Past Summer Temperatures Inferred From Dendrochronological Records of Fitzroya cupressoides on the Eastern Slope of the Northern Patagonian Andes

Autores
Lavergne, Aliénor; Daux, Valérie; Pierre, Monique; Stievenard, Michel; Srur, Ana Marina; Villalba, Ricardo
Año de publicación
2018
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Estimating summer temperature fluctuations over long timescales in southern South America is essential for better understanding the past climate variations in the Southern Hemisphere. Here we developed robust 212 year long basal area increment (BAI) and δ13C chronologies from living temperature-sensitive Fitzroya cupressoides on the eastern slope of the northern Patagonian Andes (41°S). After removing the increasing trend from the growth records likely due to the CO2 fertilization effect, we tested the potential to reconstruct past summer temperature variations using BAI and δ13C as predictors. The reconstruction based on δ13C records has the strongest predictive skills and explains as much as 62% of the total variance in instrumental summer temperature (n = 81, p < 0.001). The temperature signal recorded in tree-ring growth is not substantially different to that present in δ13C and consequently does not provide additional information to improve the regression models. Our δ13C-based reconstruction shows cold summer temperatures in the second part of the 19th century and in the mid-20th century followed by a warmer period. Notably, the 20th and the early 21st centuries were warmer (+0.6°C) than the 19th century. Reconstructed summer temperature variations are modulated by low-latitude (El Niño–Southern Oscillation) and high-latitude (Southern Annular Mode) climate forcings. Our reconstruction based on δ13C agrees well with previous ring width based temperature reconstructions in the region and comparatively enhances the low-frequency variations in the records. The present study provides the first reconstruction of summer temperature in South America south of 40°S for the period 1800–2011 entirely based on isotopic records.
Fil: Lavergne, Aliénor. Imperial College London; Reino Unido. Laboratoire des Sciences du Climat et de l’Environnement; Francia
Fil: Daux, Valérie. Laboratoire des Sciences du Climat et de l’Environnement; Francia
Fil: Pierre, Monique. Laboratoire des Sciences du Climat et de l’Environnement; Francia
Fil: Stievenard, Michel. Laboratoire des Sciences du Climat et de l’Environnement; Francia
Fil: Srur, Ana Marina. 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
Materia
BASAL AREA INCREMENT
CARBON ISOTOPES
FITZROYA CUPRESSOIDES
SOUTHERN SOUTH AMERICA
SUMMER TEMPERATURE RECONSTRUCTION
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:11336/86752
Acceder
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network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Past Summer Temperatures Inferred From Dendrochronological Records of Fitzroya cupressoides on the Eastern Slope of the Northern Patagonian AndesLavergne, AliénorDaux, ValériePierre, MoniqueStievenard, MichelSrur, Ana MarinaVillalba, RicardoBASAL AREA INCREMENTCARBON ISOTOPESFITZROYA CUPRESSOIDESSOUTHERN SOUTH AMERICASUMMER TEMPERATURE RECONSTRUCTIONhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Estimating summer temperature fluctuations over long timescales in southern South America is essential for better understanding the past climate variations in the Southern Hemisphere. Here we developed robust 212 year long basal area increment (BAI) and δ13C chronologies from living temperature-sensitive Fitzroya cupressoides on the eastern slope of the northern Patagonian Andes (41°S). After removing the increasing trend from the growth records likely due to the CO2 fertilization effect, we tested the potential to reconstruct past summer temperature variations using BAI and δ13C as predictors. The reconstruction based on δ13C records has the strongest predictive skills and explains as much as 62% of the total variance in instrumental summer temperature (n = 81, p < 0.001). The temperature signal recorded in tree-ring growth is not substantially different to that present in δ13C and consequently does not provide additional information to improve the regression models. Our δ13C-based reconstruction shows cold summer temperatures in the second part of the 19th century and in the mid-20th century followed by a warmer period. Notably, the 20th and the early 21st centuries were warmer (+0.6°C) than the 19th century. Reconstructed summer temperature variations are modulated by low-latitude (El Niño–Southern Oscillation) and high-latitude (Southern Annular Mode) climate forcings. Our reconstruction based on δ13C agrees well with previous ring width based temperature reconstructions in the region and comparatively enhances the low-frequency variations in the records. The present study provides the first reconstruction of summer temperature in South America south of 40°S for the period 1800–2011 entirely based on isotopic records.Fil: Lavergne, Aliénor. Imperial College London; Reino Unido. Laboratoire des Sciences du Climat et de l’Environnement; FranciaFil: Daux, Valérie. Laboratoire des Sciences du Climat et de l’Environnement; FranciaFil: Pierre, Monique. Laboratoire des Sciences du Climat et de l’Environnement; FranciaFil: Stievenard, Michel. Laboratoire des Sciences du Climat et de l’Environnement; FranciaFil: Srur, Ana Marina. 