Two centuries of hydroclimatic variability reconstructed from tree-ring records over the Amazonian Andes of Peru

Autores
Humanes Fuente, Victor; Ferrero, Maria Eugenia; Muñoz, Ariel A.; González Reyes, Álvaro; Requena Rojas, Edilson Jimmy; Barichivich, J.; Inga, J.G.; Layme Huaman, Eva Trinidad
Año de publicación
2020
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Almost half of the tributaries of the Amazon River originate in the tropical Andes and support large populations in mountain regions and downstream areas. However, it is difficult to assess hydroclimatic conditions or to evaluate future scenarios due to the scarcity of long, high-quality instrumental records. Data from the Global Precipitation Climatology Project (GPCP) provide a complete record since 1979 and offer a good representation of rainfall over the tropical Andes. Longer records are needed to improve our understanding of rainfall variability and summer monsoon behavior at various scales. We developed the first annually resolved precipitation reconstruction for the tropical Andes in Peru, based on tree-ring chronologies of Cedrela and Juglans species. The annual (November–October) reconstruction extends the short instrumental records back to 1817, explaining 68% of the total variance of precipitation over the 1979–2007 calibration period. The reconstruction reveals the well-documented influence of El Niño-Southern Oscillation (ENSO) on Amazon Rainfall at interannual scales (~19% of total variance) and significant multidecadal variability with alternating periods of about 40 years (~13% of rainfall variability) related to the Atlantic Multidecadal Oscillation (AMO). Both oscillatory modes can explain dry and humid periods observed within the reconstruction and are likely associated with the negative trends of rainfall in the short instrumental records and the increased drought recurrence in recent decades. Our results show that montane tropical tree rings can be used to reconstruct precipitation with exceptionally high fidelity, characterize the interannual to multidecadal variability, and identify remote forcings in the hydroclimate over the Andean Amazon Basin of Peru.
Fil: Humanes Fuente, Victor. Pontificia Universidad Católica de Valparaíso; Chile
Fil: Ferrero, Maria Eugenia. 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: González Reyes, Álvaro. Universidad Mayor; Chile
Fil: Requena Rojas, Edilson Jimmy. Universidad Austral de Chile; Chile
Fil: Barichivich, J.. Universidad Austral de Chile; Chile. Laboratoire des Sciences du Climat et de l'Environnement; Francia
Fil: Inga, J.G.. Universidad Continental; Perú
Fil: Layme Huaman, Eva Trinidad. Instituto Nacional de Innovación Agraria; Argentina
Materia
AMAZONIAN MONTANE FORESTS
PRECIPITATION RECONSTRUCTION
SAMS
SOUTH AMERICA
TREE RINGS
TROPICAL ANDES
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:11336/143108
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/143108
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Two centuries of hydroclimatic variability reconstructed from tree-ring records over the Amazonian Andes of PeruHumanes Fuente, VictorFerrero, Maria EugeniaMuñoz, Ariel A.González Reyes, ÁlvaroRequena Rojas, Edilson JimmyBarichivich, J.Inga, J.G.Layme Huaman, Eva TrinidadAMAZONIAN MONTANE FORESTSPRECIPITATION RECONSTRUCTIONSAMSSOUTH AMERICATREE RINGSTROPICAL ANDEShttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Almost half of the tributaries of the Amazon River originate in the tropical Andes and support large populations in mountain regions and downstream areas. However, it is difficult to assess hydroclimatic conditions or to evaluate future scenarios due to the scarcity of long, high-quality instrumental records. Data from the Global Precipitation Climatology Project (GPCP) provide a complete record since 1979 and offer a good representation of rainfall over the tropical Andes. Longer records are needed to improve our understanding of rainfall variability and summer monsoon behavior at various scales. We developed the first annually resolved precipitation reconstruction for the tropical