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GroMoPo Metadata for Agua Verde aquifer (Atacama Desert) model


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Created: Feb 07, 2023 at 8:01 p.m.
Last updated: Feb 07, 2023 at 8:02 p.m.
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Abstract

The hyper-arid conditions prevailing in Agua Verde aquifer in northern Chile make this system the most important water source for nearby towns and mining industries. Due to the growing demand for water in this region, recharge is investigated along with the impact of intense pumping activity in this aquifer. A conceptual model of the hydrogeological system is developed and implemented into a two-dimensional groundwater-flow numerical model. To assess the impact of climate change and groundwater extraction, several scenarios are simulated considering variations in both aquifer recharge and withdrawals. The estimated average groundwater lateral recharge from Precordillera (pre-mountain range) is about 4,482 m(3)/day. The scenarios that consider an increase of water withdrawal show a non-sustainable groundwater consumption leading to an over-exploitation of the resource, because the outflows surpasses inflows, causing storage depletion. The greater the depletion, the larger the impact of recharge reduction caused by the considered future climate change. This result indicates that the combined effects of such factors may have a severe impact on groundwater availability as found in other groundwater-dependent regions located in arid environments. Furthermore, the scenarios that consider a reduction of the extraction flow rate show that it may be possible to partially alleviate the damage already caused to the aquifer by the continuous extractions since 1974, and it can partially counteract climate change impacts on future groundwater availability caused by a decrease in precipitation (and so in recharge), if the desalination plant in Taltal increases its capacity.

Subject Keywords

Coverage

Spatial

Coordinate System/Geographic Projection:
WGS 84 EPSG:4326
Coordinate Units:
Decimal degrees
Place/Area Name:
Chile
North Latitude
-25.3743°
East Longitude
-69.7849°
South Latitude
-25.4699°
West Longitude
-70.0013°

Content

Additional Metadata

Name Value
DOI 10.1007/s10040-018-1740-3
Depth
Scale 101 - 1 000 km²
Layers 1 layer
Purpose Groundwater resources
GroMoPo_ID 121
IsVerified True
Model Code TRANSIN-IV
Model Link https://doi.org/10.1007/s10040-018-1740-3
Model Time 2015–2024
Model Year 2018
Model Authors Urrutia, J., Jódar, J., Medina, A. et al.
Model Country Chile
Data Available Report/paper only
Developer Email jum002@ucn.cl
Dominant Geology Model focuses on multiple geologic materials
Developer Country Chile
Publication Title Hydrogeology and sustainable future groundwater abstraction from the Agua Verde aquifer in the Atacama Desert, northern Chile
Original Developer No
Additional Information
Integration or Coupling
Evaluation or Calibration Dynamic water levels
Geologic Data Availability

How to Cite

GroMoPo, S. Ruzzante (2023). GroMoPo Metadata for Agua Verde aquifer (Atacama Desert) model, HydroShare, http://www.hydroshare.org/resource/a8147ce53f284815a7c2921b33c90a96

This resource is shared under the Creative Commons Attribution CC BY.

http://creativecommons.org/licenses/by/4.0/
CC-BY

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