200-years ice core bromine reconstruction at Dome C (Antarctica): observational and modelling results
Bromine enrichment (Brenr) has been proposed as an ice core proxy for past sea-ice reconstruction. Understanding the processes that influence bromine preservation in the ice is crucial to achieve a reliable interpretation of ice core signals and to potentially relate them to past sea ice variability...
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ftzenodo:oai:zenodo.org:7565059 2023-05-15T13:41:26+02:00 200-years ice core bromine reconstruction at Dome C (Antarctica): observational and modelling results Burgay, Francois Fernandez, Rafael Pedro Segato, Delia Turetta, Clara Blaszczak-Boxe, Christopher Rhodes, Rachael Scarchilli, Claudio Ciardini, Virginia Barbante, Carlo Saiz-Lopez, Alfonso Spolaor, Andrea 2023-01-24 https://zenodo.org/record/7565059 https://doi.org/10.5281/zenodo.7565059 unknown info:eu-repo/grantAgreement/EC/Horizon 2020 Framework Programme - Research and Innovation action/815384/ doi:10.5281/zenodo.7565058 https://zenodo.org/record/7565059 https://doi.org/10.5281/zenodo.7565059 oai:zenodo.org:7565059 info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/4.0/legalcode The Cryosphere bromine bromine enrichment sodium ice core record Dome C Antarctica sea-ice info:eu-repo/semantics/other dataset 2023 ftzenodo https://doi.org/10.5281/zenodo.756505910.5281/zenodo.7565058 2023-03-11T01:24:40Z Bromine enrichment (Brenr) has been proposed as an ice core proxy for past sea-ice reconstruction. Understanding the processes that influence bromine preservation in the ice is crucial to achieve a reliable interpretation of ice core signals and to potentially relate them to past sea ice variability. Here, we present a 210 years bromine record that sheds light on the main processes controlling bromine preservation in the snow and ice at Dome C, East Antarctic plateau. Using observations alongside a modelling approach, we demonstrate that the bromine signal is preserved at Dome C and it is not affected by the strong variations in ultraviolet radiation reaching the Antarctic plateau due to the stratospheric ozone hole. Based on this, we investigate whether the Dome C Brenr record can be used as an effective tracer of past Antarctic sea ice. Due to the limited time window covered by satellite measurements and the low sea-ice variability observed during the last 30 years in East Antarctica, we cannot fully validate Brenr as an effective proxy for past sea-ice reconstructions at Dome C. In this database, annual averaged data for Br, Na and Brenr for the shallow ice core are provided. This publication was generated in the frame of Beyond EPICA. The project has received funding from the European Union's Horizon 2020 research and innovation program under grant agreement no. 815384 (Oldest Ice Core) and by the "Programma Nazionale per la Ricerca in Antartide" (PNRA, project no. PNRA16_00295). This study is also supported by the bilateral international exchange award Royal Society (UK)-CNR titled: Antarctic sea-ice history: developing robust ice core proxies (IEC/R2/202110), awarded to Rachael H. Rhodes and Andrea Spolaor. Dataset Antarc* Antarctic Antarctica Antartide East Antarctica EPICA ice core Sea ice The Cryosphere Zenodo Antarctic The Antarctic East Antarctica |
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Open Polar |
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Zenodo |
op_collection_id |
ftzenodo |
language |
unknown |
topic |
bromine bromine enrichment sodium ice core record Dome C Antarctica sea-ice |
spellingShingle |
bromine bromine enrichment sodium ice core record Dome C Antarctica sea-ice Burgay, Francois Fernandez, Rafael Pedro Segato, Delia Turetta, Clara Blaszczak-Boxe, Christopher Rhodes, Rachael Scarchilli, Claudio Ciardini, Virginia Barbante, Carlo Saiz-Lopez, Alfonso Spolaor, Andrea 200-years ice core bromine reconstruction at Dome C (Antarctica): observational and modelling results |
