Where does the chilean aconcagua river come from? Use of natural tracers for water genesis characterization in glacial and periglacial environments

Autores
Crespo, Sebastián Andrés; Lavergne, Céline; Fernandoy, Francisco; Muñoz, Ariel A.; Cara Ramirez, Leandro Javier; Olfos Vargas, Simón
Año de publicación
2020
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The Aconcagua river basin (Chile, 32◦S) has suffered the effects of the megadrought over the last decade. The severe snowfall deficiency drastically modified the water supply to the catchment headwaters. Despite the recognized snowmelt contribution to the basin, an unknown streamflow buffering effect is produced by glacial, periglacial and groundwater inputs, especially in dry periods. Hence, each type of water source was characterized and quantified for each season, through the combination of stable isotope and ionic analyses as natural water tracers. The δ18O and electric conductivity were identified as the key parameters for the differentiation of each water source. The use of these parameters in the stable isotope mixing “simmr” model revealed that snowmelt input accounted 52% in spring and only 22–36% during the rest of the year in the headwaters. While glacial supply contributed up to 34%, both groundwater and periglacial exhibited a remarkable contribution around 20% with some seasonal variations. Downstream, glacial contribution averaged 15–20%, groundwater seasonally increased up to 46%, and periglacial input was surprisingly high (i.e., 14–21%). The different water sources contribution quantification over time for the Aconcagua River reported in this work provides key information for water security in this territory.
Fil: Crespo, Sebastián Andrés. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; Argentina. Pontificia Universidad Católica de Valparaíso; Chile
Fil: Lavergne, Céline. Universidad de Playa Ancha; Chile
Fil: Fernandoy, Francisco. Universidad Andrés Bello; Chile
Fil: Muñoz, Ariel A.. Pontificia Universidad Católica de Valparaíso; Chile
Fil: Cara Ramirez, Leandro Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; Argentina
Fil: Olfos Vargas, Simón. Pontificia Universidad Católica de Valparaíso; Chile
Materia
CENTRAL ANDES
GLACIERS
GROUNDWATER
NATURAL TRACERS
ROCK GLACIERS
SNOW
STABLE ISOTOPES
WATER SOURCES
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:11336/143102
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/143102
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Where does the chilean aconcagua river come from? Use of natural tracers for water genesis characterization in glacial and periglacial environmentsCrespo, Sebastián AndrésLavergne, CélineFernandoy, FranciscoMuñoz, Ariel A.Cara Ramirez, Leandro JavierOlfos Vargas, SimónCENTRAL ANDESGLACIERSGROUNDWATERNATURAL TRACERSROCK GLACIERSSNOWSTABLE ISOTOPESWATER SOURCEShttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1The Aconcagua river basin (Chile, 32◦S) has suffered the effects of the megadrought over the last decade. The severe snowfall deficiency drastically modified the water supply to the catchment headwaters. Despite the recognized snowmelt contribution to the basin, an unknown streamflow buffering effect is produced by glacial, periglacial and groundwater inputs, especially in dry periods. Hence, each type of water source was characterized and quantified for each season, through the combination of stable isotope and ionic analyses as natural water tracers. The δ18O and electric conductivity were identified as the key parameters for the differentiation of each water source. The use of these parameters in the stable isotope mixing “simmr” model revealed that snowmelt input accounted 52% in spring and only 22–36% during the rest of the year in the headwaters. While glacial supply contributed up to 34%, both groundwater and periglacial exhibited a remarkable contribution around 20% with some seasonal variations. Downstream, glacial contribution averaged 15–20%, groundwater seasonally increased up to 46%, and periglacial input was surprisingly high (i.e., 14–21%). The different water sources contribution quantification over time for the Aconcagua River reported in this work provides key information for water security in this territory.Fil: Crespo, Sebastián Andrés. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; Argentina. Pontificia Universidad Católica de Valparaíso; ChileFil: Lavergne, Céline. Universidad de Playa Ancha; ChileFil: Fernandoy, Francisco. Universidad Andrés Bello; ChileFil: Muñoz, Ariel A.. Pontificia Universidad Católica de Valparaíso; ChileFil: Cara Ramirez, Leandro Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; ArgentinaFil: Olfos Vargas, Simón. Pontificia Universidad Católica de Valparaíso; ChileMolecular Diversity Preservation International2020-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/143102Crespo, Sebastián Andrés; Lavergne, Céline; Fernandoy, Francisco; Muñoz, Ariel A.; Cara Ramirez, Leandro Javier; et al.; Where does the chilean aconcagua river come from? Use of natural tracers for water genesis characterization in glacial and periglacial environments; Molecular Diversity Preservation International; Water; 12; 9; 9-2020; 1-182073-4441CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.mdpi.com/2073-4441/12/9/2630info:eu-repo/semantics/altIdentifier/doi/10.3390/w12092630info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T15:04:13Zoai:ri.conicet.gov.ar:11336/143102instacron: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:34982025-10-15 15:04:13.781CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Where does the chilean aconcagua river come from? Use of natural tracers for water genesis characterization in glacial and periglacial environments
title Where does the chilean aconcagua river come from? Use of natural tracers for water genesis characterization in glacial and periglacial environments
spellingShingle Where does the chilean aconcagua river come from? Use of natural tracers for water genesis characterization in glacial and periglacial environments
Crespo, Sebastián Andrés
CENTRAL ANDES
GLACIERS
GROUNDWATER
NATURAL TRACERS
ROCK GLACIERS
SNOW
STABLE ISOTOPES
WATER SOURCES
title_short Where does the chilean aconcagua river come from? Use of natural tracers for water genesis characterization in glacial and periglacial environments
title_full Where does the chilean aconcagua river come from? Use of natural tracers for water genesis characterization in glacial and periglacial environments
title_fullStr Where does the chilean aconcagua river come from? Use of natural tracers for water genesis characterization in glacial and periglacial environments
title_full_unstemmed Where does the chilean aconcagua river come from? Use of natural tracers for water genesis characterization in glacial and periglacial environments
title_sort Where does the chilean aconcagua river come from? Use of natural tracers for water genesis characterization in glacial and periglacial environments
dc.creator.none.fl_str_mv Crespo, Sebastián Andrés
Lavergne, Céline
Fernandoy, Francisco
Muñoz, Ariel A.
