Collaborative Research: A New Method of Observing Variability in Freshwater Discharge from Arctic and Antarctic Marine-Terminating Glaciers using Passive Acoustic Measurements

阿拉斯加大学费尔班克斯分校科罗拉多大学博尔德分校杰弗里·尼斯图恩华盛顿大学提案来自阿拉斯加费尔班克斯大学、科罗拉多大学博尔德分校和华盛顿大学的研究人员已获得资金，用于测试一种测量次冰川排放水的大小和变化性的新方法。了解这种排放是我们对冰盖和冰川质量平衡知识的最大差距之一，但我们目前缺乏测量排放的方法。这些研究人员将使用湍流上升流、气泡形成和沉积物碰撞的声学信号来量化冰下淡水排放的规模和可变性。这项研究将由蒙大拿州立大学S科学与自然历史电影制作项目的一名电影制作人记录下来。

Erin C PettitUnviersity of Alaska FairbanksShad R O?NeelUniversity of Colorado at BoulderJeffrey A NystuenUniversity of WashingtonProposal #0806143Investigators from the University of Alaska Fairbanks, the University of Colorado at Boulder, and the University of Washington have received funding to test a novel method for measuring the magnitude and variability of subglacially discharged water. Understanding such discharges is one of the greatest gaps in our knowledge of ice sheet and glacier mass balance, but we currently lack a method of measuring the discharges. These investigators will use acoustic signals from turbulent upwelling, bubble formation, and sediment collisions to quantify the magnitude and variability of subglacial freshwater discharge. The research will be documented by a filmmaker from Montana State University?s Science and Natural History Filmmaking program.