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| Type: | Resource | |
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| Created: | Apr 13, 2023 at 2:25 p.m. | |
| Last updated: | Apr 13, 2023 at 2:25 p.m. | |
| Citation: | See how to cite this resource |
| Sharing Status: | Public |
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| Views: | 506 |
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Abstract
Sustainable management of groundwater resources is vital for development of areas at risk from water-resource over-exploitation. In northeast Thailand, the Phu Thok aquifer is an important water source, particularly in the Thaphra area, where increased groundwater withdrawals may result in water-level decline and saline-water upconing. Three-dimensional finite-difference flow models were developed with MODFLOW to predict the impacts of future pumping on hydraulic heads. Four scenarios of pumping and recharge were defined to evaluate the system response to future usage and climate conditions. Primary model simulations show that groundwater heads will continue to decrease by 4-12 m by the year 2040 at the center of the highly exploited area, under conditions of both increasing pumping and drought. To quantify predictive uncertainty in these estimates, in addition to the primary conceptual model, three alternative conceptual models were used in the simulation of sustainable yields. These alternative models show that, for this case study, a reasonable degree of uncertainty in hydrostratigraphic interpretation is more impactful than uncertainty in recharge distribution or boundary conditions. The uncertainty-analysis results strongly support addressing conceptual-model uncertainty in the practice of groundwater-management modeling. Doing so will better assist decision makers in selecting and implementing robust sustainable strategies.
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Additional Metadata
| Name | Value |
|---|---|
| DOI | 10.1007/s10040-012-0887-6 |
| Depth | 520 meters |
| Scale | 101 - 1 000 km² |
| Layers | 15 |
| Purpose | Groundwater resources |
| GroMoPo_ID | 2032 |
| IsVerified | True |
| Model Code | MODFLOW |
| Model Link | https://doi.org/10.1007/s10040-012-0887-6 |
| Model Time | 1998–2040 |
| Model Year | 2012 |
| Creator Email | sachawruzzante@gmail.com |
| Model Country | Thailand |
| Data Available | Report/paper only |
| Developer Email | tnettasa@engmail.uwaterloo.ca |
| Dominant Geology | Siliciclastic sedimentary (sandstones, shales) |
| Developer Country | Canada |
| Publication Title | Conceptual and numerical models for sustainable groundwater management in the Thaphra area, Chi River Basin, Thailand |
| Original Developer | No |
| Additional Information | N/A |
| Integration or Coupling | None of the above |
| Evaluation or Calibration | Static water levels, Dynamic water levels |
| Geologic Data Availability | N/A |
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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