ENSO-triggered exceptional flooding in the Paraná River: Where is the excess water coming from?

Autores
Pasquini, Andrea Ines; Depetris Gallino, Pedro Jose
Año de publicación
2010
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The Paraná River has been increasing its annual flow during the last ∼30 years. The relative contribution of its major tributaries (i.e., the upper Paraná and Paraguay rivers) is uneven in as much as the Paraguay is increasing its annual discharge at a higher pace than the upper Paraná does. Contrastingly, the upper Paraná has been increasing significantly its flow during the second half of the year (i.e., historical low water period) whereas the Paraguay River has been amplifying its flow throughout the hydrological year. The variability of δ 18O measured in the Paraná River middle reach tends to follow Paraguay's relative contribution to Paraná's total discharge. A simple model built on the basis of the mean δ 18O signature of rainfall (Global Network of Isotopes in Precipitation) shows significant coherency with the relative contribution time series during non-El Niño periods but it is necessary to invert the mean isotopic values in precipitation during the occurrence of a major ENSO event (i.e., assume that δ 18O in upper Paraná River water becomes more negative than usual) to improve the resemblance to the observed variability.
Fil: Pasquini, Andrea Ines. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Ciencias de la Tierra. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones en Ciencias de la Tierra; Argentina
Fil: Depetris Gallino, Pedro Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Ciencias de la Tierra. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones en Ciencias de la Tierra; Argentina
Materia
Enso
Flood Sources
ParanÁ River
Spectral Analysis
Stable Isotopes
Trend Analysis
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/55339
Acceder
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network_name_str CONICET Digital (CONICET)
spelling ENSO-triggered exceptional flooding in the Paraná River: Where is the excess water coming from?Pasquini, Andrea InesDepetris Gallino, Pedro JoseEnsoFlood SourcesParanÁ RiverSpectral AnalysisStable IsotopesTrend Analysishttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1The Paraná River has been increasing its annual flow during the last ∼30 years. The relative contribution of its major tributaries (i.e., the upper Paraná and Paraguay rivers) is uneven in as much as the Paraguay is increasing its annual discharge at a higher pace than the upper Paraná does. Contrastingly, the upper Paraná has been increasing significantly its flow during the second half of the year (i.e., historical low water period) whereas the Paraguay River has been amplifying its flow throughout the hydrological year. The variability of δ 18O measured in the Paraná River middle reach tends to follow Paraguay's relative contribution to Paraná's total discharge. A simple model built on the basis of the mean δ 18O signature of rainfall (Global Network of Isotopes in Precipitation) shows significant coherency with the relative contribution time series during non-El Niño periods but it is necessary to invert the mean isotopic values in precipitation during the occurrence of a major ENSO event (i.e., assume that δ 18O in upper Paraná River water becomes more negative than usual) to improve the resemblance to the observed variability.Fil: Pasquini, Andrea Ines. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Ciencias de la Tierra. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones en Ciencias de la Tierra; ArgentinaFil: Depetris Gallino, Pedro Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Ciencias de la Tierra. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones en Ciencias de la Tierra; ArgentinaElsevier Science2010-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/55339Pasquini, Andrea Ines; Depetris Gallino, Pedro Jose; ENSO-triggered exceptional flooding in the Paraná River: Where is the excess water coming from?; Elsevier Science; Journal Of Hydrology; 383; 3-4; 3-2010; 186-1930022-1694CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0022169409008294info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jhydrol.2009.12.035info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:37:10Zoai:ri.conicet.gov.ar:11336/55339instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 09:37:10.846CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv ENSO-triggered exceptional flooding in the Paraná River: Where is the excess water coming from?
title ENSO-triggered exceptional flooding in the Paraná River: Where is the excess water coming from?
spellingShingle ENSO-triggered exceptional flooding in the Paraná River: Where is the excess water coming from?