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; ArgentinaBlackwell Publishing2018-01info: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/11336/86752Lavergne, Aliénor; Daux, Valérie; Pierre, Monique; Stievenard, Michel; Srur, Ana Marina; et al.; Past Summer Temperatures Inferred From Dendrochronological Records of Fitzroya cupressoides on the Eastern Slope of the Northern Patagonian Andes; Blackwell Publishing; Journal of Geophysical Research: Biogeosciences; 123; 1; 1-2018; 32-452169-8961CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1002/2017JG003989info:eu-repo/semantics/altIdentifier/url/https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1002/2017JG003989info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:37:58Zoai:ri.conicet.gov.ar:11336/86752instacron: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 09:37:58.803CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Past Summer Temperatures Inferred From Dendrochronological Records of Fitzroya cupressoides on the Eastern Slope of the Northern Patagonian Andes
title Past Summer Temperatures Inferred From Dendrochronological Records of Fitzroya cupressoides on the Eastern Slope of the Northern Patagonian Andes
spellingShingle Past Summer Temperatures Inferred From Dendrochronological Records of Fitzroya cupressoides on the Eastern Slope of the Northern Patagonian Andes
Lavergne, Aliénor
BASAL AREA INCREMENT
CARBON ISOTOPES
FITZROYA CUPRESSOIDES
SOUTHERN SOUTH AMERICA
SUMMER TEMPERATURE RECONSTRUCTION
title_short Past Summer Temperatures Inferred From Dendrochronological Records of Fitzroya cupressoides on the Eastern Slope of the Northern Patagonian Andes
title_full Past Summer Temperatures Inferred From Dendrochronological Records of Fitzroya cupressoides on the Eastern Slope of the Northern Patagonian Andes
title_fullStr Past Summer Temperatures Inferred From Dendrochronological Records of Fitzroya cupressoides on the Eastern Slope of the Northern Patagonian Andes
title_full_unstemmed Past Summer Temperatures Inferred From Dendrochronological Records of Fitzroya cupressoides on the Eastern Slope of the Northern Patagonian Andes
title_sort Past Summer Temperatures Inferred From Dendrochronological Records of Fitzroya cupressoides on the Eastern Slope of the Northern Patagonian Andes
dc.creator.none.fl_str_mv Lavergne, Aliénor
Daux, Valérie
Pierre, Monique
Stievenard, Michel
Srur, Ana Marina
Villalba, Ricardo
author Lavergne, Aliénor
author_facet Lavergne, Aliénor
Daux, Valérie
Pierre, Monique
Stievenard, Michel
Srur, Ana Marina
Villalba, Ricardo
author_role author
author2 Daux, Valérie
Pierre, Monique
Stievenard, Michel
Srur, Ana Marina
Villalba, Ricardo
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv BASAL AREA INCREMENT
CARBON ISOTOPES
FITZROYA CUPRESSOIDES
SOUTHERN SOUTH AMERICA
SUMMER TEMPERATURE RECONSTRUCTION
topic BASAL AREA INCREMENT
CARBON ISOTOPES
FITZROYA CUPRESSOIDES
SOUTHERN SOUTH AMERICA
SUMMER TEMPERATURE RECONSTRUCTION
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Estimating summer temperature fluctuations over long timescales in southern South America is essential for better understanding the past climate variations in the Southern Hemisphere. Here we developed robust 212 year long basal area increment (BAI) and δ13C chronologies from living temperature-sensitive Fitzroya cupressoides on the eastern slope of the northern Patagonian Andes (41°S). After removing the increasing trend from the growth records likely due to the CO2 fertilization effect, we tested the potential to reconstruct past summer temperature variations using BAI and δ13C as predictors. The reconstruction based on δ13C records has the strongest predictive skills and explains as much as 62% of the total variance in instrumental summer temperature (n = 81, p < 0.001). The temperature signal recorded in tree-ring growth is not substantially different to that present in δ13C and consequently does not provide additional information to improve the regression models. Our δ13C-based reconstruction shows cold summer temperatures in the second part of the 19th century and in the mid-20th century followed by a warmer period. Notably, the 20th and the early 21st centuries were warmer (+0.6°C) than the 19th century. Reconstructed summer temperature variations are modulated by low-latitude (El Niño–Southern Oscillation) and high-latitude (Southern Annular Mode) climate forcings. Our reconstruction based on δ13C agrees well with previous ring width based temperature reconstructions in the region and comparatively enhances the low-frequency variations in the records. The present study provides the first reconstruction of summer temperature in South America south of 40°S for the period 1800–2011 entirely based on isotopic records.
