Dendrohydrological reconstructions of stream flow from the Snare River basin, NWT to inform management decisions concerning power generation

在西北地区南部，2014年和2015年的水位和流量显著下降。这些流量的下降损害了整个地区的水力发电，特别是在为耶洛奈夫市供电的斯奈尔河和耶洛奈夫河流域。损失的水力发电导致领土政府大量超支近5 000万美元，用于购买柴油以补充损失的水力发电。由于该地区的仪器气候记录只能追溯到1943年，因此很难为过去两年的极端低流量进行规划。河流流量和湖泊水位的记录同样短，有些记录非常不连续。因此，很难确定这些发电系统的自然变率范围内使用短期气候和水文仪器记录。我们建议开发代理数据源，

Across the southern Northwest Territories, water levels and stream flows declined significantly in 2014 and 2015. These declines in flow impaired hydroelectric power generation across the region, especially in the Snare and Yellowknife river basins that supply electricity to the City of Yellowknife. The lost hydroelectric power generation led to substantial over expenditures of nearly $50 million by the Territorial Government to purchase diesel fuel to supplement the lost hydroelectric power generation. Planning for extreme low flows such as those during the past two years is difficult since instrumental climate records for this region only extend back in time to 1943. Records of stream flow and lake levels are equally short, and some records are very discontinuous. Therefore, it is difficult to determine the natural range of variability in these power generating systems using the short instrumental records of climate and hydrology. We propose to develop proxy data sources to extend