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High snow accumulation on Amundsen Sea coastal ice rise, West Antarctica
- Title
- High snow accumulation on Amundsen Sea coastal ice rise, West Antarctica
- Authors
- Hong, Sang -Bum; Nyamgerel, Yalalt; Lee, Won Sang; Lee, Jeonghoon
- Ewha Authors
- 이정훈
- SCOPUS Author ID
- 이정훈
- Issue Date
- 2023
- Journal Title
- POLISH POLAR RESEARCH
- ISSN
- 0138-0338
2081-8262
- Citation
- POLISH POLAR RESEARCH vol. 44, no. 4, pp. 365 - 384
- Keywords
- Antarctica; Bear Peninsula; Moore Dome; snow -pit.
- Publisher
- POLSKA AKAD NAUK, POLISH ACAD SCIENCES
- Indexed
- SCIE; SCOPUS
- Document Type
- Article
- Abstract
- Polar snow and its accumulation preserve valuable information derived from the atmosphere on past climate and environmental changes in high resolution, particularly in coastal sites. A 2.5-m snow-pit was excavated from the coastal ice rise (Moore Dome) near Amundsen Sea region in February 2012. This study evaluated the isotopic and chemical compositions in the snow-pit and compared them with meteorological variables. Based on the seasonal peaks of the MSA and nssSO42- together with delta 18O, delta D, and d-excess, the snow-pit record was corresponded to accumulation during austral winter 2011 to summer 2011/2012. The annual mean accumulation rate was assumed thus to be as large as or even higher than 1.03 m w.e. yr-1 at this site. A relatively warm winter temperature in 2011 was traceable in the variations of delta 18O, delta D, and d-excess. This study emphasizes the importance of the high snow accumulation observed at this site in providing valuable information on sub-annual variations in climate and environmental changes through the study of longer ice cores.
- DOI
- 10.24425/ppr.2023.145440
- Appears in Collections:
- 사범대학 > 과학교육과 > Journal papers
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