroMoPo_ID | 26 |
| IsVerified | True |
| Model Code | Feflow |
| Model Link | https://doi.org/10.1007/s10040-020-02172-4 |
| Model Time | 2008-2015 |
| Model Year | 2020 |
| Model Authors | Mahdieh Dibaj, Akbar A. Javadi, Mohammad Akrami, Kai-Yuan Ke, Raziyeh Farmani, Yih-Chi Tan, Albert S. Chen |
| Model Country | Taiwan |
| Data Available | report/paper only;Geological input available;Hydraulic conductivity maps available |
| Developer Email | a.a.javadi@exeter.ac.uk |
| Dominant Geology | unconsolidated |
| Developer Country | UK |
| Publication Title | Modelling seawater intrusion in the Pingtung coastal aquifer in Taiwan, under the influence of sea-level rise and changing abstraction regime |
| Original Developer | No |
| Additional Information | |
| Integration or Coupling | Solute transport |
| Evaluation or Calibration | static water levels;contaminant concentrations |
| 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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