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| Created: | Feb 07, 2023 at 7:28 p.m. | |
| Last updated: | Feb 07, 2023 at 7:28 p.m. | |
| Citation: | See how to cite this resource |
| Sharing Status: | Public |
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Abstract
A three-dimensional modular model (MODFLOW) was used to simulate groundwater flow in the Azul River basin. Buenos Aires Province. Argentina: in order to assess the correctness of the conceptual model of the hydrogeological system. Simulated heads satisfactorily match observed heads in the regional water-table aquifer. Model results indicate that: (1) groundwater recharge is not uniform throughout the region but is best represented by three recharge rates, decreasing downgradient, similar to the distribution of soils and geomorphological characteristics; and (2) evapotranspiration rates are larger than previous estimates, which were made by using the Thornthwaite-Mather method. Evapotranspiration rates estimated by MODFLOW agree with results of independent studies of the region. Model results closely match historical surface-flow records, thereby suggesting that the model description of the aquifer-river relationship is correct.
Subject Keywords
Coverage
Spatial
Content
Additional Metadata
| Name | Value |
|---|---|
| DOI | 10.1007/s100400050190 |
| Depth | 580 |
| Scale | 1 001 - 10 000 km² |
| Layers | 6-10 layers |
| Purpose | Groundwater resources |
| GroMoPo_ID | 106 |
| IsVerified | True |
| Model Code | MODFLOW |
| Model Link | https://doi.org/10.1007/s100400050190 |
| Model Time | SS |
| Model Year | 1999 |
| Model Authors | Varni, M., Usunoff, E. |
| Model Country | Argentina |
| Data Available | Report/paper only |
| Developer Email | varni@faa.unicen.edu.ar |
| Dominant Geology | Unconsolidated sediments |
| Developer Country | Argentina |
| Publication Title | Simulation of regional-scale groundwater flow in the Azul River basin, Buenos Aires Province, Argentina |
| Original Developer | No |
| Additional Information | A three-dimensional modular model (MODFLOW) was used to simulate groundwater flow in the Azul River basin, Buenos Aires Province, Argentina, in order to assess the correctness of the conceptual model of the hydrogeological system. Simulated heads satisfactorily match observed heads in the regional water-table aquifer. Model results indicate that: (1) groundwater recharge is not uniform throughout the region but is best represented by three recharge rates, decreasing downgradient, similar to the distribution of soils and geomorphological characteristics; and (2) evapotranspiration rates are larger than previous estimates, which were made by using the Thornthwaite–Mather method. Evapotranspiration rates estimated by MODFLOW agree with results of independent studies of the region. Model results closely match historical surface-flow records, thereby suggesting that the model description of the aquifer–river relationship is correct. |
| Integration or Coupling | |
| Evaluation or Calibration | Static water levels |
| 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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