Variability of sea salt and methanesulfonate in firn cores from northern Victoria Land, Antarctica: Their links to oceanic and atmospheric condition variability in the Ross Sea
The potential ice core proxies of variability in oceanic and atmospheric conditions over the Ross Sea were evaluated. This study examined sea salt sodium (ss–Na + ) and biogenic sulfur (methanesulfonate, MS – ) records, covering 23 years between 1990 and 2012, from two firn cores drilled on the Styx...
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Online Access: | http://dx.doi.org/10.3389/feart.2022.896470 https://www.frontiersin.org/articles/10.3389/feart.2022.896470/full |
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crfrontiers:10.3389/feart.2022.896470 2024-02-11T09:58:55+01:00 Variability of sea salt and methanesulfonate in firn cores from northern Victoria Land, Antarctica: Their links to oceanic and atmospheric condition variability in the Ross Sea Ro, Seokhyun Hong, Sang-Bum Kim, Joo-Hong Han, Yeongcheol Hur, Soon Do Kang, Jung-Ho Kim, Songyi Lim, Changkyu Chang, Chaewon Moon, Jangil Kim, Seong-Joong Hong, Sungmin 2022 http://dx.doi.org/10.3389/feart.2022.896470 https://www.frontiersin.org/articles/10.3389/feart.2022.896470/full unknown Frontiers Media SA https://creativecommons.org/licenses/by/4.0/ Frontiers in Earth Science volume 10 ISSN 2296-6463 General Earth and Planetary Sciences journal-article 2022 crfrontiers https://doi.org/10.3389/feart.2022.896470 2024-01-26T10:08:44Z The potential ice core proxies of variability in oceanic and atmospheric conditions over the Ross Sea were evaluated. This study examined sea salt sodium (ss–Na + ) and biogenic sulfur (methanesulfonate, MS – ) records, covering 23 years between 1990 and 2012, from two firn cores drilled on the Styx Glacier plateau (SGP), northern Victoria Land, East Antarctica, to examine the potential links between those records and datasets for various climate variables. The comparison showed that the interannual variability of the ss–Na + record is closely related to Pacific–South American mode 2 (PSA2) in the Ross Sea sector, exhibiting an increased ss–Na + flux, owing most likely to more frequent penetration of maritime air masses from the western Ross Sea to the SGP when the winter/spring PSA2 mode becomes more pronounced. The observed MS – record revealed statistically significant positive correlations with the changes in the summertime chlorophyll a concentration in the Ross Sea polynya (RSP) and wind speed in the southern Ross Sea region. This indicates the dominant role of a combination of changes in the summertime primary productivity and wind speed over the RSP in modulating the MS – deposition flux at the SGP. These results highlight the suitability of the ss–Na + and MS – records from the SGP as proxies for characterizing the dominant patterns of variability in oceanic and atmospheric conditions and their underlying mechanisms on interannual and longer timescales beyond the instrumental limits over the Ross Sea region. Article in Journal/Newspaper Antarc* Antarctica East Antarctica ice core Ross Sea Victoria Land Frontiers (Publisher) East Antarctica Pacific Ross Sea Styx Glacier ENVELOPE(163.850,163.850,-74.033,-74.033) Victoria Land Frontiers in Earth Science 10 |
institution |
Open Polar |
collection |
Frontiers (Publisher) |
op_collection_id |
crfrontiers |
language |
unknown |
topic |
General Earth and Planetary Sciences |
spellingShingle |
General Earth and Planetary Sciences Ro, Seokhyun Hong, Sang-Bum Kim, Joo-Hong Han, Yeongcheol Hur, Soon Do Kang, Jung-Ho Kim, Songyi Lim, Changkyu Chang, Chaewon Moon, Jangil Kim, Seong-Joong Hong, Sungmin Variability of sea salt and methanesulfonate in firn cores from northern Victoria Land, Antarctica: Their links to oceanic and atmospheric condition variability in the Ross Sea |
topic_facet |
General Earth and Planetary Sciences |
description |
