Glaciology of Blue Ice Areas in Antarctica

在南极洲西部的莫尔顿山蓝冰原收集了一个“水平冰芯”，对样品材料的初步分析表明，该地点的冰中保存了约500万年的气候记录。该奖项将通过评估冰流引起地层剖面变形的可能性，有助于对莫尔顿山记录的理解。此外，该奖项建立在对蓝冰区作为长期气候记录档案的认可的基础上，通过对南极洲东部艾伦山潜在的水平冰芯位置进行侦察研究。该项目的目标是促进对南极洲蓝色冰区的冰川学认识。将研究莫尔顿山蓝冰原的冰流状况，以评估地层记录变形的可能性，并将完成对艾伦山蓝冰原潜在水平冰芯地点的侦察。将在每个地点开展短期实地项目，收集冰流和冰下地形的相关测量数据，并进行材料取样，以保存可供评估的地层序列。

A 'horizontal ice core' was collected at the Mount Moulton blue ice field in West Antarctica and preliminary analyses of the sample material suggests that a ~500 kyr climate record is preserved in the ice at this site. This award will contribute to the understanding of the Mt Moulton record by assessing the potential for ice-flow induced deformation of the stratigraphic profile. In addition, this award builds on the recognition of blue ice areas as archives of long climate records by conducting reconnaissance studies for a potential horizontal ice core location at the Allan Hills in East Antarctica. The objectives of this project are to contribute to the glaciological understanding of blue ice areas in Antarctica. Ice flow conditions at the Mt Moulton blue ice field will be studied to assess the possibility that the stratigraphic record has been deformed and reconnaissance of a potential horizontal ice core site in the Allan Hills blue ice field will also be accomplished. Short field programs will be undertaken at each location to collect relevant measurements of ice flow and subglacial topography, and to conduct sampling of material that will enable the preservation of the stratigraphic sequences to be assessed.