Delays and declines in hydrological extremes in nivo‐glacial rivers of Mendoza, Argentina

Autores
Lauro, Carolina; Vich, Alberto Ismael Juan; Rivera, Juan Antonio
Año de publicación
2025
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Climate change is altering river regimes in mountainous regions, affecting water availability and the functioning of aquatic ecosystems. In the Andes Mountains, characterizing the natural flow regime is essential for establishing operational conditions that balance multiple water uses (irrigation, supply, hydropower) with the conservation of high-elevation ecosystems in the context of increasing hydroclimatic variability. This study analyzes extreme hydrological conditions in nivo-glacial rivers of the upper Mendoza River Basin (Argentina), using indicators of magnitude, frequency, duration, and timing of high (HP) and low (LP) pulses. Daily flow records from the Cuevas, Vacas, Tupungato, and Mendoza Rivers were used to define eight ecologically relevant extreme hydrological parameters over the period 1956–2023. The results reveal a reduction in the magnitude of extreme flows since 2010 (−30% to – 55%) and significant delays in their timing, with maximum and minimum flow shifting by 15–20 days later in recent decades. The duration of LP events increased by 120%–240% in the Cuevas, Tupungato, and Mendoza Rivers, while in the Tupungato River, HP events tended to occur less frequently but with longer durations. These changes are associated with a 0.1°C decade−1 rise in mean temperature and a ∼25% decrease in precipitation since 2009. Such trends have major implications for water resource management and the resilience of high-Andean ecosystems under climate warming.
Fil: Lauro, Carolina. 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: Vich, Alberto Ismael Juan. 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: Rivera, Juan Antonio. 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
Materia
CENTRAL ANDES
ECOSYSTEMS
INDICATORS OF HYDROLOGIC ALTERATION
MAXIMUMS
MINIMUMS
NIVO GLACIAL REGIME
VARIABILITY
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/289519
Acceder
id CONICETDig_a0bcc49b6ba97729e448070cbdc57600
oai_identifier_str oai:ri.conicet.gov.ar:11336/289519
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Delays and declines in hydrological extremes in nivo‐glacial rivers of Mendoza, ArgentinaLauro, CarolinaVich, Alberto Ismael JuanRivera, Juan AntonioCENTRAL ANDESECOSYSTEMSINDICATORS OF HYDROLOGIC ALTERATIONMAXIMUMSMINIMUMSNIVO GLACIAL REGIMEVARIABILITYhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Climate change is altering river regimes in mountainous regions, affecting water availability and the functioning of aquatic ecosystems. In the Andes Mountains, characterizing the natural flow regime is essential for establishing operational conditions that balance multiple water uses (irrigation, supply, hydropower) with the conservation of high-elevation ecosystems in the context of increasing hydroclimatic variability. This study analyzes extreme hydrological conditions in nivo-glacial rivers of the upper Mendoza River Basin (Argentina), using indicators of magnitude, frequency, duration, and timing of high (HP) and low (LP) pulses. Daily flow records from the Cuevas, Vacas, Tupungato, and Mendoza Rivers were used to define eight ecologically relevant extreme hydrological parameters over the period 1956–2023. The results reveal a reduction in the magnitude of extreme flows since 2010 (−30% to – 55%) and significant delays in their timing, with maximum and minimum flow shifting by 15–20 days later in recent decades. The duration of LP events increased by 120%–240% in the Cuevas, Tupungato, and Mendoza Rivers, while in the Tupungato River, HP events tended to occur less frequently but with longer durations. These changes are associated with a 0.1°C decade−1 rise in mean temperature and a ∼25% decrease in precipitation since 2009. Such trends have major implications for water resource management and the resilience of high-Andean ecosystems under climate warming.Fil: Lauro, Carolina. 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: Vich, Alberto Ismael Juan. 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: Rivera, Juan Antonio. 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; ArgentinaWiley2025-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/289519Lauro, Carolina; Vich, Alberto Ismael Juan; Rivera, Juan Antonio; Delays and declines in hydrological extremes in nivo‐glacial rivers of Mendoza, Argentina; Wiley; River; 4; 4; 12-2025; 431-4442750-4867CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/10.1002/rvr2.70034info:eu-repo/semantics/altIdentifier/doi/10.1002/rvr2.70034info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2026-08-25T14:37:38Zoai:ri.conicet.gov.ar:11336/289519instacron: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:34982026-08-25 14:37:39.023CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Delays and declines in hydrological extremes in nivo‐glacial rivers of Mendoza, Argentina
title Delays and declines in hydrological extremes in nivo‐glacial rivers of Mendoza, Argentina
spellingShingle Delays and declines in hydrological extremes in nivo‐glacial rivers of Mendoza, Argentina
Lauro, Carolina
CENTRAL ANDES
ECOSYSTEMS
INDICATORS OF HYDROLOGIC ALTERATION