The potential ice core proxies of variability in oceanic and atmospheric conditions over the Ross Sea were evaluated. This study examined sea salt sodium (ss–Na + ) and biogenic sulfur (methanesulfonate, MS – ) records, covering 23 years between 1990 and 2012, from two firn cores drilled on the Styx Glacier plateau (SGP), northern Victoria Land, East Antarctica, to examine the potential links between those records and datasets for various climate variables. The comparison showed that the interannual variability of the ss–Na + record is closely related to Pacific–South American mode 2 (PSA2) in the Ross Sea sector, exhibiting an increased ss–Na + flux, owing most likely to more frequent penetration of maritime air masses from the western Ross Sea to the SGP when the winter/spring PSA2 mode becomes more pronounced. The observed MS – record revealed statistically significant positive correlations with the changes in the summertime chlorophyll a concentration in the Ross Sea polynya (RSP) and wind speed in the southern Ross Sea region. This indicates the dominant role of a combination of changes in the summertime primary productivity and wind speed over the RSP in modulating the MS – deposition flux at the SGP. These results highlight the suitability of the ss–Na + and MS – records from the SGP as proxies for characterizing the dominant patterns of variability in oceanic and atmospheric conditions and their underlying mechanisms on interannual and longer timescales beyond the instrumental limits over the Ross Sea region. |
format |
Article in Journal/Newspaper |
author |
Ro, Seokhyun Hong, Sang-Bum Kim, Joo-Hong Han, Yeongcheol Hur, Soon Do Kang, Jung-Ho Kim, Songyi Lim, Changkyu Chang, Chaewon Moon, Jangil Kim, Seong-Joong Hong, Sungmin |
author_facet |
Ro, Seokhyun Hong, Sang-Bum Kim, Joo-Hong Han, Yeongcheol Hur, Soon Do Kang, Jung-Ho Kim, Songyi Lim, Changkyu Chang, Chaewon Moon, Jangil Kim, Seong-Joong Hong, Sungmin |
author_sort |
Ro, Seokhyun |
title |
Variability of sea salt and methanesulfonate in firn cores from northern Victoria Land, Antarctica: Their links to oceanic and atmospheric condition variability in the Ross Sea |
title_short |
Variability of sea salt and methanesulfonate in firn cores from northern Victoria Land, Antarctica: Their links to oceanic and atmospheric condition variability in the Ross Sea |
title_full |
Variability of sea salt and methanesulfonate in firn cores from northern Victoria Land, Antarctica: Their links to oceanic and atmospheric condition variability in the Ross Sea |
title_fullStr |
Variability of sea salt and methanesulfonate in firn cores from northern Victoria Land, Antarctica: Their links to oceanic and atmospheric condition variability in the Ross Sea |
title_full_unstemmed |
Variability of sea salt and methanesulfonate in firn cores from northern Victoria Land, Antarctica: Their links to oceanic and atmospheric condition variability in the Ross Sea |
title_sort |
variability of sea salt and methanesulfonate in firn cores from northern victoria land, antarctica: their links to oceanic and atmospheric condition variability in the ross sea |
publisher |
Frontiers Media SA |
publishDate |
2022 |
url |
http://dx.doi.org/10.3389/feart.2022.896470 https://www.frontiersin.org/articles/10.3389/feart.2022.896470/full |
long_lat |
ENVELOPE(163.850,163.850,-74.033,-74.033) |
geographic |
East Antarctica Pacific Ross Sea Styx Glacier Victoria Land |
geographic_facet |
East Antarctica Pacific Ross Sea Styx Glacier Victoria Land |
genre |
Antarc* Antarctica East Antarctica ice core Ross Sea Victoria Land |
genre_facet |
Antarc* Antarctica East Antarctica ice core Ross Sea Victoria Land |
op_source |
Frontiers in Earth Science volume 10 ISSN 2296-6463 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3389/feart.2022.896470 |
container_title |
Frontiers in Earth Science |
container_volume |
10 |
_version_ |
1790594732912541696 |