Hydrogeology in Cold Regions

寒冷地区，无论是在高山还是北极地区，由于气候变化，正在经历快速变暖和融化。我的研究重点是了解这些快速变暖系统中地下水的响应和反馈-这是一项复杂的任务，因为我们的实地数据有限，需要改进数值工具。概括地说，该建议是：1）进一步开发和使用具有动态冻融功能的新的地下水数值模型，以了解北极水文地质和永久冻土动力学; 2）研究前冰期地区的水文地质。 建议的数值模拟研究是使用一个新的地下水模型，我和一个同事已经开发出，结合动态冻结和融化，研究地下水的运动如何影响分布，和融化率，冻土。该模型将被用来模拟和预测育空地区河流域，一个大型的加拿大-美国河流系统下广泛的永久冻土沉积，将如何应对气候变化。 冰前水文地质研究的重点是了解高海拔山区的地下水。这项研究的重点是秘鲁的山脉，包括布兰卡山脉，目的是了解冰川控制地下水流动和储存的过程，并了解冰川迅速消退地区的水文和水资源的未来。 这项研究的结果对加拿大人来说很重要，因为加拿大几乎一半的土地都被永久冻土覆盖，加拿大西部的大部分水源来自山区冰川。该提案主要侧重于培养水文地质学研究生一级的高素质人员，具体应用于寒冷地区。这项研究的结果不仅会引起其他寒冷地区科学家的兴趣，也会引起工程师、水资源管理人员以及在寒冷地区生活和工作的人们的兴趣。

Cold regions, either in alpine or arctic settings, are undergoing rapid warming and thawing due to climate change. My research focuses on understanding the response and feedbacks of groundwater in these rapidly warming systems - a complex task as we have limited field data and a need for improved numerical tools. Broadly, this proposal is to 1) further develop and use a new numerical groundwater model with dynamic freeze-thaw functionality to understand arctic hydrogeology and permafrost dynamics and 2) study the hydrogeology of pro-glacial regions. The proposed numerical modeling research is to use a new groundwater model that myself and a colleague have developed that incorporates dynamic freezing and thawing to study how the movement of groundwater can affect the distribution, and rate of thaw, of permafrost. This model will be used to simulate and predict how the Yukon River Basin, a large Canada-USA river system underlain by extensive permafrost deposits, will respond to climate change. The pro-glacial hydrogeology research is focuses on understanding groundwater in high elevation mountain regions. The research, focused on mountain ranges in Peru, including the Cordillera Blanca, is to understand the processes the control the flow and storage of groundwater and to understand the future of hydrology and water resources in regions with rapidly receding glaciers. Findings from the proposed research are important for Canadians as almost half of Canada is underlain by permafrost, and much of the headwaters of western Canada's water supply is from mountain glaciers. The proposal is focused primarily on training highly qualified personal at the graduate student level in hydrogeology, with specific applications to cold regions. The results from the proposed research will be of interest not only to other cold regions scientists, but to engineers, water resource managers, and people who live and work in cold regions.