Hydrological and geomorphic controls over permafrost landscape degradation

我的研究小组致力于确定极地地区气候和永久冻土变化的过程和影响。 我们结合联合收割机水文，地貌，遥感和建模方法，以确定不同的水文条件如何导致高土壤孔隙水压力，并预测这些条件将导致土地不稳定和干扰。 多年冻土扰动是加拿大北方的一个主要危害，并影响社区和工业基础设施。 我的小组进行的研究是必要的，以支持规划和设计，将减少永久冻土干扰对土地和水的影响。这项研究计划的目的是显着推进我们的基本知识，气候，水和土壤特性如何相互作用，导致冻土景观不稳定，并提高我们的土地空间分布的理解容易受到干扰。 这项研究需要一种综合的方法，使用有针对性的实地研究，使用仪器和采样来跟踪土壤中水的运动，并测量土壤冰的季节性积累和融化。 该数据用于确定导致高土壤孔隙水压力的天气、土壤和地形因素，高土壤孔隙水压力可能导致扰动。我的研究计划还将使用先进的卫星和飞机遥感技术，有效地估计解冻和推断土壤冰含量在广大地区。 将这些数据集结合起来，模拟土壤扰动敏感性的空间格局，并通过对过去扰动的实地测绘加以验证。该计划代表了一种创新的综合研究方法，以提高我们对导致永久冻土扰动和土地不稳定的过程和条件的理解，并将产生新的测绘策略，可供土地管理人员使用，以最大限度地减少基础设施风险并避免环境影响。拟议的方案将培训13名HQP，并为他们提供环境仪器，采样，绘图和统计建模技术方面的宝贵技术专长。 此外，他们将获得广泛的外地规划、许可和管理技能方面的培训，并获得在偏远外地工作的丰富经验。学生将准备在环境和土地管理，资源开发和危害评估领域，以及在应用和基础研究中发挥领导作用。

My research group works to determine the processes and impacts associated with climate and permafrost change in polar regions. We combine hydrological, geomorphological, remote sensing and modelling approaches to determine how different hydrological conditions lead to high soil pore water pressure and predict where these conditions will cause land instability and disturbance. Permafrost disturbance is a major hazard in northern Canada, and affects community and industry infrastructure. The research carried out my group is necessary to support planning and design that will to reduce the impact of permafrost disturbance on the land and water.***The objective of this research program is to significantly advance our fundamental knowledge of how climate, water and soil properties interact to cause permafrost landscape instability, and to improve our understanding of the spatial distribution of land susceptible to disturbance. This research requires an integrated approach that uses focused field studies with instruments and sampling to track the movement of water in the soil and measure the seasonal accumulation and thaw of soil ice. This data is used to determine the weather, soil and terrain factors that lead to high soil pore water pressure that can result in disturbance. My research program will also use advanced satellite and aircraft remote sensing techniques to efficiently estimate thaw and infer soil ice content across vast areas. These data sets are combined to model the spatial pattern of soil disturbance susceptibility and verified with field mapping of past disturbances.***This program represents an innovative integrated research approach to improve our understanding of the processes and conditions that result in permafrost disturbance and land instability, and will also generate new mapping strategies that can be utilized by land managers to minimize risk to infrastructure and avoid environmental impacts.***The proposed program will train 13 HQP and provide them with invaluable technical expertise with environmental instrumentation, sampling, mapping and statistical modelling techniques. Additionally, they will obtain training in a wide range of field planning, permitting and management skills and gain extensive experience working in remote field settings. Students will be prepared to take on leadership roles in environmental and land management, resource development and hazard assessment fields, as well as in applied and basic research.**