To understand the long-term climate and glaciological evolution of the ice sheet in the region bordering the Weddell Sea, the British Antarctic Survey has undertaken a series of successful ice core projects drilling to bedrock on Berkner Island, James Ross Island and the Fletcher Promontory. A new project, WACSWAIN, seeks to increase this knowledge by further drilling to bedrock on two further ice rises in this region. In a single-season project, an ice core was recovered to bedrock at 651 m on Skytrain Ice Rise using an ice core drill in a fluid-filled borehole. In a second season, a rapid access drill was used to recover ice chips to 323 m on Sherman Island in a dry borehole, though failing to reach the bedrock which was at an estimated depth of 428 m.

中文翻译：

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Skytrain Ice Rise 和南极洲谢尔曼岛的冰钻

为了了解威德尔海沿岸地区冰盖的长期气候和冰川演化，英国南极调查局开展了一系列成功的冰芯项目，钻探伯克纳岛、詹姆斯罗斯岛和弗莱彻海角的基岩。一个名为 WACSWAIN 的新项目旨在通过在该地区另外两个冰隆上进一步钻探基岩来增加这方面的知识。在一个单季项目中，使用冰芯钻在充满液体的钻孔中，在 Skytrain Ice Rise 上将冰芯恢复到 651 m 处的基岩。在第二个季节，在谢尔曼岛的一个干燥钻孔中，使用快速通道钻机将冰屑恢复到 323 m，但未能到达估计深度为 428 m 的基岩。