Spatiotemporal variations in hydroclimate across the Mediterranean Andes (30°-37°S) since the early twentieth century

Autores
González Reyes, Álvaro; McPhee, James; Christie, Duncan A.; Quesne, Carlos Le; Szejner, Paul; Masiokas, Mariano Hugo; Villalba, Ricardo; Muñoz, Ariel A.; Crespo, Sebastián Andrés
Año de publicación
2017
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
In the Mediterranean Andes region (MA; 30°-37°S), the main rivers are largely fed by melting snowpack and provide freshwater to around 10 million people on both sides of the Andes Mountains. Water resources in the MA are under pressure because of the extensive development of industrial agriculture and mining activities. This pressure is increasing as the region faces one of its worst recorded droughts. Previous studies have pointed to El Niño-Southern Oscillation (ENSO) as the main climatic force impacting the MA. However, the role of decadal and multidecadal climate variability, their spatial patterns, and the recurrence of long-term droughts remains poorly studied. In an attempt to better understand these factors, spatial and temporal patterns of hydroclimatic variability are analyzed using an extensive database of streamflow, precipitation, and snowpack covering the period between 1910 and 2011. These analyses are based on the combination of correlation, principal components, and kernel estimation techniques. Despite a general common pattern across the MA, the results presented here identify two hydroclimatic subregions, located north and south of 34°S. While the interannual variability associated with ENSO is slightly stronger north of 34°S, the variability associated with the Pacific decadal oscillation (PDO) and/or the interdecadal Pacific oscillation (IPO) index shows similar patterns in both regions. However, variations produced by the IPO forcing seem to be greater in the southern subregion since 1975. The estimations presented here on drought recurrence reveal a generalized increase in dry extremes since the 1950s. These findings suggest that the northern MA is more vulnerable to changes in hydrology and climate than the southern MA.
Fil: González Reyes, Álvaro. Universidad Austral de Chile; Chile
Fil: McPhee, James. Universidad de Chile; Chile
Fil: Christie, Duncan A.. Universidad de Chile; Chile. Universidad Austral de Chile; Chile
Fil: Quesne, Carlos Le. Universidad Austral de Chile; Chile
Fil: Szejner, Paul. University of Arizona; Estados Unidos
Fil: Masiokas, Mariano Hugo. 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: Villalba, Ricardo. 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: Muñoz, Ariel A.. Pontificia Universidad Católica de Valparaíso; Chile
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
Materia
CLIMATE VARIABILITY
DECADAL VARIABILITY
SOUTH AMERICA
STREAMFLOW
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:11336/60263
Acceder
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spelling Spatiotemporal variations in hydroclimate across the Mediterranean Andes (30°-37°S) since the early twentieth centuryGonzález Reyes, ÁlvaroMcPhee, JamesChristie, Duncan A.Quesne, Carlos LeSzejner, PaulMasiokas, Mariano HugoVillalba, RicardoMuñoz, Ariel A.Crespo, Sebastián AndrésCLIMATE VARIABILITYDECADAL VARIABILITYSOUTH AMERICASTREAMFLOWhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1In the Mediterranean Andes region (MA; 30°-37°S), the main rivers are largely fed by melting snowpack and provide freshwater to around 10 million people on both sides of the Andes Mountains. Water resources in the MA are under pressure because of the extensive development of industrial agriculture and mining activities. This pressure is increasing as the region faces one of its worst recorded droughts. Previous studies have pointed to El Niño-Southern Oscillation (ENSO) as the main climatic force impacting the MA. However, the role of decadal and multidecadal climate variability, their spatial patterns, and the recurrence of long-term droughts remains poorly studied. In an attempt to better understand these factors, spatial and temporal patterns of