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Chronological characteristics for snow accumulation on Styx Glacier in northern Victoria Land, Antarctica

Title
Chronological characteristics for snow accumulation on Styx Glacier in northern Victoria Land, Antarctica
Authors
Nyamgerel, YalaltHan, YeongcheolKim, SongyiHong, Sang-BumLee, JeonghoonHur, Soon Do
Ewha Authors
이정훈
SCOPUS Author ID
이정훈scopus
Issue Date
2020
Journal Title
JOURNAL OF GLACIOLOGY
ISSN
0022-1430JCR Link

1727-5652JCR Link
Citation
JOURNAL OF GLACIOLOGY vol. 66, no. 260, pp. 916 - 926
Keywords
Annual layer countingionic speciessnow accumulationstable water isotopesStyx Glacier
Publisher
CAMBRIDGE UNIV PRESS
Indexed
SCIE; SCOPUS WOS scopus
Document Type
Article
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 degrees 50.975 ' S, 163 degrees 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 delta O-18, 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 delta O-18, 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.
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DOI
10.1017/jog.2020.53
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사범대학 > 과학교육과 > Journal papers
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