The Role of Frazil Ice and Anchor Ice in Sedimentation in Subpolar Glacial Marine Environments, Antarctica

该奖项是为了支持一项为期一年的探索性研究（SGER）小额资助，以测试一个假设，即在流入亚极地海水的冰川融水中形成的冰和锚冰，可能会形成与温带和极地冰川环境沉积物不同的沉积物。拟议的研究寻找和记录在冰川末端形成的冰和锚冰，并在沉积物运输中发挥作用，这是高风险的，但如果成功，这项研究将确定一个重要的沉积物扩散新机制，从而为增加对南极冰锋过程的理解开辟道路。基于现场的研究将包括：(1)使用ROV潜水器进行视频调查，以检测冰和锚，并研究冰川末端；(2)CTD剖面、水样和沉积物陷阱，研究扩散和沉积过程；(3)底部岩心记录这些过程。

This award is for support of a one-year Small Grant for Exploratory Research (SGER) to test an hypothesis that frazil ice and anchor ice form in glacial meltwater flowing into subpolar marine water and form deposits that may be distinguishable from deposits of temperate and polar glacial environments. The proposed study to search and document that frazil and anchor ice form at the termini of glaciers and play a role in sediment transport is high risk, but if successful, this study will have identified a significant new mechanism of sediment dispersal, thus leading the way to an increased understanding of ice-front processes in the Antarctic. The field-based study will consist of (1) video surveys with an ROV submersible to detect frazil and anchor ice and to study the glacier terminus, (2) CTD profiles, water samples and sediment traps to study processes of dispersal and sedimentation, and 3) bottom cores to document the record of these processes.