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GroMoPo Metadata for Azul River basin regional MODFLOW model


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Created: Feb 07, 2023 at 7:28 p.m.
Last updated: Feb 07, 2023 at 7:28 p.m.
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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

Coordinate System/Geographic Projection:
WGS 84 EPSG:4326
Coordinate Units:
Decimal degrees
Place/Area Name:
Argentina
North Latitude
-36.8729°
East Longitude
-59.7208°
South Latitude
-37.3007°
West Longitude
-60.1105°

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

GroMoPo, S. Ruzzante (2023). GroMoPo Metadata for Azul River basin regional MODFLOW model, HydroShare, http://www.hydroshare.org/resource/634b2069d3f342e9a649de9ef0d994d0

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

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

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