MAXIMUMS
MINIMUMS
NIVO GLACIAL REGIME
VARIABILITY
title_short Delays and declines in hydrological extremes in nivo‐glacial rivers of Mendoza, Argentina
title_full Delays and declines in hydrological extremes in nivo‐glacial rivers of Mendoza, Argentina
title_fullStr Delays and declines in hydrological extremes in nivo‐glacial rivers of Mendoza, Argentina
title_full_unstemmed Delays and declines in hydrological extremes in nivo‐glacial rivers of Mendoza, Argentina
title_sort Delays and declines in hydrological extremes in nivo‐glacial rivers of Mendoza, Argentina
dc.creator.none.fl_str_mv Lauro, Carolina
Vich, Alberto Ismael Juan
Rivera, Juan Antonio
author Lauro, Carolina
author_facet Lauro, Carolina
Vich, Alberto Ismael Juan
Rivera, Juan Antonio
author_role author
author2 Vich, Alberto Ismael Juan
Rivera, Juan Antonio
author2_role author
author
dc.subject.none.fl_str_mv CENTRAL ANDES
ECOSYSTEMS
INDICATORS OF HYDROLOGIC ALTERATION
MAXIMUMS
MINIMUMS
NIVO GLACIAL REGIME
VARIABILITY
topic CENTRAL ANDES
ECOSYSTEMS
INDICATORS OF HYDROLOGIC ALTERATION
MAXIMUMS
MINIMUMS
NIVO GLACIAL REGIME
VARIABILITY
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Climate change is altering river regimes in mountainous regions, affecting water availability and the functioning of aquatic ecosystems. In the Andes Mountains, characterizing the natural flow regime is essential for establishing operational conditions that balance multiple water uses (irrigation, supply, hydropower) with the conservation of high-elevation ecosystems in the context of increasing hydroclimatic variability. This study analyzes extreme hydrological conditions in nivo-glacial rivers of the upper Mendoza River Basin (Argentina), using indicators of magnitude, frequency, duration, and timing of high (HP) and low (LP) pulses. Daily flow records from the Cuevas, Vacas, Tupungato, and Mendoza Rivers were used to define eight ecologically relevant extreme hydrological parameters over the period 1956–2023. The results reveal a reduction in the magnitude of extreme flows since 2010 (−30% to – 55%) and significant delays in their timing, with maximum and minimum flow shifting by 15–20 days later in recent decades. The duration of LP events increased by 120%–240% in the Cuevas, Tupungato, and Mendoza Rivers, while in the Tupungato River, HP events tended to occur less frequently but with longer durations. These changes are associated with a 0.1°C decade−1 rise in mean temperature and a ∼25% decrease in precipitation since 2009. Such trends have major implications for water resource management and the resilience of high-Andean ecosystems under climate warming.
Fil: Lauro, Carolina. 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: Vich, Alberto Ismael Juan. 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: Rivera, Juan Antonio. 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
description Climate change is altering river regimes in mountainous regions, affecting water availability and the functioning of aquatic ecosystems. In the Andes Mountains, characterizing the natural flow regime is essential for establishing operational conditions that balance multiple water uses (irrigation, supply, hydropower) with the conservation of high-elevation ecosystems in the context of increasing hydroclimatic variability. This study analyzes extreme hydrological conditions in nivo-glacial rivers of the upper Mendoza River Basin (Argentina), using indicators of magnitude, frequency, duration, and timing of high (HP) and low (LP) pulses. Daily flow records from the Cuevas, Vacas, Tupungato, and Mendoza Rivers were used to define eight ecologically relevant extreme hydrological parameters over the period 1956–2023. The results reveal a reduction in the magnitude of extreme flows since 2010 (−30% to – 55%) and significant delays in their timing, with maximum and minimum flow shifting by 15–20 days later in recent decades. The duration of LP events increased by 120%–240% in the Cuevas, Tupungato, and Mendoza Rivers, while in the Tupungato River, HP events tended to occur less frequently but with longer durations. These changes are associated with a 0.1°C decade−1 rise in mean temperature and a ∼25% decrease in precipitation since 2009. Such trends have major implications for water resource management and the resilience of high-Andean ecosystems under climate warming.
publishDate 2025
dc.date.none.fl_str_mv 2025-12
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/11336/289519
Lauro, Carolina; Vich, Alberto Ismael Juan; Rivera, Juan Antonio; Delays and declines in hydrological extremes in nivo‐glacial rivers of Mendoza, Argentina; Wiley; River; 4; 4; 12-2025; 431-444
2750-4867
CONICET Digital
CONICET
url http://hdl.handle.net/11336/289519
identifier_str_mv Lauro, Carolina; Vich, Alberto Ismael Juan; Rivera, Juan Antonio; Delays and declines in hydrological extremes in nivo‐glacial rivers of Mendoza, Argentina; Wiley; River; 4; 4; 12-2025; 431-444
2750-4867
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://onlinelibrary.wiley.com/doi/10.1002/rvr2.70034
info:eu-repo/semantics/altIdentifier/doi/10.1002/rvr2.70034
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Wiley
publisher.none.fl_str_mv Wiley
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 13.24418

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