hydroclimatic variability are analyzed using an extensive database of streamflow, precipitation, and snowpack covering the period between 1910 and 2011. These analyses are based on the combination of correlation, principal components, and kernel estimation techniques. Despite a general common pattern across the MA, the results presented here identify two hydroclimatic subregions, located north and south of 34°S. While the interannual variability associated with ENSO is slightly stronger north of 34°S, the variability associated with the Pacific decadal oscillation (PDO) and/or the interdecadal Pacific oscillation (IPO) index shows similar patterns in both regions. However, variations produced by the IPO forcing seem to be greater in the southern subregion since 1975. The estimations presented here on drought recurrence reveal a generalized increase in dry extremes since the 1950s. These findings suggest that the northern MA is more vulnerable to changes in hydrology and climate than the southern MA.Fil: González Reyes, Álvaro. Universidad Austral de Chile; ChileFil: McPhee, James. Universidad de Chile; ChileFil: Christie, Duncan A.. Universidad de Chile; Chile. Universidad Austral de Chile; ChileFil: Quesne, Carlos Le. Universidad Austral de Chile; ChileFil: Szejner, Paul. University of Arizona; Estados UnidosFil: Masiokas, Mariano Hugo. 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: Villalba, Ricardo. 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: Muñoz, Ariel A.. Pontificia Universidad Católica de Valparaíso; ChileFil: 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; ArgentinaAmerican Meteorological Society2017-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/60263González Reyes, Álvaro; McPhee, James; Christie, Duncan A.; Quesne, Carlos Le; Szejner, Paul; et al.; Spatiotemporal variations in hydroclimate across the Mediterranean Andes (30°-37°S) since the early twentieth century; American Meteorological Society; Journal Of Hydrometeorology; 18; 7; 7-2017; 1929-19421525-755XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1175/JHM-D-16-0004.1info:eu-repo/semantics/altIdentifier/url/https://journals.ametsoc.org/doi/10.1175/JHM-D-16-0004.1info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:55:50Zoai:ri.conicet.gov.ar:11336/60263instacron: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:34982025-09-03 09:55:50.758CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Spatiotemporal variations in hydroclimate across the Mediterranean Andes (30°-37°S) since the early twentieth century
title Spatiotemporal variations in hydroclimate across the Mediterranean Andes (30°-37°S) since the early twentieth century
spellingShingle Spatiotemporal variations in hydroclimate across the Mediterranean Andes (30°-37°S) since the early twentieth century
González Reyes, Álvaro
CLIMATE VARIABILITY
DECADAL VARIABILITY
SOUTH AMERICA
STREAMFLOW
title_short Spatiotemporal variations in hydroclimate across the Mediterranean Andes (30°-37°S) since the early twentieth century
title_full Spatiotemporal variations in hydroclimate across the Mediterranean Andes (30°-37°S) since the early twentieth century
title_fullStr Spatiotemporal variations in hydroclimate across the Mediterranean Andes (30°-37°S) since the early twentieth century
title_full_unstemmed Spatiotemporal variations in hydroclimate across the Mediterranean Andes (30°-37°S) since the early twentieth century
title_sort Spatiotemporal variations in hydroclimate across the Mediterranean Andes (30°-37°S) since the early twentieth century
dc.creator.none.fl_str_mv González Reyes, Álvaro
McPhee, James
Christie, Duncan A.
Quesne, Carlos Le
Szejner, Paul
Masiokas, Mariano Hugo
Villalba, Ricardo
Muñoz, Ariel A.
Crespo, Sebastián Andrés
author González Reyes, Álvaro
author_facet González Reyes, Álvaro
McPhee, James
Christie, Duncan A.
Quesne, Carlos Le
Szejner, Paul
Masiokas, Mariano Hugo
Villalba, Ricardo
Muñoz, Ariel A.
Crespo, Sebastián Andrés
author_role author
author2 McPhee, James
Christie, Duncan A.
Quesne, Carlos Le
Szejner, Paul
Masiokas, Mariano Hugo
Villalba, Ricardo
Muñoz, Ariel A.