Pasquini, Andrea Ines
Enso
Flood Sources
ParanÁ River
Spectral Analysis
Stable Isotopes
Trend Analysis
title_short ENSO-triggered exceptional flooding in the Paraná River: Where is the excess water coming from?
title_full ENSO-triggered exceptional flooding in the Paraná River: Where is the excess water coming from?
title_fullStr ENSO-triggered exceptional flooding in the Paraná River: Where is the excess water coming from?
title_full_unstemmed ENSO-triggered exceptional flooding in the Paraná River: Where is the excess water coming from?
title_sort ENSO-triggered exceptional flooding in the Paraná River: Where is the excess water coming from?
dc.creator.none.fl_str_mv Pasquini, Andrea Ines
Depetris Gallino, Pedro Jose
author Pasquini, Andrea Ines
author_facet Pasquini, Andrea Ines
Depetris Gallino, Pedro Jose
author_role author
author2 Depetris Gallino, Pedro Jose
author2_role author
dc.subject.none.fl_str_mv Enso
Flood Sources
ParanÁ River
Spectral Analysis
Stable Isotopes
Trend Analysis
topic Enso
Flood Sources
ParanÁ River
Spectral Analysis
Stable Isotopes
Trend Analysis
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The Paraná River has been increasing its annual flow during the last ∼30 years. The relative contribution of its major tributaries (i.e., the upper Paraná and Paraguay rivers) is uneven in as much as the Paraguay is increasing its annual discharge at a higher pace than the upper Paraná does. Contrastingly, the upper Paraná has been increasing significantly its flow during the second half of the year (i.e., historical low water period) whereas the Paraguay River has been amplifying its flow throughout the hydrological year. The variability of δ 18O measured in the Paraná River middle reach tends to follow Paraguay's relative contribution to Paraná's total discharge. A simple model built on the basis of the mean δ 18O signature of rainfall (Global Network of Isotopes in Precipitation) shows significant coherency with the relative contribution time series during non-El Niño periods but it is necessary to invert the mean isotopic values in precipitation during the occurrence of a major ENSO event (i.e., assume that δ 18O in upper Paraná River water becomes more negative than usual) to improve the resemblance to the observed variability.
Fil: Pasquini, Andrea Ines. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Ciencias de la Tierra. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones en Ciencias de la Tierra; Argentina
Fil: Depetris Gallino, Pedro Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Ciencias de la Tierra. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones en Ciencias de la Tierra; Argentina
description The Paraná River has been increasing its annual flow during the last ∼30 years. The relative contribution of its major tributaries (i.e., the upper Paraná and Paraguay rivers) is uneven in as much as the Paraguay is increasing its annual discharge at a higher pace than the upper Paraná does. Contrastingly, the upper Paraná has been increasing significantly its flow during the second half of the year (i.e., historical low water period) whereas the Paraguay River has been amplifying its flow throughout the hydrological year. The variability of δ 18O measured in the Paraná River middle reach tends to follow Paraguay's relative contribution to Paraná's total discharge. A simple model built on the basis of the mean δ 18O signature of rainfall (Global Network of Isotopes in Precipitation) shows significant coherency with the relative contribution time series during non-El Niño periods but it is necessary to invert the mean isotopic values in precipitation during the occurrence of a major ENSO event (i.e., assume that δ 18O in upper Paraná River water becomes more negative than usual) to improve the resemblance to the observed variability.
publishDate 2010
dc.date.none.fl_str_mv 2010-03
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/55339
Pasquini, Andrea Ines; Depetris Gallino, Pedro Jose; ENSO-triggered exceptional flooding in the Paraná River: Where is the excess water coming from?; Elsevier Science; Journal Of Hydrology; 383; 3-4; 3-2010; 186-193
0022-1694
CONICET Digital
CONICET
url http://hdl.handle.net/11336/55339
identifier_str_mv Pasquini, Andrea Ines; Depetris Gallino, Pedro Jose; ENSO-triggered exceptional flooding in the Paraná River: Where is the excess water coming from?; Elsevier Science; Journal Of Hydrology; 383; 3-4; 3-2010; 186-193
0022-1694
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0022169409008294
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jhydrol.2009.12.035
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier Science
publisher.none.fl_str_mv Elsevier Science
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.069144

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