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| Type: | Resource | |
| Storage: | The size of this resource is 2.7 KB | |
| Created: | Apr 13, 2023 at 2:09 p.m. | |
| Last updated: | Apr 13, 2023 at 2:09 p.m. | |
| Citation: | See how to cite this resource |
| Sharing Status: | Public |
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| Views: | 237 |
| Downloads: | 139 |
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Abstract
This work used several methodologies to evaluate the vertical groundwater recharge from precipitation in the Azul aquifer, central Buenos Aires province, Argentina. Firstly, the spatial variation of the recharge was evaluated and then the temporal variation in the recharge was analyzed in a station located in the center region of the study area. Several independent methods were applied to evaluate recharge: chloride mass balance method, water-table fluctuation method, and groundwater flow modeling in steady-state and in transient conditions. The results obtained show that the temporal variation in the recharge (measured in annual periods) was considerably greater than the variability in the precipitation that generated it, for all the applied methods and all the analyzed periods. The annual mean groundwater recharge varied from over 20% of the annual mean precipitation in the upper basin to less than 10% of the precipitation in the plains (lower basin), with intermediate values in the middle sub basin. A conceptual model of the groundwater system is proposed and its relationship to the recharges in each sector of the basin. This model identifies a regional flow system and local systems of different sizes.
Subject Keywords
Coverage
Spatial
Content
Additional Metadata
| Name | Value |
|---|---|
| DOI | N/A |
| Depth | 800 meters |
| Scale | 101 - 1 000 km² |
| Layers | 1 |
| Purpose | Groundwater resources |
| GroMoPo_ID | 2021 |
| IsVerified | True |
| Model Code | MODFLOW |
| Model Link | https://www.researchgate.net/publication/265739756_Application_of_several_methodologies_to_estimate_groundwater_recharge_in_the_Pampeano_Aquifer_Argentina |
| Model Time | 1997-2001 |
| Model Year | 2013 |
| Creator Email | sachawruzzante@gmail.com |
| Model Country | Argentina |
| Data Available | Report/paper only |
| Developer Email | varni@faa.unicen.edu.ar |
| Dominant Geology | Unconsolidated sediments |
| Developer Country | Argentina |
| Publication Title | Application of several methodologies to estimate groundwater recharge in the Pampeano Aquifer, Argentina |
| 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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