Crespo, Sebastián Andrés
author2_role author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv CLIMATE VARIABILITY
DECADAL VARIABILITY
SOUTH AMERICA
STREAMFLOW
topic CLIMATE VARIABILITY
DECADAL VARIABILITY
SOUTH AMERICA
STREAMFLOW
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv In the Mediterranean Andes region (MA; 30°-37°S), the main rivers are largely fed by melting snowpack and provide freshwater to around 10 million people on both sides of the Andes Mountains. Water resources in the MA are under pressure because of the extensive development of industrial agriculture and mining activities. This pressure is increasing as the region faces one of its worst recorded droughts. Previous studies have pointed to El Niño-Southern Oscillation (ENSO) as the main climatic force impacting the MA. However, the role of decadal and multidecadal climate variability, their spatial patterns, and the recurrence of long-term droughts remains poorly studied. In an attempt to better understand these factors, spatial and temporal patterns of hydroclimatic variability are analyzed using an extensive database of streamflow, precipitation, and snowpack covering the period between 1910 and 2011. These analyses are based on the combination of correlation, principal components, and kernel estimation techniques. Despite a general common pattern across the MA, the results presented here identify two hydroclimatic subregions, located north and south of 34°S. While the interannual variability associated with ENSO is slightly stronger north of 34°S, the variability associated with the Pacific decadal oscillation (PDO) and/or the interdecadal Pacific oscillation (IPO) index shows similar patterns in both regions. However, variations produced by the IPO forcing seem to be greater in the southern subregion since 1975. The estimations presented here on drought recurrence reveal a generalized increase in dry extremes since the 1950s. These findings suggest that the northern MA is more vulnerable to changes in hydrology and climate than the southern MA.
Fil: González Reyes, Álvaro. Universidad Austral de Chile; Chile
Fil: McPhee, James. Universidad de Chile; Chile
Fil: Christie, Duncan A.. Universidad de Chile; Chile. Universidad Austral de Chile; Chile
Fil: Quesne, Carlos Le. Universidad Austral de Chile; Chile
Fil: Szejner, Paul. University of Arizona; Estados Unidos
Fil: Masiokas, Mariano Hugo. 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: Villalba, Ricardo. 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: Muñoz, Ariel A.. Pontificia Universidad Católica de Valparaíso; Chile
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
description In the Mediterranean Andes region (MA; 30°-37°S), the main rivers are largely fed by melting snowpack and provide freshwater to around 10 million people on both sides of the Andes Mountains. Water resources in the MA are under pressure because of the extensive development of industrial agriculture and mining activities. This pressure is increasing as the region faces one of its worst recorded droughts. Previous studies have pointed to El Niño-Southern Oscillation (ENSO) as the main climatic force impacting the MA. However, the role of decadal and multidecadal climate variability, their spatial patterns, and the recurrence of long-term droughts remains poorly studied. In an attempt to better understand these factors, spatial and temporal patterns of hydroclimatic variability are analyzed using an extensive database of streamflow, precipitation, and snowpack covering the period between 1910 and 2011. These analyses are based on the combination of correlation, principal components, and kernel estimation techniques. Despite a general common pattern across the MA, the results presented here identify two hydroclimatic subregions, located north and south of 34°S. While the interannual variability associated with ENSO is slightly stronger north of 34°S, the variability associated with the Pacific decadal oscillation (PDO) and/or the interdecadal Pacific oscillation (IPO) index shows similar patterns in both regions. However, variations produced by the IPO forcing seem to be greater in the southern subregion since 1975. The estimations presented here on drought recurrence reveal a generalized increase in dry extremes since the 1950s. These findings suggest that the northern MA is more vulnerable to changes in hydrology and climate than the southern MA.
publishDate 2017
dc.date.none.fl_str_mv 2017-07
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/11336/60263
González Reyes, Álvaro; McPhee, James; Christie, Duncan A.; Quesne, Carlos Le; Szejner, Paul; et al.; Spatiotemporal variations in hydroclimate across the Mediterranean Andes (30°-37°S) since the early twentieth century; American Meteorological Society; Journal Of Hydrometeorology; 18; 7; 7-2017; 1929-1942
1525-755X
CONICET Digital
CONICET
url http://hdl.handle.net/11336/60263
identifier_str_mv González Reyes, Álvaro; McPhee, James; Christie, Duncan A.; Quesne, Carlos Le; Szejner, Paul; et al.; Spatiotemporal variations in hydroclimate across the Mediterranean Andes (30°-37°S) since the early twentieth century; American Meteorological Society; Journal Of Hydrometeorology; 18; 7; 7-2017; 1929-1942
1525-755X
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1175/JHM-D-16-0004.1
info:eu-repo/semantics/altIdentifier/url/https://journals.ametsoc.org/doi/10.1175/JHM-D-16-0004.1
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 American Meteorological Society
publisher.none.fl_str_mv American Meteorological Society
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 13.13397

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