Last millennium climate changes over the Antarctic Peninsula and southern Patagonia in CESM-LME simulations: Differences between Medieval Climate Anomaly and present-day temperatures
International audience This paper describes differences between Medieval Climate Anomaly (MCA) and present-day temperatures in the area composed of the Antarctic Peninsula, southern Patagonia, and the surrounding southern oceans. The investigation is conducted with the simulation results from the Co...
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Online Access: | https://hal.science/hal-03835366 https://doi.org/10.1016/j.quascirev.2021.107273 |
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ftccsdartic:oai:HAL:hal-03835366v1 2023-11-12T04:06:49+01:00 Last millennium climate changes over the Antarctic Peninsula and southern Patagonia in CESM-LME simulations: Differences between Medieval Climate Anomaly and present-day temperatures Silvestri, Gabriel Berman, Ana Laura de Vleeschouwer, Francois Wainer, Ilana Instituto Franco-Argentino sobre Estudios de Clima y sus Impactos Buenos Aires (IFAECI) Centro de Investigaciones del Mar y la Atmósfera (CIMA) Consejo Nacional de Investigaciones Científicas y Técnicas Buenos Aires (CONICET)-Facultad de Ciencias Exactas y Naturales Buenos Aires (FCEyN) Universidad de Buenos Aires Buenos Aires (UBA)-Universidad de Buenos Aires Buenos Aires (UBA)-Consejo Nacional de Investigaciones Científicas y Técnicas Buenos Aires (CONICET)-Facultad de Ciencias Exactas y Naturales Buenos Aires (FCEyN) Universidad de Buenos Aires Buenos Aires (UBA)-Universidad de Buenos Aires Buenos Aires (UBA)-Centre National de la Recherche Scientifique (CNRS) 2021-12 https://hal.science/hal-03835366 https://doi.org/10.1016/j.quascirev.2021.107273 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.quascirev.2021.107273 hal-03835366 https://hal.science/hal-03835366 doi:10.1016/j.quascirev.2021.107273 ISSN: 0277-3791 Quaternary Science Reviews https://hal.science/hal-03835366 Quaternary Science Reviews, 2021, 274, pp.107273. ⟨10.1016/j.quascirev.2021.107273⟩ [SDE]Environmental Sciences info:eu-repo/semantics/article Journal articles 2021 ftccsdartic https://doi.org/10.1016/j.quascirev.2021.107273 2023-10-28T22:40:42Z International audience This paper describes differences between Medieval Climate Anomaly (MCA) and present-day temperatures in the area composed of the Antarctic Peninsula, southern Patagonia, and the surrounding southern oceans. The investigation is conducted with the simulation results from the Community Earth System Model Last Millennium Ensemble (CESM-LME) considering the impact of each natural (volcanic activity and solar variability) and anthropogenic (greenhouse gas, ozone-aerosols and land use/land cover) individual forcing relative to the full forced simulations. Model results show generalized warming during the MCA in the study area. However, the simulated MCA temperatures are significantly colder than present-day mean values due to the influence of increased atmospheric greenhouse gas concentrations since the beginning of the modern Industrial Era in the ∼1850s. In fact, model runs in which only natural forcings were applied show that, in the absence of greenhouse gas forcing, present-day temperatures in the Antarctic Peninsula and southern Patagonia would be lower than or similar to those during the MCA. The study demonstrates the value of paleoclimate proxy–model comparisons but also highlights the limitations of current available proxy information to perform that integration in the study area. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Antarctic The Antarctic Antarctic Peninsula Patagonia Quaternary Science Reviews 274 107273 |
institution |
Open Polar |
collection |
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
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ftccsdartic |
language |
English |
topic |
[SDE]Environmental Sciences |
spellingShingle |
[SDE]Environmental Sciences Silvestri, Gabriel Berman, Ana Laura de Vleeschouwer, Francois Wainer, Ilana Last millennium climate changes over the Antarctic Peninsula and southern Patagonia in CESM-LME simulations: Differences between Medieval Climate Anomaly and present-day temperatures |
topic_facet |
[SDE]Environmental Sciences |
description |
