ADVANCES IN POLAR SCIENCE ›› 2016, Vol. 28 ›› Issue (4): 442-450.DOI: 10.13679/j.jdyj.2016.4.442
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Su Xiaogang1,2, Sun Bo2, Liu Chun1, Cui Xiangbin2, Guo Jingxue2
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Abstract:
Microrelief on the Antarctic ice sheet surface is the result of complex interactions between the atmosphere and the ice sheet surface. The morphological characteristics, internal structure, and evolution of microrelief play an important role in the evaluation of the mass and energy balances of the surface. The relationship between microrelief and ice layer formation provides a valuable reference regarding site selection for ice core drilling and ice core interpretation. Microrelief can be classified into three categories depending on its unique formation process: deposition type, erosion type, and long-term hiatus type. According to this classification, this paper introduces some common types of relief found in the Antarctic, such as snow dunes, ripples, sastrugi, pits, and glazed surfaces. Based on the research results of its predecessors, this work also provides a summary of the microrelief distribution law on the Antarctic ice sheet surface. Furthermore, the mass and energy balance characteristics of different microrelief areas are highlighted. Finally, the importance of glazed surfaces in the selection of ice core drilling locations is discussed, and the future prospects concerning the microrelief of the Antarctic ice sheet surface are summarized.
Key words: microrelief, glazed surface, mass balance, energy balance, ice core research
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URL: https://journal.chinare.org.cn/EN/10.13679/j.jdyj.2016.4.442
https://journal.chinare.org.cn/EN/Y2016/V28/I4/442