Artículo
Modelling of the groundwater hydrological behaviour of the Langueyú creek basin by using N-way multivariate methods
Barranquero, Rosario Soledad
; Pardo, Rafael; Varni, Marcelo Raúl; Ruiz de Galarreta, Victor Alejandro; Vega, Marisol
Fecha de publicación:
08/2014
Editorial:
John Wiley & Sons Ltd
Revista:
Hydrological Processes
ISSN:
0885-6087
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
The groundwater hydrochemical behaviour of the Langueyú creek basin (Argentina) has been evaluated through a systematic survey, followed by application of hydrological and chemometric multivariate techniques. Ten physicochemical parameters were determined in groundwater samples collected from 26 wells during four sampling campaigns (June 2010; October 2010; February 2011 and June 2011), originating a tridimensional experimental dataset X. Univariate statistical and graphical hydrochemical tools (contour maps and Piper diagrams) applied to individual campaigns, allowed to reach some preliminary conclusions. However, a best visualization of the aquifer behaviour was achieved by applying Principal Component Analysis (MA-PCA) and N-way PCA procedures, Parallel Factor Analysis and Tucker3. Results were consistent with two-term models, being Tucker3 [2 2 1] the most adequate, explaining a large amount of the dataset variance (50.7%) with a low complexity. The first Tucker3 [1 1 1] interaction (38.2% of variance) is related with (i) calcium/magnesium versus sodium/potassium ion exchange processes; (ii) an increase of ionic concentration and (iii) a decrease of nitrate pollution, all processes along the direction of the groundwater flow. The second [2 2 1] interaction (12.5% of variance), accounts for the predominant role played by conductivity, bicarbonate and magnesium in the dataset. The seasonal variations are closely related to concentration/dilution phenomena originated by the variations of the phreatic levels, although this point will require additional sampling to establish a definitive hydrochemical model.
Palabras clave:
Groundwater
,
Hydrochemistry
,
Langueyú Creek Basin
,
N-Way Pca
,
Parafac
,
Tucker3
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Articulos(CCT - TANDIL)
Articulos de CTRO CIENTIFICO TECNOLOGICO CONICET - TANDIL
Articulos de CTRO CIENTIFICO TECNOLOGICO CONICET - TANDIL
Citación
Barranquero, Rosario Soledad; Pardo, Rafael; Varni, Marcelo Raúl; Ruiz de Galarreta, Victor Alejandro; Vega, Marisol; Modelling of the groundwater hydrological behaviour of the Langueyú creek basin by using N-way multivariate methods; John Wiley & Sons Ltd; Hydrological Processes; 28; 17; 8-2014; 4743-4755
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