Imprints of climate signals in a 204 year δ18O tree-ring record of nothofagus pumilio from Perito Moreno Glacier, Southern Patagonia (50◦S)
A 204 year-long record of δ18 O in tree-ring cellulose of southern beech (Nothofagus pumilio) from a site near Perito Moreno Glacier (50◦ S) in Southern Patagonia was established to assess its potential for a climate reconstruction. The annually resolved oxygen isotope chronology is built out of sev...
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ftconicet:oai:ri.conicet.gov.ar:11336/87129 2023-10-09T21:45:21+02:00 Imprints of climate signals in a 204 year δ18O tree-ring record of nothofagus pumilio from Perito Moreno Glacier, Southern Patagonia (50◦S) Grießinger, Jussi Langhamer, Lukas Schneider, Christoph Saß, Björn Lukas Steger, David Skvarca, Pedro Braun, Matthias H. Meier, Wolfgang J. H. Srur, Ana Marina Hochreuther, Philipp application/pdf http://hdl.handle.net/11336/87129 eng eng Frontiers Research Foundation info:eu-repo/semantics/altIdentifier/url/http://journal.frontiersin.org/article/10.3389/feart.2018.00027/full info:eu-repo/semantics/altIdentifier/doi/10.3389/feart.2018.00027 http://hdl.handle.net/11336/87129 Grießinger, Jussi; Langhamer, Lukas; Schneider, Christoph; Saß, Björn Lukas; Steger, David; et al.; Imprints of climate signals in a 204 year δ18O tree-ring record of nothofagus pumilio from Perito Moreno Glacier, Southern Patagonia (50◦S); Frontiers Research Foundation; Frontiers in Earth Science; 6; 4-2018; 1-17 2296-6463 CONICET Digital CONICET info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ BACKWARD TRAJECTORY MODELING MAIN WEATHER TYPES NOTHOFAGUS PUMILIO PERITO MORENO GLACIER SOUTHERN ANNULAR MODE (SAM) SOUTHERN PATAGONIA TREE-RING Δ18O https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion ftconicet https://doi.org/10.3389/feart.2018.00027 2023-09-24T18:54:16Z A 204 year-long record of δ18 O in tree-ring cellulose of southern beech (Nothofagus pumilio) from a site near Perito Moreno Glacier (50◦ S) in Southern Patagonia was established to assess its potential for a climate reconstruction. The annually resolved oxygen isotope chronology is built out of seven individual tree-ring δ18 O series with a significant mean inter-series correlation (r = 0.61) and is the first of its kind located in Southern America south of 50◦ S. Over a common period from1960 to 2013 of available stationary and high-resolution gridded CRU TS v. 4.01 data, the δ18 O chronology exhibits a strong sensitivity toward hydroclimatic as well as temperature parameters as revealed by correlation analyses. Among these, positive correlations with maximum temperature in the first part of the summer season (CRU rONDJ = 0.51, p < 0.01) and negative correlations with precipitation in the latter half of the vegetation period (CRU rONDJ = −0.54, p < 0.01) show the highest sensitivities. A strong supra-regional influence of the Southern Annular Mode (SAM) is clearly recorded in this chronology as indicated by significant positive correlations during the vegetation period (rONDJ = 0.62, p < 0.01). This indicates that the presented δ18 O-chronology shows great promise to reconstruct the influence and variability of the SAM within the last two centuries in southern South America. The modulation of positive and negative anomalies within this series can be interlinked to changes in moisture source origin as revealed by backward trajectory modeling. Additionally, these anomalies can be directly associated to positive or negative phases of the Antarctic Oscillation Index (AAOI) and therefore the strength of the Westerlies. Aligned by the analysis on the influence of different main weather types on the δ18 Ochronology it is shown that such time-series hold the potential to additionally capture their respective influence and change during the last centuries. Fil: Grießinger, Jussi. Universitat ... Article in Journal/Newspaper Antarc* Antarctic CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) Antarctic The Antarctic Patagonia Moreno ENVELOPE(-62.300,-62.300,-64.083,-64.083) Frontiers in Earth Science 6 |
institution |
Open Polar |
collection |
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) |
op_collection_id |
ftconicet |
language |
English |
topic |
BACKWARD TRAJECTORY MODELING MAIN WEATHER TYPES NOTHOFAGUS PUMILIO PERITO MORENO GLACIER SOUTHERN ANNULAR MODE (SAM) SOUTHERN PATAGONIA TREE-RING Δ18O https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
spellingShingle |
BACKWARD TRAJECTORY MODELING MAIN WEATHER TYPES NOTHOFAGUS PUMILIO PERITO MORENO GLACIER SOUTHERN ANNULAR MODE (SAM) SOUTHERN PATAGONIA TREE-RING Δ18O https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 Grießinger, Jussi Langhamer, Lukas Schneider, Christoph Saß, Björn Lukas Steger, David Skvarca, Pedro Braun, Matthias H. Meier, Wolfgang J. H. Srur, Ana Marina Hochreuther, Philipp Imprints of climate signals in a 204 year δ18O tree-ring record of nothofagus pumilio from Perito Moreno Glacier, Southern Patagonia (50◦S) |