Andes in Peru, based on tree-ring chronologies of Cedrela and Juglans species. The annual (November–October) reconstruction extends the short instrumental records back to 1817, explaining 68% of the total variance of precipitation over the 1979–2007 calibration period. The reconstruction reveals the well-documented influence of El Niño-Southern Oscillation (ENSO) on Amazon Rainfall at interannual scales (~19% of total variance) and significant multidecadal variability with alternating periods of about 40 years (~13% of rainfall variability) related to the Atlantic Multidecadal Oscillation (AMO). Both oscillatory modes can explain dry and humid periods observed within the reconstruction and are likely associated with the negative trends of rainfall in the short instrumental records and the increased drought recurrence in recent decades. Our results show that montane tropical tree rings can be used to reconstruct precipitation with exceptionally high fidelity, characterize the interannual to multidecadal variability, and identify remote forcings in the hydroclimate over the Andean Amazon Basin of Peru.Fil: Humanes Fuente, Victor. Pontificia Universidad Católica de Valparaíso; ChileFil: Ferrero, Maria Eugenia. 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: González Reyes, Álvaro. Universidad Mayor; ChileFil: Requena Rojas, Edilson Jimmy. Universidad Austral de Chile; ChileFil: Barichivich, J.. Universidad Austral de Chile; Chile. Laboratoire des Sciences du Climat et de l'Environnement; FranciaFil: Inga, J.G.. Universidad Continental; PerúFil: Layme Huaman, Eva Trinidad. Instituto Nacional de Innovación Agraria; ArgentinaBlackwell Publishing2020-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/143108Humanes Fuente, Victor; Ferrero, Maria Eugenia; Muñoz, Ariel A.; González Reyes, Álvaro; Requena Rojas, Edilson Jimmy; et al.; Two centuries of hydroclimatic variability reconstructed from tree-ring records over the Amazonian Andes of Peru; Blackwell Publishing; Journal of Geophysical Research: Atmospheres; 125; 18; 9-2020; 1-292156-22022169-8996CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/2020JD032565info:eu-repo/semantics/altIdentifier/doi/10.1029/2020JD032565info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-10T13:12:19Zoai:ri.conicet.gov.ar:11336/143108instacron: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:34982025-09-10 13:12:19.807CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Two centuries of hydroclimatic variability reconstructed from tree-ring records over the Amazonian Andes of Peru
title Two centuries of hydroclimatic variability reconstructed from tree-ring records over the Amazonian Andes of Peru
spellingShingle Two centuries of hydroclimatic variability reconstructed from tree-ring records over the Amazonian Andes of Peru
Humanes Fuente, Victor
AMAZONIAN MONTANE FORESTS
PRECIPITATION RECONSTRUCTION
SAMS
SOUTH AMERICA
TREE RINGS
TROPICAL ANDES
title_short Two centuries of hydroclimatic variability reconstructed from tree-ring records over the Amazonian Andes of Peru
title_full Two centuries of hydroclimatic variability reconstructed from tree-ring records over the Amazonian Andes of Peru
title_fullStr Two centuries of hydroclimatic variability reconstructed from tree-ring records over the Amazonian Andes of Peru
title_full_unstemmed Two centuries of hydroclimatic variability reconstructed from tree-ring records over the Amazonian Andes of Peru
title_sort Two centuries of hydroclimatic variability reconstructed from tree-ring records over the Amazonian Andes of Peru
dc.creator.none.fl_str_mv Humanes Fuente, Victor
Ferrero, Maria Eugenia
Muñoz, Ariel A.
González Reyes, Álvaro
Requena Rojas, Edilson Jimmy
Barichivich, J.
Inga, J.G.
Layme Huaman, Eva Trinidad
author Humanes Fuente, Victor
author_facet Humanes Fuente, Victor
Ferrero, Maria Eugenia
Muñoz, Ariel A.
González Reyes, Álvaro
Requena Rojas, Edilson Jimmy
Barichivich, J.
Inga, J.G.
Layme Huaman, Eva Trinidad
author_role author
author2 Ferrero, Maria Eugenia
Muñoz, Ariel A.
González Reyes, Álvaro
Requena Rojas, Edilson Jimmy
Barichivich, J.
Inga, J.G.
