Bayesian multiproxy temperature reconstruction with black spruce ring widths and stable isotopes from the northern Quebec taiga
Northeastern North America has very few millennium-long, high-resolution climate proxy records. However, very recently, a new tree-ring dataset suitable for temperature reconstructions over the last millennium was developed in the northern Quebec taiga. This dataset is composed of one δ18O and six r...
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ftunivquebecat:oai:depositum.uqat.ca:1070 2023-05-15T18:30:32+02:00 Bayesian multiproxy temperature reconstruction with black spruce ring widths and stable isotopes from the northern Quebec taiga Gennaretti, Fabio Huard, David Naulier, Maud Savard, Martine Bégin, Christian Arseneault, Dominique Guiot, Joel 2017-03-01 application/pdf https://depositum.uqat.ca/id/eprint/1070/ https://depositum.uqat.ca/id/eprint/1070/1/gennarettietal_cd_mars2017.pdf https://doi.org/10.1007/s00382-017-3565-5 en eng https://depositum.uqat.ca/id/eprint/1070/1/gennarettietal_cd_mars2017.pdf Gennaretti, Fabio, Huard, David, Naulier, Maud, Savard, Martine, Bégin, Christian, Arseneault, Dominique et Guiot, Joel (2017). Bayesian multiproxy temperature reconstruction with black spruce ring widths and stable isotopes from the northern Quebec taiga. Climate Dynamics , 49 (11-12). p. 4107-4119. doi:10.1007/s00382-017-3565-5 <https://doi.org/10.1007/s00382-017-3565-5> Repéré dans Depositum à https://depositum.uqat.ca/id/eprint/1070 doi:10.1007/s00382-017-3565-5 Carbon isotopes Last millennium Oxygen isotopes Proxy sensitivity Summer temperature Tree-ring Volcanic impact Article Évalué par les pairs 2017 ftunivquebecat https://doi.org/10.1007/s00382-017-3565-5 2022-07-11T11:40:35Z Northeastern North America has very few millennium-long, high-resolution climate proxy records. However, very recently, a new tree-ring dataset suitable for temperature reconstructions over the last millennium was developed in the northern Quebec taiga. This dataset is composed of one δ18O and six ring width chronologies. Until now, these chronologies have only been used in independent temperature reconstructions (from δ18O or ring width) showing some differences. Here, we added to the dataset a δ13C chronology and developed a significantly improved millennium-long multiproxy reconstruction (997–2006 CE) accounting for uncertainties with a Bayesian approach that evaluates the likelihood of each proxy model. We also undertook a methodological sensitivity analysis to assess the different responses of each proxy to abrupt forcings such as strong volcanic eruptions. Ring width showed a larger response to single eruptions and a larger cumulative impact of multiple eruptions during active volcanic periods, δ18O showed intermediate responses, and δ13C was mostly insensitive to volcanic eruptions. We conclude that all reconstructions based on a single proxy can be misleading because of the possible reduced or amplified responses to specific forcing agents. Article in Journal/Newspaper taiga Université du Québec en Abitibi-Témiscamingue (UQAT): Depositum Climate Dynamics 49 11-12 4107 4119 |
institution |
Open Polar |
collection |
Université du Québec en Abitibi-Témiscamingue (UQAT): Depositum |
op_collection_id |
ftunivquebecat |
language |
English |
topic |
Carbon isotopes Last millennium Oxygen isotopes Proxy sensitivity Summer temperature Tree-ring Volcanic impact |
spellingShingle |
Carbon isotopes Last millennium Oxygen isotopes Proxy sensitivity Summer temperature Tree-ring Volcanic impact Gennaretti, Fabio Huard, David Naulier, Maud Savard, Martine Bégin, Christian Arseneault, Dominique Guiot, Joel Bayesian multiproxy temperature reconstruction with black spruce ring widths and stable isotopes from the northern Quebec taiga |
topic_facet |
Carbon isotopes Last millennium Oxygen isotopes Proxy sensitivity Summer temperature Tree-ring Volcanic impact |
description |
Northeastern North America has very few millennium-long, high-resolution climate proxy records. However, very recently, a new tree-ring dataset suitable for temperature reconstructions over the last millennium was developed in the northern Quebec taiga. This dataset is composed of one δ18O and six ring width chronologies. Until now, these chronologies have only been used in independent temperature reconstructions (from δ18O or ring width) showing some differences. Here, we added to the dataset a δ13C chronology and developed a significantly improved millennium-long multiproxy reconstruction (997–2006 CE) accounting for uncertainties with a Bayesian approach that evaluates the likelihood of each proxy model. We also undertook a methodological sensitivity analysis to assess the different responses of each proxy to abrupt forcings such as strong volcanic eruptions. Ring width showed a larger response to single eruptions and a larger cumulative impact of multiple eruptions during active volcanic periods, δ18O showed intermediate responses, and δ13C was mostly insensitive to volcanic eruptions. We conclude that all reconstructions based on a single proxy can be misleading because of the possible reduced or amplified responses to specific forcing agents. |
format |
Article in Journal/Newspaper |
author |
Gennaretti, Fabio Huard, David Naulier, Maud Savard, Martine Bégin, Christian Arseneault, Dominique Guiot, Joel |
author_facet |
Gennaretti, Fabio Huard, David Naulier, Maud Savard, Martine Bégin, Christian Arseneault, Dominique Guiot, Joel |
author_sort |
Gennaretti, Fabio |
title |
Bayesian multiproxy temperature reconstruction with black spruce ring widths and stable isotopes from the northern Quebec taiga |
title_short |
Bayesian multiproxy temperature reconstruction with black spruce ring widths and stable isotopes from the northern Quebec taiga |
title_full |
Bayesian multiproxy temperature reconstruction with black spruce ring widths and stable isotopes from the northern Quebec taiga |
title_fullStr |
Bayesian multiproxy temperature reconstruction with black spruce ring widths and stable isotopes from the northern Quebec taiga |
title_full_unstemmed |
Bayesian multiproxy temperature reconstruction with black spruce ring widths and stable isotopes from the northern Quebec taiga |
title_sort |
bayesian multiproxy temperature reconstruction with black spruce ring widths and stable isotopes from the northern quebec taiga |
publishDate |
2017 |
url |
https://depositum.uqat.ca/id/eprint/1070/ https://depositum.uqat.ca/id/eprint/1070/1/gennarettietal_cd_mars2017.pdf https://doi.org/10.1007/s00382-017-3565-5 |
genre |
taiga |
genre_facet |
taiga |
op_relation |
https://depositum.uqat.ca/id/eprint/1070/1/gennarettietal_cd_mars2017.pdf Gennaretti, Fabio, Huard, David, Naulier, Maud, Savard, Martine, Bégin, Christian, Arseneault, Dominique et Guiot, Joel (2017). Bayesian multiproxy temperature reconstruction with black spruce ring widths and stable isotopes from the northern Quebec taiga. Climate Dynamics , 49 (11-12). p. 4107-4119. doi:10.1007/s00382-017-3565-5 <https://doi.org/10.1007/s00382-017-3565-5> Repéré dans Depositum à https://depositum.uqat.ca/id/eprint/1070 doi:10.1007/s00382-017-3565-5 |
op_doi |
https://doi.org/10.1007/s00382-017-3565-5 |
container_title |
Climate Dynamics |
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49 |
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11-12 |
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4107 |
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4119 |
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1766214054238486528 |