Spatial and temporal variability of environmental proxies from the top 120 m of two ice cores in Dronning Maud Land (East Antarctica)
The Antarctic ice sheet's future contribution to sea level rise is difficult to predict, mostly because of the uncertainty and variability of the surface mass balance (SMB). Ice cores are used to locally (kilometer scale) reconstruct SMB with a very good temporal resolution (up to sub-annual),...
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ftdoajarticles:oai:doaj.org/article:8722b65e93a0453897a89f48fd2f0361 2024-02-04T09:56:00+01:00 Spatial and temporal variability of environmental proxies from the top 120 m of two ice cores in Dronning Maud Land (East Antarctica) S. Wauthy J.-L. Tison M. Inoue S. El Amri S. Sun F. Fripiat P. Claeys F. Pattyn 2024-01-01T00:00:00Z https://doi.org/10.5194/essd-16-35-2024 https://doaj.org/article/8722b65e93a0453897a89f48fd2f0361 EN eng Copernicus Publications https://essd.copernicus.org/articles/16/35/2024/essd-16-35-2024.pdf https://doaj.org/toc/1866-3508 https://doaj.org/toc/1866-3516 doi:10.5194/essd-16-35-2024 1866-3508 1866-3516 https://doaj.org/article/8722b65e93a0453897a89f48fd2f0361 Earth System Science Data, Vol 16, Pp 35-58 (2024) Environmental sciences GE1-350 Geology QE1-996.5 article 2024 ftdoajarticles https://doi.org/10.5194/essd-16-35-2024 2024-01-07T01:39:17Z The Antarctic ice sheet's future contribution to sea level rise is difficult to predict, mostly because of the uncertainty and variability of the surface mass balance (SMB). Ice cores are used to locally (kilometer scale) reconstruct SMB with a very good temporal resolution (up to sub-annual), especially in coastal areas where accumulation rates are high. The number of ice core records has been increasing in recent years, revealing an important spatial variability and different trends of SMB, highlighting the crucial need for greater spatial and temporal representativeness. We present records of density, water stable isotopes ( δ 18 O , δ D , and deuterium excess), major ions concentrations ( Na + , K + , Mg 2+ , Ca 2+ , MSA, Cl − , SO 4 2 - <svg:svg xmlns:svg="http://www.w3.org/2000/svg" width="29pt" height="17pt" class="svg-formula" dspmath="mathimg" md5hash="06a1e144313624090049b6627390d3e8"><svg:image xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="essd-16-35-2024-ie00001.svg" width="29pt" height="17pt" src="essd-16-35-2024-ie00001.png"/></svg:svg> , and NO 3 - <svg:svg xmlns:svg="http://www.w3.org/2000/svg" width="25pt" height="16pt" class="svg-formula" dspmath="mathimg" md5hash="dd23f13eb24280cbe650be4567ce8571"><svg:image xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="essd-16-35-2024-ie00002.svg" width="25pt" height="16pt" src="essd-16-35-2024-ie00002.png"/></svg:svg> ), and continuous electrical conductivity measurement (ECM), as well as age models and resulting surface mass balance from the top 120 m of two ice cores (FK17 and TIR18) drilled on two adjacent ice rises located in coastal Dronning Maud Land and dating back to the end of the 18th century. Both environmental proxies and SMB show contrasting behaviors, suggesting strong spatial and temporal variability at the regional scale. In terms of precipitation proxies, both ice cores show a long-term decrease in deuterium excess (d-excess) and a long-term increase in δ 18 O , although less pronounced. ... Article in Journal/Newspaper Antarc* Antarctic Antarctica Dronning Maud Land East Antarctica ice core Directory of Open Access Journals: DOAJ Articles Antarctic Dronning Maud Land East Antarctica The Antarctic Earth System Science Data 16 1 35 58 |
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Open Polar |
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Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Environmental sciences GE1-350 Geology QE1-996.5 |
spellingShingle |
Environmental sciences GE1-350 Geology QE1-996.5 S. Wauthy J.-L. Tison M. Inoue S. El Amri S. Sun F. Fripiat P. Claeys F. Pattyn Spatial and temporal variability of environmental proxies from the top 120 m of two ice cores in Dronning Maud Land (East Antarctica) |
topic_facet |
Environmental sciences GE1-350 Geology QE1-996.5 |
description |
