Chronological characteristics for snow accumulation on Styx Glacier in northern Victoria Land, Antarctica
Abstract Under the potential to reconstruct the past climatic and atmospheric conditions from a deep ice core in the coastal Antarctic site (Styx Glacier), an 8.84 m long firn core (73°50.975′ S, 163°41.640′ E; 1623 m a.s.l.) was initially studied to propose a reliable age scale for the local estima...
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crcambridgeupr:10.1017/jog.2020.53 2024-09-15T17:47:53+00:00 Chronological characteristics for snow accumulation on Styx Glacier in northern Victoria Land, Antarctica Nyamgerel, Yalalt Han, Yeongcheol Kim, Songyi Hong, Sang-Bum Lee, Jeonghoon Hur, Soon Do 2020 http://dx.doi.org/10.1017/jog.2020.53 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143020000532 en eng Cambridge University Press (CUP) http://creativecommons.org/licenses/by-nc-nd/4.0/ Journal of Glaciology volume 66, issue 260, page 916-926 ISSN 0022-1430 1727-5652 journal-article 2020 crcambridgeupr https://doi.org/10.1017/jog.2020.53 2024-07-10T04:04:12Z Abstract Under the potential to reconstruct the past climatic and atmospheric conditions from a deep ice core in the coastal Antarctic site (Styx Glacier), an 8.84 m long firn core (73°50.975′ S, 163°41.640′ E; 1623 m a.s.l.) was initially studied to propose a reliable age scale for the local estimation of snow accumulation rate. The seasonal variations of δ 18 O, methanesulfonic acid (MSA) and non-sea-salt sulfate (nssSO 4 2– ) were used for the firn core dating and revealed 25 annual peaks (from 1990 to 2014) with volcanic sulfate signal. The observed declining trend in annual accumulation rate with a mean value of 146 ± 60 kg m –2 a –1 is likely to be linked to the changes of sea-ice extent in the Ross Sea region. Moreover, the temporal variation of the annual mean δ 18 O, an annual flux of MSA and nssSO 4 2– also likely to be under the influence of ice-covered and open water area. This study suggests a potential to recover past changes in an oceanic environment and will be useful for the interpretation of the long ice core drilled at the same site. Article in Journal/Newspaper Antarc* Antarctic Antarctica ice core Journal of Glaciology Ross Sea Sea ice Victoria Land Cambridge University Press Journal of Glaciology 66 260 916 926 |
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Open Polar |
collection |
Cambridge University Press |
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crcambridgeupr |
language |
English |
description |
Abstract Under the potential to reconstruct the past climatic and atmospheric conditions from a deep ice core in the coastal Antarctic site (Styx Glacier), an 8.84 m long firn core (73°50.975′ S, 163°41.640′ E; 1623 m a.s.l.) was initially studied to propose a reliable age scale for the local estimation of snow accumulation rate. The seasonal variations of δ 18 O, methanesulfonic acid (MSA) and non-sea-salt sulfate (nssSO 4 2– ) were used for the firn core dating and revealed 25 annual peaks (from 1990 to 2014) with volcanic sulfate signal. The observed declining trend in annual accumulation rate with a mean value of 146 ± 60 kg m –2 a –1 is likely to be linked to the changes of sea-ice extent in the Ross Sea region. Moreover, the temporal variation of the annual mean δ 18 O, an annual flux of MSA and nssSO 4 2– also likely to be under the influence of ice-covered and open water area. This study suggests a potential to recover past changes in an oceanic environment and will be useful for the interpretation of the long ice core drilled at the same site. |
format |
Article in Journal/Newspaper |
author |
Nyamgerel, Yalalt Han, Yeongcheol Kim, Songyi Hong, Sang-Bum Lee, Jeonghoon Hur, Soon Do |
spellingShingle |
Nyamgerel, Yalalt Han, Yeongcheol Kim, Songyi Hong, Sang-Bum Lee, Jeonghoon Hur, Soon Do Chronological characteristics for snow accumulation on Styx Glacier in northern Victoria Land, Antarctica |
author_facet |
Nyamgerel, Yalalt Han, Yeongcheol Kim, Songyi Hong, Sang-Bum Lee, Jeonghoon Hur, Soon Do |
author_sort |
Nyamgerel, Yalalt |
title |
Chronological characteristics for snow accumulation on Styx Glacier in northern Victoria Land, Antarctica |
title_short |
Chronological characteristics for snow accumulation on Styx Glacier in northern Victoria Land, Antarctica |
title_full |
Chronological characteristics for snow accumulation on Styx Glacier in northern Victoria Land, Antarctica |
title_fullStr |
Chronological characteristics for snow accumulation on Styx Glacier in northern Victoria Land, Antarctica |
title_full_unstemmed |
Chronological characteristics for snow accumulation on Styx Glacier in northern Victoria Land, Antarctica |
title_sort |
chronological characteristics for snow accumulation on styx glacier in northern victoria land, antarctica |
publisher |
Cambridge University Press (CUP) |
publishDate |
2020 |
url |
http://dx.doi.org/10.1017/jog.2020.53 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143020000532 |
genre |
Antarc* Antarctic Antarctica ice core Journal of Glaciology Ross Sea Sea ice Victoria Land |
genre_facet |
Antarc* Antarctic Antarctica ice core Journal of Glaciology Ross Sea Sea ice Victoria Land |
op_source |
Journal of Glaciology volume 66, issue 260, page 916-926 ISSN 0022-1430 1727-5652 |
op_rights |
http://creativecommons.org/licenses/by-nc-nd/4.0/ |
op_doi |
https://doi.org/10.1017/jog.2020.53 |
container_title |
Journal of Glaciology |
container_volume |
66 |
container_issue |
260 |
container_start_page |
916 |
op_container_end_page |
926 |
_version_ |
1810497584515514368 |