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GroMoPo Metadata for Upper Santiago Valley Aquifer model


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Created: Feb 07, 2023 at 7:55 p.m.
Last updated: Feb 07, 2023 at 7:56 p.m.
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Abstract

The use of groundwater as water supply has increased dramatically in Santiago, Chile, during the last decades, and there is a need for accurately estimating the actual groundwater supply capacity in the upper Santiago Valley aquifer. The behavior of this aquifer was studied in order to determine the availability of water and the long-range sustainable extraction rate. Water-table depths were simulated using a numerical model with information on recharge from the last 48 years under different extraction policies. With this series of groundwater level data, groundwater level probability distribution functions were determined and extraction statistics were estimated by fitting time series models and by using the crossing theory. With this information, it has been possible to calculate the risk of being unable to supply groundwater demand because the results verify that only 67% of the water rights granted are able to be extracted on a sustained basis with a 90% exceedance probability. Furthermore, the results obtained demonstrate that the method is adequate for determining exceedance probabilities of groundwater flow.

Subject Keywords

Coverage

Spatial

Coordinate System/Geographic Projection:
WGS 84 EPSG:4326
Coordinate Units:
Decimal degrees
Place/Area Name:
Chile
North Latitude
-32.9667°
East Longitude
-70.3667°
South Latitude
-33.7500°
West Longitude
-70.9333°

Content

Additional Metadata

Name Value
DOI 10.1007/s10040-003-0292-2
Depth
Scale 11 - 101 km²
Layers 1 layer
Purpose Groundwater resources
GroMoPo_ID 117
IsVerified True
Model Code MODFLOW
Model Link https://doi.org/10.1007/s10040-003-0292-2
Model Time 1951–1998
Model Year 2003
Model Authors José F. Muñoz, Bonifacio Fernández , Cristián Escauriaza
Model Country Chile
Data Available Report/paper only
Developer Email jfmunoz@ing.puc.cl
Dominant Geology Unconsolidated sediments
Developer Country Chile
Publication Title Evaluation of groundwater availability and sustainable extraction rate for the Upper Santiago Valley Aquifer, Chile
Original Developer No
Additional Information
Integration or Coupling
Evaluation or Calibration Static water levels;Dynamic water levels
Geologic Data Availability

How to Cite

GroMoPo, S. Ruzzante (2023). GroMoPo Metadata for Upper Santiago Valley Aquifer model, HydroShare, http://www.hydroshare.org/resource/f96ea1ef636041b1bbbdfdd6ce1f209e

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

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

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