topic_facet |
bromine bromine enrichment sodium ice core record Dome C Antarctica sea-ice |
description |
Bromine enrichment (Brenr) has been proposed as an ice core proxy for past sea-ice reconstruction. Understanding the processes that influence bromine preservation in the ice is crucial to achieve a reliable interpretation of ice core signals and to potentially relate them to past sea ice variability. Here, we present a 210 years bromine record that sheds light on the main processes controlling bromine preservation in the snow and ice at Dome C, East Antarctic plateau. Using observations alongside a modelling approach, we demonstrate that the bromine signal is preserved at Dome C and it is not affected by the strong variations in ultraviolet radiation reaching the Antarctic plateau due to the stratospheric ozone hole. Based on this, we investigate whether the Dome C Brenr record can be used as an effective tracer of past Antarctic sea ice. Due to the limited time window covered by satellite measurements and the low sea-ice variability observed during the last 30 years in East Antarctica, we cannot fully validate Brenr as an effective proxy for past sea-ice reconstructions at Dome C. In this database, annual averaged data for Br, Na and Brenr for the shallow ice core are provided. This publication was generated in the frame of Beyond EPICA. The project has received funding from the European Union's Horizon 2020 research and innovation program under grant agreement no. 815384 (Oldest Ice Core) and by the "Programma Nazionale per la Ricerca in Antartide" (PNRA, project no. PNRA16_00295). This study is also supported by the bilateral international exchange award Royal Society (UK)-CNR titled: Antarctic sea-ice history: developing robust ice core proxies (IEC/R2/202110), awarded to Rachael H. Rhodes and Andrea Spolaor. |
format |
Dataset |
author |
Burgay, Francois Fernandez, Rafael Pedro Segato, Delia Turetta, Clara Blaszczak-Boxe, Christopher Rhodes, Rachael Scarchilli, Claudio Ciardini, Virginia Barbante, Carlo Saiz-Lopez, Alfonso Spolaor, Andrea |
author_facet |
Burgay, Francois Fernandez, Rafael Pedro Segato, Delia Turetta, Clara Blaszczak-Boxe, Christopher Rhodes, Rachael Scarchilli, Claudio Ciardini, Virginia Barbante, Carlo Saiz-Lopez, Alfonso Spolaor, Andrea |
author_sort |
Burgay, Francois |
title |
200-years ice core bromine reconstruction at Dome C (Antarctica): observational and modelling results |
title_short |
200-years ice core bromine reconstruction at Dome C (Antarctica): observational and modelling results |
title_full |
200-years ice core bromine reconstruction at Dome C (Antarctica): observational and modelling results |
title_fullStr |
200-years ice core bromine reconstruction at Dome C (Antarctica): observational and modelling results |
title_full_unstemmed |
200-years ice core bromine reconstruction at Dome C (Antarctica): observational and modelling results |
title_sort |
200-years ice core bromine reconstruction at dome c (antarctica): observational and modelling results |
publishDate |
2023 |
url |
https://zenodo.org/record/7565059 https://doi.org/10.5281/zenodo.7565059 |
geographic |
Antarctic The Antarctic East Antarctica |
geographic_facet |
Antarctic The Antarctic East Antarctica |
genre |
Antarc* Antarctic Antarctica Antartide East Antarctica EPICA ice core Sea ice The Cryosphere |
genre_facet |
Antarc* Antarctic Antarctica Antartide East Antarctica EPICA ice core Sea ice The Cryosphere |
op_source |
The Cryosphere |
op_relation |
info:eu-repo/grantAgreement/EC/Horizon 2020 Framework Programme - Research and Innovation action/815384/ doi:10.5281/zenodo.7565058 https://zenodo.org/record/7565059 https://doi.org/10.5281/zenodo.7565059 oai:zenodo.org:7565059 |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/4.0/legalcode |
op_doi |
https://doi.org/10.5281/zenodo.756505910.5281/zenodo.7565058 |
_version_ |
1766150875807481856 |