International audience This paper describes differences between Medieval Climate Anomaly (MCA) and present-day temperatures in the area composed of the Antarctic Peninsula, southern Patagonia, and the surrounding southern oceans. The investigation is conducted with the simulation results from the Community Earth System Model Last Millennium Ensemble (CESM-LME) considering the impact of each natural (volcanic activity and solar variability) and anthropogenic (greenhouse gas, ozone-aerosols and land use/land cover) individual forcing relative to the full forced simulations. Model results show generalized warming during the MCA in the study area. However, the simulated MCA temperatures are significantly colder than present-day mean values due to the influence of increased atmospheric greenhouse gas concentrations since the beginning of the modern Industrial Era in the ∼1850s. In fact, model runs in which only natural forcings were applied show that, in the absence of greenhouse gas forcing, present-day temperatures in the Antarctic Peninsula and southern Patagonia would be lower than or similar to those during the MCA. The study demonstrates the value of paleoclimate proxy–model comparisons but also highlights the limitations of current available proxy information to perform that integration in the study area. |
author2 |
Instituto Franco-Argentino sobre Estudios de Clima y sus Impactos Buenos Aires (IFAECI) Centro de Investigaciones del Mar y la Atmósfera (CIMA) Consejo Nacional de Investigaciones Científicas y Técnicas Buenos Aires (CONICET)-Facultad de Ciencias Exactas y Naturales Buenos Aires (FCEyN) Universidad de Buenos Aires Buenos Aires (UBA)-Universidad de Buenos Aires Buenos Aires (UBA)-Consejo Nacional de Investigaciones Científicas y Técnicas Buenos Aires (CONICET)-Facultad de Ciencias Exactas y Naturales Buenos Aires (FCEyN) Universidad de Buenos Aires Buenos Aires (UBA)-Universidad de Buenos Aires Buenos Aires (UBA)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Silvestri, Gabriel Berman, Ana Laura de Vleeschouwer, Francois Wainer, Ilana |
author_facet |
Silvestri, Gabriel Berman, Ana Laura de Vleeschouwer, Francois Wainer, Ilana |
author_sort |
Silvestri, Gabriel |
title |
Last millennium climate changes over the Antarctic Peninsula and southern Patagonia in CESM-LME simulations: Differences between Medieval Climate Anomaly and present-day temperatures |
title_short |
Last millennium climate changes over the Antarctic Peninsula and southern Patagonia in CESM-LME simulations: Differences between Medieval Climate Anomaly and present-day temperatures |
title_full |
Last millennium climate changes over the Antarctic Peninsula and southern Patagonia in CESM-LME simulations: Differences between Medieval Climate Anomaly and present-day temperatures |
title_fullStr |
Last millennium climate changes over the Antarctic Peninsula and southern Patagonia in CESM-LME simulations: Differences between Medieval Climate Anomaly and present-day temperatures |
title_full_unstemmed |
Last millennium climate changes over the Antarctic Peninsula and southern Patagonia in CESM-LME simulations: Differences between Medieval Climate Anomaly and present-day temperatures |
title_sort |
last millennium climate changes over the antarctic peninsula and southern patagonia in cesm-lme simulations: differences between medieval climate anomaly and present-day temperatures |
publisher |
HAL CCSD |
publishDate |
2021 |
url |
https://hal.science/hal-03835366 https://doi.org/10.1016/j.quascirev.2021.107273 |
geographic |
Antarctic The Antarctic Antarctic Peninsula Patagonia |
geographic_facet |
Antarctic The Antarctic Antarctic Peninsula Patagonia |
genre |
Antarc* Antarctic Antarctic Peninsula |
genre_facet |
Antarc* Antarctic Antarctic Peninsula |
op_source |
ISSN: 0277-3791 Quaternary Science Reviews https://hal.science/hal-03835366 Quaternary Science Reviews, 2021, 274, pp.107273. ⟨10.1016/j.quascirev.2021.107273⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.quascirev.2021.107273 hal-03835366 https://hal.science/hal-03835366 doi:10.1016/j.quascirev.2021.107273 |
op_doi |
https://doi.org/10.1016/j.quascirev.2021.107273 |
container_title |
Quaternary Science Reviews |
container_volume |
274 |
container_start_page |
107273 |
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1782327775286263808 |