The Antarctic ice sheet's future contribution to sea level rise is difficult to predict, mostly because of the uncertainty and variability of the surface mass balance (SMB). Ice cores are used to locally (kilometer scale) reconstruct SMB with a very good temporal resolution (up to sub-annual), especially in coastal areas where accumulation rates are high. The number of ice core records has been increasing in recent years, revealing an important spatial variability and different trends of SMB, highlighting the crucial need for greater spatial and temporal representativeness. We present records of density, water stable isotopes ( δ 18 O , δ D , and deuterium excess), major ions concentrations ( Na + , K + , Mg 2+ , Ca 2+ , MSA, Cl − , SO 4 2 - <svg:svg xmlns:svg="http://www.w3.org/2000/svg" width="29pt" height="17pt" class="svg-formula" dspmath="mathimg" md5hash="06a1e144313624090049b6627390d3e8"><svg:image xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="essd-16-35-2024-ie00001.svg" width="29pt" height="17pt" src="essd-16-35-2024-ie00001.png"/></svg:svg> , and NO 3 - <svg:svg xmlns:svg="http://www.w3.org/2000/svg" width="25pt" height="16pt" class="svg-formula" dspmath="mathimg" md5hash="dd23f13eb24280cbe650be4567ce8571"><svg:image xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="essd-16-35-2024-ie00002.svg" width="25pt" height="16pt" src="essd-16-35-2024-ie00002.png"/></svg:svg> ), and continuous electrical conductivity measurement (ECM), as well as age models and resulting surface mass balance from the top 120 m of two ice cores (FK17 and TIR18) drilled on two adjacent ice rises located in coastal Dronning Maud Land and dating back to the end of the 18th century. Both environmental proxies and SMB show contrasting behaviors, suggesting strong spatial and temporal variability at the regional scale. In terms of precipitation proxies, both ice cores show a long-term decrease in deuterium excess (d-excess) and a long-term increase in δ 18 O , although less pronounced. ... |
format |
Article in Journal/Newspaper |
author |
S. Wauthy J.-L. Tison M. Inoue S. El Amri S. Sun F. Fripiat P. Claeys F. Pattyn |
author_facet |
S. Wauthy J.-L. Tison M. Inoue S. El Amri S. Sun F. Fripiat P. Claeys F. Pattyn |
author_sort |
S. Wauthy |
title |
Spatial and temporal variability of environmental proxies from the top 120 m of two ice cores in Dronning Maud Land (East Antarctica) |
title_short |
Spatial and temporal variability of environmental proxies from the top 120 m of two ice cores in Dronning Maud Land (East Antarctica) |
title_full |
Spatial and temporal variability of environmental proxies from the top 120 m of two ice cores in Dronning Maud Land (East Antarctica) |
title_fullStr |
Spatial and temporal variability of environmental proxies from the top 120 m of two ice cores in Dronning Maud Land (East Antarctica) |
title_full_unstemmed |
Spatial and temporal variability of environmental proxies from the top 120 m of two ice cores in Dronning Maud Land (East Antarctica) |
title_sort |
spatial and temporal variability of environmental proxies from the top 120 m of two ice cores in dronning maud land (east antarctica) |
publisher |
Copernicus Publications |
publishDate |
2024 |
url |
https://doi.org/10.5194/essd-16-35-2024 https://doaj.org/article/8722b65e93a0453897a89f48fd2f0361 |
geographic |
Antarctic Dronning Maud Land East Antarctica The Antarctic |
geographic_facet |
Antarctic Dronning Maud Land East Antarctica The Antarctic |
genre |
Antarc* Antarctic Antarctica Dronning Maud Land East Antarctica ice core |
genre_facet |
Antarc* Antarctic Antarctica Dronning Maud Land East Antarctica ice core |
op_source |
Earth System Science Data, Vol 16, Pp 35-58 (2024) |
op_relation |
https://essd.copernicus.org/articles/16/35/2024/essd-16-35-2024.pdf https://doaj.org/toc/1866-3508 https://doaj.org/toc/1866-3516 doi:10.5194/essd-16-35-2024 1866-3508 1866-3516 https://doaj.org/article/8722b65e93a0453897a89f48fd2f0361 |
op_doi |
https://doi.org/10.5194/essd-16-35-2024 |
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Earth System Science Data |
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16 |
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35 |
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58 |
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