Hydroclimatic record from an Altiplano cushion peatland (24˚S) indicates large-scale reorganisation of atmospheric circulation for the late Holocene
- Autores
- Lücke, Andreas; Kock, Sebastian T.; Wissel, Holger; Kulemeyer, Julio José; Lupo, Liliana Concepcion; Schäbitz, Frank; Schittek, Karsten
- Año de publicación
- 2022
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- The hydroclimate of South America is characterized by the South American summer monsoon (SASM), a tropical atmospheric circulation that induces a summer precipitation regime, and the Southern Hemisphere Westerlies (SHW), an extratropical atmospheric circulation that induces a winter precipitation regime. Stretched between these two systems is a NW-SE-oriented region dominated by descending air masses, resulting in the South American subtropical dry zone (SASDZ), also known as the arid diagonal. We investigated the Cerro Tuzgle cushion peatland (CTP) located on the Argentine Altiplano, north of the present-day SASDZ. Previous work revealed that the CTP was consistently in the SASM regime during the last 2900 cal yr BP. Here, we extend the CTP record to the middle Holocene covering the last 7200 cal yr BP to gain further knowledge of the Holocene development of the SASM and potential modulations of the SASDZ. The prominent feature of the entire record is a distinct and lasting transition centred around 3100 cal yr BP characterized by declining minerogenic content, increasing organic carbon content, rising stable carbon isotope values of organic matter and cellulose, and increasing stable oxygen isotope values of cellulose. We interpret this specific proxy pattern as a hydroclimatic transition towards less arid conditions at the CTP after 3100 cal yr BP. The transition corresponds with the end of the continuous Holocene strengthening of the SASM between 3500 cal yr BP and 3000 cal yr BP indicated by proxy records from north and east of the CTP. The CTP does not reflect this strengthening of the SASM and rather exhibits a threshold response indicating the effective establishment of the SASM summer precipitation regime at 24˚S. This suggests that moisture supply during a more arid middle Holocene was provided by isotopically depleted precipitation, while moisture supply after the transition originated from isotopically enriched SASM summer precipitation. Concurrent hydroclimatic changes in the SHW winter precipitation regime south of the SASDZ are documented in a distinct lake level rise of Laguna Aculeo (33˚50´S) around 3200 cal yr BP. These coinciding hydrological changes of the SASM and the SHW precipitation regimes indicate larger scale reorganisations of atmospheric circulation components, potentially connected to major modulations of the SASDZ. Thus, our CTP record sheds light on the middle to late Holocene development of the SASM at its southern limit and corroborates connections between the tropical and extratropical hydroclimate of South America.
Fil: Lücke, Andreas. Universitat zu Köln; Alemania
Fil: Kock, Sebastian T.. Universitat zu Köln; Alemania
Fil: Wissel, Holger. Forschungszentrum; Alemania. Universitat zu Köln; Alemania
Fil: Kulemeyer, Julio José. Universidad Nacional de Jujuy. Instituto de Ecorregiones Andinas. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta. Instituto de Ecorregiones Andinas; Argentina
Fil: Lupo, Liliana Concepcion. Universidad Nacional de Jujuy. Instituto de Ecorregiones Andinas. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta. Instituto de Ecorregiones Andinas; Argentina
Fil: Schäbitz, Frank. Universitat zu Köln; Alemania
Fil: Schittek, Karsten. Universitat zu Köln; Alemania - Materia
-
ALTIPLANO
PEATLAND
LATE HOLOCENE
HYDROCLIMATIC RECORD - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/211064
