Collaborative Proposal: Modeling Sediment Production from Glaciers off south-central Alaska during Quaternary Climate Oscillations

PI将模拟过去125,000年来阿拉斯加-阿留申俯冲边缘冰川沉积物的生产、运输和沉积。将使用缅因州大学冰盖模型(UMISM)模拟科迪勒兰冰盖和地壳对冰荷载的响应。USISM的解决方案将与现有的泥沙数据集和冰川动力侵蚀规律相关联，以确定侵蚀和泥沙分布的时间和空间模式。将收集悬浮物样品和岩石强度的现场测量，并将其与建模工作结合起来。更广泛的影响：这项研究的社会影响最终包括更好地了解这一活跃边缘的地震危害。该项目将涉及研究生和本科生。将简化针对K12/普通受众的在线实验学习模块的数据和模型。模型结果将通过缅因州大学的网络服务器提供。

The PIs will model the production, transport, and deposition of glacial sediments at the Alaska-Aleutian subducting margin during the last 125,000 years. The Cordilleran Ice Sheet and crustal response to ice loading will be modeled using the University of Maine Ice Sheet Model (UMISM). USISM solutions will be related to existing sediment datasets and glacial power erosion laws to determine temporal and spatial patterns of erosion and sediment distribution. Suspended sediment samples and field measurements of rock strength will be collected and integrated with the modeling efforts. Broader Impacts:The societal impacts of the study ultimately include a better understanding of earthquake hazards along this active margin. The project will involve graduate and undergraduate students. Data and models will be simplified for online experimental learning modules targeted at K12/general audiences. Model results will be made available through the U Maine web server.