topic_facet |
BACKWARD TRAJECTORY MODELING MAIN WEATHER TYPES NOTHOFAGUS PUMILIO PERITO MORENO GLACIER SOUTHERN ANNULAR MODE (SAM) SOUTHERN PATAGONIA TREE-RING Δ18O https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
description |
A 204 year-long record of δ18 O in tree-ring cellulose of southern beech (Nothofagus pumilio) from a site near Perito Moreno Glacier (50◦ S) in Southern Patagonia was established to assess its potential for a climate reconstruction. The annually resolved oxygen isotope chronology is built out of seven individual tree-ring δ18 O series with a significant mean inter-series correlation (r = 0.61) and is the first of its kind located in Southern America south of 50◦ S. Over a common period from1960 to 2013 of available stationary and high-resolution gridded CRU TS v. 4.01 data, the δ18 O chronology exhibits a strong sensitivity toward hydroclimatic as well as temperature parameters as revealed by correlation analyses. Among these, positive correlations with maximum temperature in the first part of the summer season (CRU rONDJ = 0.51, p < 0.01) and negative correlations with precipitation in the latter half of the vegetation period (CRU rONDJ = −0.54, p < 0.01) show the highest sensitivities. A strong supra-regional influence of the Southern Annular Mode (SAM) is clearly recorded in this chronology as indicated by significant positive correlations during the vegetation period (rONDJ = 0.62, p < 0.01). This indicates that the presented δ18 O-chronology shows great promise to reconstruct the influence and variability of the SAM within the last two centuries in southern South America. The modulation of positive and negative anomalies within this series can be interlinked to changes in moisture source origin as revealed by backward trajectory modeling. Additionally, these anomalies can be directly associated to positive or negative phases of the Antarctic Oscillation Index (AAOI) and therefore the strength of the Westerlies. Aligned by the analysis on the influence of different main weather types on the δ18 Ochronology it is shown that such time-series hold the potential to additionally capture their respective influence and change during the last centuries. Fil: Grießinger, Jussi. Universitat ... |
format |
Article in Journal/Newspaper |
author |
Grießinger, Jussi Langhamer, Lukas Schneider, Christoph Saß, Björn Lukas Steger, David Skvarca, Pedro Braun, Matthias H. Meier, Wolfgang J. H. Srur, Ana Marina Hochreuther, Philipp |
author_facet |
Grießinger, Jussi Langhamer, Lukas Schneider, Christoph Saß, Björn Lukas Steger, David Skvarca, Pedro Braun, Matthias H. Meier, Wolfgang J. H. Srur, Ana Marina Hochreuther, Philipp |
author_sort |
Grießinger, Jussi |
title |
Imprints of climate signals in a 204 year δ18O tree-ring record of nothofagus pumilio from Perito Moreno Glacier, Southern Patagonia (50◦S) |
title_short |
Imprints of climate signals in a 204 year δ18O tree-ring record of nothofagus pumilio from Perito Moreno Glacier, Southern Patagonia (50◦S) |
title_full |
Imprints of climate signals in a 204 year δ18O tree-ring record of nothofagus pumilio from Perito Moreno Glacier, Southern Patagonia (50◦S) |
title_fullStr |
Imprints of climate signals in a 204 year δ18O tree-ring record of nothofagus pumilio from Perito Moreno Glacier, Southern Patagonia (50◦S) |
title_full_unstemmed |
Imprints of climate signals in a 204 year δ18O tree-ring record of nothofagus pumilio from Perito Moreno Glacier, Southern Patagonia (50◦S) |
title_sort |
imprints of climate signals in a 204 year δ18o tree-ring record of nothofagus pumilio from perito moreno glacier, southern patagonia (50◦s) |
publisher |
Frontiers Research Foundation |
url |
http://hdl.handle.net/11336/87129 |
long_lat |
ENVELOPE(-62.300,-62.300,-64.083,-64.083) |
geographic |
Antarctic The Antarctic Patagonia Moreno |
geographic_facet |
Antarctic The Antarctic Patagonia Moreno |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_relation |
info:eu-repo/semantics/altIdentifier/url/http://journal.frontiersin.org/article/10.3389/feart.2018.00027/full info:eu-repo/semantics/altIdentifier/doi/10.3389/feart.2018.00027 http://hdl.handle.net/11336/87129 Grießinger, Jussi; Langhamer, Lukas; Schneider, Christoph; Saß, Björn Lukas; Steger, David; et al.; Imprints of climate signals in a 204 year δ18O tree-ring record of nothofagus pumilio from Perito Moreno Glacier, Southern Patagonia (50◦S); Frontiers Research Foundation; Frontiers in Earth Science; 6; 4-2018; 1-17 2296-6463 CONICET Digital CONICET |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
op_doi |
https://doi.org/10.3389/feart.2018.00027 |
container_title |
Frontiers in Earth Science |
container_volume |
6 |
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1779317895384268800 |