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Hydroclimatic record from an Altiplano cushion peatland (24˚S) indicates large-scale reorganisation of atmospheric circulation for the late HoloceneLücke, AndreasKock, Sebastian T.Wissel, HolgerKulemeyer, Julio JoséLupo, Liliana ConcepcionSchäbitz, FrankSchittek, KarstenALTIPLANOPEATLANDLATE HOLOCENEHYDROCLIMATIC RECORDhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1The hydroclimate of South America is characterized by the South American summer monsoon (SASM), a tropical atmospheric circulation that induces a summer precipitation regime, and the Southern Hemisphere Westerlies (SHW), an extratropical atmospheric circulation that induces a winter precipitation regime. Stretched between these two systems is a NW-SE-oriented region dominated by descending air masses, resulting in the South American subtropical dry zone (SASDZ), also known as the arid diagonal. We investigated the Cerro Tuzgle cushion peatland (CTP) located on the Argentine Altiplano, north of the present-day SASDZ. Previous work revealed that the CTP was consistently in the SASM regime during the last 2900 cal yr BP. Here, we extend the CTP record to the middle Holocene covering the last 7200 cal yr BP to gain further knowledge of the Holocene development of the SASM and potential modulations of the SASDZ. The prominent feature of the entire record is a distinct and lasting transition centred around 3100 cal yr BP characterized by declining minerogenic content, increasing organic carbon content, rising stable carbon isotope values of organic matter and cellulose, and increasing stable oxygen isotope values of cellulose. We interpret this specific proxy pattern as a hydroclimatic transition towards less arid conditions at the CTP after 3100 cal yr BP. The transition corresponds with the end of the continuous Holocene strengthening of the SASM between 3500 cal yr BP and 3000 cal yr BP indicated by proxy records from north and east of the CTP. The CTP does not reflect this strengthening of the SASM and rather exhibits a threshold response indicating the effective establishment of the SASM summer precipitation regime at 24˚S. This suggests that moisture supply during a more arid middle Holocene was provided by isotopically depleted precipitation, while moisture supply after the transition originated from isotopically enriched SASM summer precipitation. Concurrent hydroclimatic changes in the SHW winter precipitation regime south of the SASDZ are documented in a distinct lake level rise of Laguna Aculeo (33˚50´S) around 3200 cal yr BP. These coinciding hydrological changes of the SASM and the SHW precipitation regimes indicate larger scale reorganisations of atmospheric circulation components, potentially connected to major modulations of the SASDZ. Thus, our CTP record sheds light on the middle to late Holocene development of the SASM at its southern limit and corroborates connections between the tropical and extratropical hydroclimate of South America.Fil: Lücke, Andreas. Universitat zu Köln; AlemaniaFil: Kock, Sebastian T.. Universitat zu Köln; AlemaniaFil: Wissel, Holger. Forschungszentrum; Alemania. Universitat zu Köln; AlemaniaFil: Kulemeyer, Julio José. Universidad Nacional de Jujuy. Instituto de Ecorregiones Andinas. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta. Instituto de Ecorregiones Andinas; ArgentinaFil: Lupo, Liliana Concepcion. Universidad Nacional de Jujuy. Instituto de Ecorregiones Andinas. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta. Instituto de Ecorregiones Andinas; ArgentinaFil: Schäbitz, Frank. Universitat zu Köln; AlemaniaFil: Schittek, Karsten. Universitat zu Köln; AlemaniaPublic Library of Science2022-11info: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/11336/211064Lücke, Andreas; Kock, Sebastian T.; Wissel, Holger; Kulemeyer, Julio José; Lupo, Liliana Concepcion; et al.; Hydroclimatic record from an Altiplano cushion peatland (24˚S) indicates large-scale reorganisation of atmospheric circulation for the late Holocene; Public Library of Science; Plos One; 17; 11; 11-2022; 1-261932-6203CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0277027info:eu-repo/semantics/altIdentifier/doi/10.1371/journal.pone.0277027info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:16:24Zoai:ri.conicet.gov.ar:11336/211064instacron: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 10:16:24.411CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Hydroclimatic record from an Altiplano cushion peatland (24˚S) indicates large-scale reorganisation of atmospheric circulation for the late Holocene |
title |
Hydroclimatic record from an Altiplano cushion peatland (24˚S) indicates large-scale reorganisation of atmospheric circulation for the late Holocene |
spellingShingle |
Hydroclimatic record from an Altiplano cushion peatland (24˚S) indicates large-scale reorganisation of atmospheric circulation for the late Holocene Lücke, Andreas ALTIPLANO PEATLAND LATE HOLOCENE HYDROCLIMATIC RECORD |
title_short |
