Thermal plume transport, remediation, and utilization in groundwater

我的研究计划的目标是开发新的方法，量化和补救的热影响，从地下水位以下的骨料和岩石提取对冷水流。 重点将放在补救方法上，利用充满水的抽水坑产生的含水层热能为当地建筑物和居民区供暖和制冷。 这样，不仅开采地点附近的冷水生态系统和渔业将得到保护，而且补救系统将提供可持续的能源。 目前，我们即将完成一项前所未有的为期10年的实地和数值模拟评估，以量化从一个集料坑通过一个无压冰川冰水含水层产生的热羽流的持久性。 我们的研究结果表明，交替的温暖和凉爽的羽流坚持在含水层11个月，迁移到250米的梯度，如果没有提供足够的分离距离，温度变化，甚至2至3摄氏度的潜流区可能会产生不利影响的大型无脊椎动物群落和现任溪鳟种群。

The objective of my research program is to develop new methods of quantifying and remediating thermal impacts from below-water-table aggregate and rock extraction on cool-water streams. The focus will be on remedial methods that utilize the aquifer thermal energy generated from the water filled extraction pits for heating and cooling local buildings and neighbourhoods. In this way not only will cool-water ecosystems and fisheries be protected adjacent to extraction sites but the remedial systems will provide a sustainable energy source. Currently, we are nearing completion of an unprecedented 10 year field and numerical modelling assessment to quantify the persistence of thermal plumes emanating from an aggregate pit through an unconfined, glacial outwash aquifer. Our results show that alternating warm and cool plumes persist in the aquifer for 11 months, migrate up to 250 m down gradient, and if sufficient separation distances are not provided, temperature changes of even 2 to 3 degrees C in the hyporheic zone may adversely affect the macroinvertebrate community and incumbent brook trout populations.