Cara Ramirez, Leandro Javier
Olfos Vargas, Simón
author Crespo, Sebastián Andrés
author_facet Crespo, Sebastián Andrés
Lavergne, Céline
Fernandoy, Francisco
Muñoz, Ariel A.
Cara Ramirez, Leandro Javier
Olfos Vargas, Simón
author_role author
author2 Lavergne, Céline
Fernandoy, Francisco
Muñoz, Ariel A.
Cara Ramirez, Leandro Javier
Olfos Vargas, Simón
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv CENTRAL ANDES
GLACIERS
GROUNDWATER
NATURAL TRACERS
ROCK GLACIERS
SNOW
STABLE ISOTOPES
WATER SOURCES
topic CENTRAL ANDES
GLACIERS
GROUNDWATER
NATURAL TRACERS
ROCK GLACIERS
SNOW
STABLE ISOTOPES
WATER SOURCES
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 Aconcagua river basin (Chile, 32◦S) has suffered the effects of the megadrought over the last decade. The severe snowfall deficiency drastically modified the water supply to the catchment headwaters. Despite the recognized snowmelt contribution to the basin, an unknown streamflow buffering effect is produced by glacial, periglacial and groundwater inputs, especially in dry periods. Hence, each type of water source was characterized and quantified for each season, through the combination of stable isotope and ionic analyses as natural water tracers. The δ18O and electric conductivity were identified as the key parameters for the differentiation of each water source. The use of these parameters in the stable isotope mixing “simmr” model revealed that snowmelt input accounted 52% in spring and only 22–36% during the rest of the year in the headwaters. While glacial supply contributed up to 34%, both groundwater and periglacial exhibited a remarkable contribution around 20% with some seasonal variations. Downstream, glacial contribution averaged 15–20%, groundwater seasonally increased up to 46%, and periglacial input was surprisingly high (i.e., 14–21%). The different water sources contribution quantification over time for the Aconcagua River reported in this work provides key information for water security in this territory.
Fil: Crespo, Sebastián Andrés. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; Argentina. Pontificia Universidad Católica de Valparaíso; Chile
Fil: Lavergne, Céline. Universidad de Playa Ancha; Chile
Fil: Fernandoy, Francisco. Universidad Andrés Bello; Chile
Fil: Muñoz, Ariel A.. Pontificia Universidad Católica de Valparaíso; Chile
Fil: Cara Ramirez, Leandro Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; Argentina
Fil: Olfos Vargas, Simón. Pontificia Universidad Católica de Valparaíso; Chile
description The Aconcagua river basin (Chile, 32◦S) has suffered the effects of the megadrought over the last decade. The severe snowfall deficiency drastically modified the water supply to the catchment headwaters. Despite the recognized snowmelt contribution to the basin, an unknown streamflow buffering effect is produced by glacial, periglacial and groundwater inputs, especially in dry periods. Hence, each type of water source was characterized and quantified for each season, through the combination of stable isotope and ionic analyses as natural water tracers. The δ18O and electric conductivity were identified as the key parameters for the differentiation of each water source. The use of these parameters in the stable isotope mixing “simmr” model revealed that snowmelt input accounted 52% in spring and only 22–36% during the rest of the year in the headwaters. While glacial supply contributed up to 34%, both groundwater and periglacial exhibited a remarkable contribution around 20% with some seasonal variations. Downstream, glacial contribution averaged 15–20%, groundwater seasonally increased up to 46%, and periglacial input was surprisingly high (i.e., 14–21%). The different water sources contribution quantification over time for the Aconcagua River reported in this work provides key information for water security in this territory.
publishDate 2020
dc.date.none.fl_str_mv 2020-09
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/11336/143102
Crespo, Sebastián Andrés; Lavergne, Céline; Fernandoy, Francisco; Muñoz, Ariel A.; Cara Ramirez, Leandro Javier; et al.; Where does the chilean aconcagua river come from? Use of natural tracers for water genesis characterization in glacial and periglacial environments; Molecular Diversity Preservation International; Water; 12; 9; 9-2020; 1-18
2073-4441
CONICET Digital
CONICET
url http://hdl.handle.net/11336/143102
identifier_str_mv Crespo, Sebastián Andrés; Lavergne, Céline; Fernandoy, Francisco; Muñoz, Ariel A.; Cara Ramirez, Leandro Javier; et al.; Where does the chilean aconcagua river come from? Use of natural tracers for water genesis characterization in glacial and periglacial environments; Molecular Diversity Preservation International; Water; 12; 9; 9-2020; 1-18
2073-4441
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.mdpi.com/2073-4441/12/9/2630
info:eu-repo/semantics/altIdentifier/doi/10.3390/w12092630
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 Molecular Diversity Preservation International
publisher.none.fl_str_mv Molecular Diversity Preservation International
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 13.22299

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