Fil: Lavergne, Aliénor. Imperial College London; Reino Unido. Laboratoire des Sciences du Climat et de l’Environnement; Francia
Fil: Daux, Valérie. Laboratoire des Sciences du Climat et de l’Environnement; Francia
Fil: Pierre, Monique. Laboratoire des Sciences du Climat et de l’Environnement; Francia
Fil: Stievenard, Michel. Laboratoire des Sciences du Climat et de l’Environnement; Francia
Fil: Srur, Ana Marina. 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
description Estimating summer temperature fluctuations over long timescales in southern South America is essential for better understanding the past climate variations in the Southern Hemisphere. Here we developed robust 212 year long basal area increment (BAI) and δ13C chronologies from living temperature-sensitive Fitzroya cupressoides on the eastern slope of the northern Patagonian Andes (41°S). After removing the increasing trend from the growth records likely due to the CO2 fertilization effect, we tested the potential to reconstruct past summer temperature variations using BAI and δ13C as predictors. The reconstruction based on δ13C records has the strongest predictive skills and explains as much as 62% of the total variance in instrumental summer temperature (n = 81, p < 0.001). The temperature signal recorded in tree-ring growth is not substantially different to that present in δ13C and consequently does not provide additional information to improve the regression models. Our δ13C-based reconstruction shows cold summer temperatures in the second part of the 19th century and in the mid-20th century followed by a warmer period. Notably, the 20th and the early 21st centuries were warmer (+0.6°C) than the 19th century. Reconstructed summer temperature variations are modulated by low-latitude (El Niño–Southern Oscillation) and high-latitude (Southern Annular Mode) climate forcings. Our reconstruction based on δ13C agrees well with previous ring width based temperature reconstructions in the region and comparatively enhances the low-frequency variations in the records. The present study provides the first reconstruction of summer temperature in South America south of 40°S for the period 1800–2011 entirely based on isotopic records.
publishDate 2018
dc.date.none.fl_str_mv 2018-01
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/11336/86752
Lavergne, Aliénor; Daux, Valérie; Pierre, Monique; Stievenard, Michel; Srur, Ana Marina; et al.; Past Summer Temperatures Inferred From Dendrochronological Records of Fitzroya cupressoides on the Eastern Slope of the Northern Patagonian Andes; Blackwell Publishing; Journal of Geophysical Research: Biogeosciences; 123; 1; 1-2018; 32-45
2169-8961
CONICET Digital
CONICET
url http://hdl.handle.net/11336/86752
identifier_str_mv Lavergne, Aliénor; Daux, Valérie; Pierre, Monique; Stievenard, Michel; Srur, Ana Marina; et al.; Past Summer Temperatures Inferred From Dendrochronological Records of Fitzroya cupressoides on the Eastern Slope of the Northern Patagonian Andes; Blackwell Publishing; Journal of Geophysical Research: Biogeosciences; 123; 1; 1-2018; 32-45
2169-8961
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1002/2017JG003989
info:eu-repo/semantics/altIdentifier/url/https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1002/2017JG003989
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
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 13.070432

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