Chronological characteristics for snow accumulation on Styx Glacier in northern Victoria Land, Antarctica
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 s...
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| Format: | Article |
| Language: | English |
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Cambridge University Press
2020-12-01
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| Series: | Journal of Glaciology |
| Subjects: | |
| Online Access: | https://www.cambridge.org/core/product/identifier/S0022143020000532/type/journal_article |
| _version_ | 1811155786773037056 |
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| author | Yalalt Nyamgerel Yeongcheol Han Songyi Kim Sang-Bum Hong Jeonghoon Lee Soon Do Hur |
| author_facet | Yalalt Nyamgerel Yeongcheol Han Songyi Kim Sang-Bum Hong Jeonghoon Lee Soon Do Hur |
| author_sort | Yalalt Nyamgerel |
| collection | DOAJ |
| description | 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 δ18O, methanesulfonic acid (MSA) and non-sea-salt sulfate (nssSO42–) 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 δ18O, an annual flux of MSA and nssSO42– 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. |
| first_indexed | 2024-04-10T04:40:29Z |
| format | Article |
| id | doaj.art-3201ab2f67f8457e9b1e4fa2fcb5b061 |
| institution | Directory Open Access Journal |
| issn | 0022-1430 1727-5652 |
| language | English |
| last_indexed | 2024-04-10T04:40:29Z |
| publishDate | 2020-12-01 |
| publisher | Cambridge University Press |
| record_format | Article |
| series | Journal of Glaciology |
| spelling | doaj.art-3201ab2f67f8457e9b1e4fa2fcb5b0612023-03-09T12:41:00ZengCambridge University PressJournal of Glaciology0022-14301727-56522020-12-016691692610.1017/jog.2020.53Chronological characteristics for snow accumulation on Styx Glacier in northern Victoria Land, AntarcticaYalalt Nyamgerel0Yeongcheol Han1Songyi Kim2Sang-Bum Hong3Jeonghoon Lee4https://orcid.org/0000-0002-1256-4431Soon Do Hur5Department of Science Education, Ewha Womans University, Seoul 120-750, Korea Division of Paleoenvironment, Korea Polar Research Institute, Incheon, 21990, KoreaDivision of Paleoenvironment, Korea Polar Research Institute, Incheon, 21990, KoreaDepartment of Science Education, Ewha Womans University, Seoul 120-750, Korea Division of Paleoenvironment, Korea Polar Research Institute, Incheon, 21990, KoreaDivision of Paleoenvironment, Korea Polar Research Institute, Incheon, 21990, KoreaDepartment of Science Education, Ewha Womans University, Seoul 120-750, KoreaDivision of Paleoenvironment, Korea Polar Research Institute, Incheon, 21990, KoreaUnder 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 δ18O, methanesulfonic acid (MSA) and non-sea-salt sulfate (nssSO42–) 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 δ18O, an annual flux of MSA and nssSO42– 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.https://www.cambridge.org/core/product/identifier/S0022143020000532/type/journal_articleAnnual layer countingionic speciessnow accumulationstable water isotopesStyx Glacier |
| spellingShingle | Yalalt Nyamgerel Yeongcheol Han Songyi Kim Sang-Bum Hong Jeonghoon Lee Soon Do Hur Chronological characteristics for snow accumulation on Styx Glacier in northern Victoria Land, Antarctica Journal of Glaciology Annual layer counting ionic species snow accumulation stable water isotopes Styx Glacier |
| title | 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_short | 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 |
| topic | Annual layer counting ionic species snow accumulation stable water isotopes Styx Glacier |
| url | https://www.cambridge.org/core/product/identifier/S0022143020000532/type/journal_article |
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