"GSA Field Forum- "Glaciohydraulic Supercooling, Freeze-on, Stratified Basal Ice and Deformable Till Beds": Matanuska Glacier, Alaska"

该奖项将支持几位外国科学家和美国研究生参加首届美国地质学会野外会议。本次会议的目的是介绍和讨论在温带冰川上运行的一个重要的、新的碎片夹带和运输过程。阿拉斯加马塔努斯卡冰川正在发生冰川水力过冷和相关的冰生长(冰川和锚冰梯田)以及碎片夹带的理论已经得到了明确的证明。它还表明，厚厚的、充满碎片的层状基冰是最近出现的，与过冷、冻结过程直接相关。此外，马利斯皮纳号和白令号目前都处于过冷和冻结状态。冻结进程的重要性在于，它提供了一种重要的新的碎片夹带和运输机制。不幸的是，只有首席调查员研究小组的工作人员曾亲眼目睹过这一新机制的实地证据。因此，他们希望这次实地会议将产生关于冰川-水力过冷的性质和重要性以及相关的碎片夹带过程的讨论。他们还相信，在冰川学家接触到这一过程的现场证据后，这一过程将被社区接受，并被纳入碎片夹带和运输的模型中，就像过去十年影响该领域的“变形床理论”一样。

AbstractOPP 00-01503EvensonThis award will support the participation of several foreign scientists and U.S. graduate students to attend the inaugural Geological Society of America field conference. This conference is designated to introduce, and generate discussion of an important, new debris entrainment and transport process operating at temperate glaciers. The theory that glaciohydraulic supercooling and the associated ice growth (frazil and anchor ice terraces) and debris entrainment is occurring at the Matanuska Glacier, Alaska has clearly been demonstrated. It has also been demonstrated that thick, debris-laden, stratified basal ice is recent and is directly related to the supercooling, freeze-on process. In addition, both the Malispina and Bering are currently experiencing supercooling and freeze-on. The importance of the freeze-on process is that it provides a significant new debris entrainment and transport mechanism. Unfortunately, only those working in the Principal Investigator's research group have ever witnessed the field evidence for this new mechanism. Therefore, they hope that this field conference will engender discussions on the nature and importance of glaciohydraulic supercooling and the associated debris entrainment processes. They are also confident that after the glaciologists are exposed to the field evidence for this process, that it will be embraced by the community and integrated into models of debris entrainment and transport in the same way that "deformable bed theory" impacted the field in the last decade.