Hydroclimatic record from an Altiplano cushion peatland (24˚S) indicates large-scale reorganisation of atmospheric circulation for the late Holocene |
title_full |
Hydroclimatic record from an Altiplano cushion peatland (24˚S) indicates large-scale reorganisation of atmospheric circulation for the late Holocene |
title_fullStr |
Hydroclimatic record from an Altiplano cushion peatland (24˚S) indicates large-scale reorganisation of atmospheric circulation for the late Holocene |
title_full_unstemmed |
Hydroclimatic record from an Altiplano cushion peatland (24˚S) indicates large-scale reorganisation of atmospheric circulation for the late Holocene |
title_sort |
Hydroclimatic record from an Altiplano cushion peatland (24˚S) indicates large-scale reorganisation of atmospheric circulation for the late Holocene |
dc.creator.none.fl_str_mv |
Lücke, Andreas Kock, Sebastian T. Wissel, Holger Kulemeyer, Julio José Lupo, Liliana Concepcion Schäbitz, Frank Schittek, Karsten |
author |
Lücke, Andreas |
author_facet |
Lücke, Andreas Kock, Sebastian T. Wissel, Holger Kulemeyer, Julio José Lupo, Liliana Concepcion Schäbitz, Frank Schittek, Karsten |
author_role |
author |
author2 |
Kock, Sebastian T. Wissel, Holger Kulemeyer, Julio José Lupo, Liliana Concepcion Schäbitz, Frank Schittek, Karsten |
author2_role |
author author author author author author |
dc.subject.none.fl_str_mv |
ALTIPLANO PEATLAND LATE HOLOCENE HYDROCLIMATIC RECORD |
topic |
ALTIPLANO PEATLAND LATE HOLOCENE HYDROCLIMATIC RECORD |
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 hydroclimate of South America is characterized by the South American summer monsoon (SASM), a tropical atmospheric circulation that induces a summer precipitation regime, and the Southern Hemisphere Westerlies (SHW), an extratropical atmospheric circulation that induces a winter precipitation regime. Stretched between these two systems is a NW-SE-oriented region dominated by descending air masses, resulting in the South American subtropical dry zone (SASDZ), also known as the arid diagonal. We investigated the Cerro Tuzgle cushion peatland (CTP) located on the Argentine Altiplano, north of the present-day SASDZ. Previous work revealed that the CTP was consistently in the SASM regime during the last 2900 cal yr BP. Here, we extend the CTP record to the middle Holocene covering the last 7200 cal yr BP to gain further knowledge of the Holocene development of the SASM and potential modulations of the SASDZ. The prominent feature of the entire record is a distinct and lasting transition centred around 3100 cal yr BP characterized by declining minerogenic content, increasing organic carbon content, rising stable carbon isotope values of organic matter and cellulose, and increasing stable oxygen isotope values of cellulose. We interpret this specific proxy pattern as a hydroclimatic transition towards less arid conditions at the CTP after 3100 cal yr BP. The transition corresponds with the end of the continuous Holocene strengthening of the SASM between 3500 cal yr BP and 3000 cal yr BP indicated by proxy records from north and east of the CTP. The CTP does not reflect this strengthening of the SASM and rather exhibits a threshold response indicating the effective establishment of the SASM summer precipitation regime at 24˚S. This suggests that moisture supply during a more arid middle Holocene was provided by isotopically depleted precipitation, while moisture supply after the transition originated from isotopically enriched SASM summer precipitation. Concurrent hydroclimatic changes in the SHW winter precipitation regime south of the SASDZ are documented in a distinct lake level rise of Laguna Aculeo (33˚50´S) around 3200 cal yr BP. These coinciding hydrological changes of the SASM and the SHW precipitation regimes indicate larger scale reorganisations of atmospheric circulation components, potentially connected to major modulations of the SASDZ. Thus, our CTP record sheds light on the middle to late Holocene development of the SASM at its southern limit and corroborates connections between the tropical and extratropical hydroclimate of South America. Fil: Lücke, Andreas. Universitat zu Köln; Alemania Fil: Kock, Sebastian T.. Universitat zu Köln; Alemania Fil: Wissel, Holger. Forschungszentrum; Alemania. Universitat zu Köln; Alemania Fil: Kulemeyer, Julio José. Universidad Nacional de Jujuy. Instituto de Ecorregiones Andinas. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta. Instituto de Ecorregiones Andinas; Argentina Fil: Lupo, Liliana Concepcion. Universidad Nacional de Jujuy. Instituto de Ecorregiones Andinas. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta. Instituto de Ecorregiones Andinas; Argentina Fil: Schäbitz, Frank. Universitat zu Köln; Alemania Fil: Schittek, Karsten. Universitat zu Köln; Alemania |
