Assessment by multivariate analysis of groundwater-surface water interactions in urbanized Mediterranean streams

Streams in Mediterranean areas are characterized by a variable discharge regime with annual floods and droughts. Natural flow perturbations result in permanent and temporary rivers and, as a consequence, unique ecosystems. Human pressures such as treated and non-treated waste water discharge impact...

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Detalles Bibliográficos
Autores: Menció i Domingo, Anna, Mas-Pla, Josep
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2008
País:España
Institución:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositorio:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:10256/12914
Acceso en línea:http://hdl.handle.net/10256/12914
Access Level:acceso embargado
Palabra clave:Anàlisi de conglomerats
Cluster analysis
Aigua -- Química
Water chemistry
Hidrologia
Hydrology
Recursos hidràulics -- Explotació
Water resources development
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spelling Assessment by multivariate analysis of groundwater-surface water interactions in urbanized Mediterranean streamsMenció i Domingo, AnnaMas-Pla, JosepAnàlisi de conglomeratsCluster analysisAigua -- QuímicaWater chemistryHidrologiaHydrologyRecursos hidràulics -- ExplotacióWater resources developmentStreams in Mediterranean areas are characterized by a variable discharge regime with annual floods and droughts. Natural flow perturbations result in permanent and temporary rivers and, as a consequence, unique ecosystems. Human pressures such as treated and non-treated waste water discharge impact severely on these streams, since waste water dilution depends on river flow dynamics. Furthermore, their hydrological status worsens with the capture of stream discharge by surface or groundwater exploitation. Multivariate analysis has been widely used to analyze large sets of variables in environmental studies. In the present work, a hydrological study reinforced by principal component analysis (PCA), followed by cluster analysis of the PCA results, has been used to determine surface water origin and its interactions with groundwater in Mediterranean streams. The results show that hydrological observations are supported by PCA and cluster analysis. Additionally, this joint analysis makes it possible to observe the significance of the interaction between streams and aquifers in anthropized Mediterranean Basins. Groundwater exploitation can seriously impact on permanent streams, reducing their dilution capacity, and can even cause the capture of the whole stream discharge. Furthermore, good quality water contributions allow continuous stream flows and better waste water dilutions all year long. Finally, the results show that the presence and quality of surface water in temporary reaches during dry periods directly depends on groundwater contributionsThis project was funded by Grants from the Spanish government research Projects REN2002-04288-c02-01 and CICYT CGL-2005-08019-c04-02, and from the Patronat Francesc Eiximenis Grant (Diputació de Girona)ElsevierComisión Interministerial de Ciencia y Tecnología (Espanya)infoinfo2008info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://hdl.handle.net/10256/12914http://hdl.handle.net/10256/12914© Journal of Hydrology, 2008, vol. 352, núm. 3-4, p. 355-366Articles publicats (D-CCAA)reponame:Recercat. Dipósit de la Recerca de Catalunyainstname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)Inglésinfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.jhydrol.2008.01.014info:eu-repo/semantics/altIdentifier/issn/0022-1694MICYT/2005-2008/CGL2005-08019-C04-02Tots els drets reservatsinfo:eu-repo/semantics/embargoedAccessoai:recercat.cat:10256/129142026-05-29T05:05:01Z
dc.title.none.fl_str_mv Assessment by multivariate analysis of groundwater-surface water interactions in urbanized Mediterranean streams
title Assessment by multivariate analysis of groundwater-surface water interactions in urbanized Mediterranean streams
spellingShingle Assessment by multivariate analysis of groundwater-surface water interactions in urbanized Mediterranean streams
Menció i Domingo, Anna
Anàlisi de conglomerats
Cluster analysis
Aigua -- Química
Water chemistry
Hidrologia
Hydrology
Recursos hidràulics -- Explotació
Water resources development
title_short Assessment by multivariate analysis of groundwater-surface water interactions in urbanized Mediterranean streams
title_full Assessment by multivariate analysis of groundwater-surface water interactions in urbanized Mediterranean streams
title_fullStr Assessment by multivariate analysis of groundwater-surface water interactions in urbanized Mediterranean streams
title_full_unstemmed Assessment by multivariate analysis of groundwater-surface water interactions in urbanized Mediterranean streams
title_sort Assessment by multivariate analysis of groundwater-surface water interactions in urbanized Mediterranean streams
dc.creator.none.fl_str_mv Menció i Domingo, Anna
Mas-Pla, Josep
author Menció i Domingo, Anna
author_facet Menció i Domingo, Anna
Mas-Pla, Josep
author_role author
author2 Mas-Pla, Josep
author2_role author
dc.contributor.none.fl_str_mv Comisión Interministerial de Ciencia y Tecnología (Espanya)
dc.subject.none.fl_str_mv Anàlisi de conglomerats
Cluster analysis
Aigua -- Química
Water chemistry
Hidrologia
Hydrology
Recursos hidràulics -- Explotació
Water resources development
topic Anàlisi de conglomerats
Cluster analysis
Aigua -- Química
Water chemistry
Hidrologia
Hydrology
Recursos hidràulics -- Explotació
Water resources development
description Streams in Mediterranean areas are characterized by a variable discharge regime with annual floods and droughts. Natural flow perturbations result in permanent and temporary rivers and, as a consequence, unique ecosystems. Human pressures such as treated and non-treated waste water discharge impact severely on these streams, since waste water dilution depends on river flow dynamics. Furthermore, their hydrological status worsens with the capture of stream discharge by surface or groundwater exploitation. Multivariate analysis has been widely used to analyze large sets of variables in environmental studies. In the present work, a hydrological study reinforced by principal component analysis (PCA), followed by cluster analysis of the PCA results, has been used to determine surface water origin and its interactions with groundwater in Mediterranean streams. The results show that hydrological observations are supported by PCA and cluster analysis. Additionally, this joint analysis makes it possible to observe the significance of the interaction between streams and aquifers in anthropized Mediterranean Basins. Groundwater exploitation can seriously impact on permanent streams, reducing their dilution capacity, and can even cause the capture of the whole stream discharge. Furthermore, good quality water contributions allow continuous stream flows and better waste water dilutions all year long. Finally, the results show that the presence and quality of surface water in temporary reaches during dry periods directly depends on groundwater contributions
publishDate 2008
dc.date.none.fl_str_mv 2008
info
info
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10256/12914
http://hdl.handle.net/10256/12914
url http://hdl.handle.net/10256/12914
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jhydrol.2008.01.014
info:eu-repo/semantics/altIdentifier/issn/0022-1694
MICYT/2005-2008/CGL2005-08019-C04-02
dc.rights.none.fl_str_mv Tots els drets reservats
info:eu-repo/semantics/embargoedAccess
rights_invalid_str_mv Tots els drets reservats
eu_rights_str_mv embargoedAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv © Journal of Hydrology, 2008, vol. 352, núm. 3-4, p. 355-366
Articles publicats (D-CCAA)
reponame:Recercat. Dipósit de la Recerca de Catalunya
instname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
instname_str Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
reponame_str Recercat. Dipósit de la Recerca de Catalunya
collection Recercat. Dipósit de la Recerca de Catalunya
repository.name.fl_str_mv
repository.mail.fl_str_mv
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