Layme Huaman, Eva Trinidad
author2_role author
author
author
author
author
author
author
dc.subject.none.fl_str_mv AMAZONIAN MONTANE FORESTS
PRECIPITATION RECONSTRUCTION
SAMS
SOUTH AMERICA
TREE RINGS
TROPICAL ANDES
topic AMAZONIAN MONTANE FORESTS
PRECIPITATION RECONSTRUCTION
SAMS
SOUTH AMERICA
TREE RINGS
TROPICAL ANDES
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Almost half of the tributaries of the Amazon River originate in the tropical Andes and support large populations in mountain regions and downstream areas. However, it is difficult to assess hydroclimatic conditions or to evaluate future scenarios due to the scarcity of long, high-quality instrumental records. Data from the Global Precipitation Climatology Project (GPCP) provide a complete record since 1979 and offer a good representation of rainfall over the tropical Andes. Longer records are needed to improve our understanding of rainfall variability and summer monsoon behavior at various scales. We developed the first annually resolved precipitation reconstruction for the tropical Andes in Peru, based on tree-ring chronologies of Cedrela and Juglans species. The annual (November–October) reconstruction extends the short instrumental records back to 1817, explaining 68% of the total variance of precipitation over the 1979–2007 calibration period. The reconstruction reveals the well-documented influence of El Niño-Southern Oscillation (ENSO) on Amazon Rainfall at interannual scales (~19% of total variance) and significant multidecadal variability with alternating periods of about 40 years (~13% of rainfall variability) related to the Atlantic Multidecadal Oscillation (AMO). Both oscillatory modes can explain dry and humid periods observed within the reconstruction and are likely associated with the negative trends of rainfall in the short instrumental records and the increased drought recurrence in recent decades. Our results show that montane tropical tree rings can be used to reconstruct precipitation with exceptionally high fidelity, characterize the interannual to multidecadal variability, and identify remote forcings in the hydroclimate over the Andean Amazon Basin of Peru.
Fil: Humanes Fuente, Victor. Pontificia Universidad Católica de Valparaíso; Chile
Fil: Ferrero, Maria Eugenia. 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: González Reyes, Álvaro. Universidad Mayor; Chile
Fil: Requena Rojas, Edilson Jimmy. Universidad Austral de Chile; Chile
Fil: Barichivich, J.. Universidad Austral de Chile; Chile. Laboratoire des Sciences du Climat et de l'Environnement; Francia
Fil: Inga, J.G.. Universidad Continental; Perú
Fil: Layme Huaman, Eva Trinidad. Instituto Nacional de Innovación Agraria; Argentina
description Almost half of the tributaries of the Amazon River originate in the tropical Andes and support large populations in mountain regions and downstream areas. However, it is difficult to assess hydroclimatic conditions or to evaluate future scenarios due to the scarcity of long, high-quality instrumental records. Data from the Global Precipitation Climatology Project (GPCP) provide a complete record since 1979 and offer a good representation of rainfall over the tropical Andes. Longer records are needed to improve our understanding of rainfall variability and summer monsoon behavior at various scales. We developed the first annually resolved precipitation reconstruction for the tropical Andes in Peru, based on tree-ring chronologies of Cedrela and Juglans species. The annual (November–October) reconstruction extends the short instrumental records back to 1817, explaining 68% of the total variance of precipitation over the 1979–2007 calibration period. The reconstruction reveals the well-documented influence of El Niño-Southern Oscillation (ENSO) on Amazon Rainfall at interannual scales (~19% of total variance) and significant multidecadal variability with alternating periods of about 40 years (~13% of rainfall variability) related to the Atlantic Multidecadal Oscillation (AMO). Both oscillatory modes can explain dry and humid periods observed within the reconstruction and are likely associated with the negative trends of rainfall in the short instrumental records and the increased drought recurrence in recent decades. Our results show that montane tropical tree rings can be used to reconstruct precipitation with exceptionally high fidelity, characterize the interannual to multidecadal variability, and identify remote forcings in the hydroclimate over the Andean Amazon Basin of Peru.
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/11336/143108
Humanes Fuente, Victor; Ferrero, Maria Eugenia; Muñoz, Ariel A.; González Reyes, Álvaro; Requena Rojas, Edilson Jimmy; et al.; Two centuries of hydroclimatic variability reconstructed from tree-ring records over the Amazonian Andes of Peru; Blackwell Publishing; Journal of Geophysical Research: Atmospheres; 125; 18; 9-2020; 1-29
2156-2202
2169-8996
CONICET Digital
CONICET
url http://hdl.handle.net/11336/143108
identifier_str_mv Humanes Fuente, Victor; Ferrero, Maria Eugenia; Muñoz, Ariel A.; González Reyes, Álvaro; Requena Rojas, Edilson Jimmy; et al.; Two centuries of hydroclimatic variability reconstructed from tree-ring records over the Amazonian Andes of Peru; Blackwell Publishing; Journal of Geophysical Research: Atmospheres; 125; 18; 9-2020; 1-29
2156-2202
2169-8996
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://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/2020JD032565
info:eu-repo/semantics/altIdentifier/doi/10.1029/2020JD032565
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 Blackwell Publishing
publisher.none.fl_str_mv Blackwell Publishing
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 12.993085

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