description |
The hydroclimate of South America is characterized by the South American summer monsoon (SASM), a tropical atmospheric circulation that induces a summer precipitation regime, and the Southern Hemisphere Westerlies (SHW), an extratropical atmospheric circulation that induces a winter precipitation regime. Stretched between these two systems is a NW-SE-oriented region dominated by descending air masses, resulting in the South American subtropical dry zone (SASDZ), also known as the arid diagonal. We investigated the Cerro Tuzgle cushion peatland (CTP) located on the Argentine Altiplano, north of the present-day SASDZ. Previous work revealed that the CTP was consistently in the SASM regime during the last 2900 cal yr BP. Here, we extend the CTP record to the middle Holocene covering the last 7200 cal yr BP to gain further knowledge of the Holocene development of the SASM and potential modulations of the SASDZ. The prominent feature of the entire record is a distinct and lasting transition centred around 3100 cal yr BP characterized by declining minerogenic content, increasing organic carbon content, rising stable carbon isotope values of organic matter and cellulose, and increasing stable oxygen isotope values of cellulose. We interpret this specific proxy pattern as a hydroclimatic transition towards less arid conditions at the CTP after 3100 cal yr BP. The transition corresponds with the end of the continuous Holocene strengthening of the SASM between 3500 cal yr BP and 3000 cal yr BP indicated by proxy records from north and east of the CTP. The CTP does not reflect this strengthening of the SASM and rather exhibits a threshold response indicating the effective establishment of the SASM summer precipitation regime at 24˚S. This suggests that moisture supply during a more arid middle Holocene was provided by isotopically depleted precipitation, while moisture supply after the transition originated from isotopically enriched SASM summer precipitation. Concurrent hydroclimatic changes in the SHW winter precipitation regime south of the SASDZ are documented in a distinct lake level rise of Laguna Aculeo (33˚50´S) around 3200 cal yr BP. These coinciding hydrological changes of the SASM and the SHW precipitation regimes indicate larger scale reorganisations of atmospheric circulation components, potentially connected to major modulations of the SASDZ. Thus, our CTP record sheds light on the middle to late Holocene development of the SASM at its southern limit and corroborates connections between the tropical and extratropical hydroclimate of South America. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-11 |
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/11336/211064 Lücke, Andreas; Kock, Sebastian T.; Wissel, Holger; Kulemeyer, Julio José; Lupo, Liliana Concepcion; et al.; Hydroclimatic record from an Altiplano cushion peatland (24˚S) indicates large-scale reorganisation of atmospheric circulation for the late Holocene; Public Library of Science; Plos One; 17; 11; 11-2022; 1-26 1932-6203 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/211064 |
identifier_str_mv |
Lücke, Andreas; Kock, Sebastian T.; Wissel, Holger; Kulemeyer, Julio José; Lupo, Liliana Concepcion; et al.; Hydroclimatic record from an Altiplano cushion peatland (24˚S) indicates large-scale reorganisation of atmospheric circulation for the late Holocene; Public Library of Science; Plos One; 17; 11; 11-2022; 1-26 1932-6203 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://journals.plos.org/plosone/article?id=10.1371/journal.pone.0277027 info:eu-repo/semantics/altIdentifier/doi/10.1371/journal.pone.0277027 |
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 |
Public Library of Science |
publisher.none.fl_str_mv |
Public Library of Science |
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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1844614108433874944 |
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13.070432 |