Influence of the Active Layer and Snow Cover on the Thermal Regime of Permafrost

多年冻土温度是一个非常敏感的指标， 气候变化 变化太小，无法通过连续检测 表面能量收支的测量是清晰和可靠的 冻土温度剖面的变化。 该奖项支持 合理利用冻土温度的研究 数据和改善目前的解释永冻土 温度曲线 这些任务需要更好地理解 活动层和积雪对热辐射的影响 永久冻土区 该研究计划包括实地和 实验室测量，解释和模拟热 永久冻土对气候变化的反应。 这项研究将 在运输道路沿线沿着的四个既定地点进行， 布鲁克斯山脉和普鲁德霍湾。 测量将包括每日 温度在十一个水平从空气1/2米或更多进入 多年冻土，年冻土温度到80米深处， 现场和实验室测量的热性能和其他性能 用于预测各级温度的数值模型。 这种持续的研究努力是必要的，以开发一种 了解已经发生的气候变化， 发生在阿拉斯加和北极的永久冻土区 地区

Permafrost temperatures are an extremely sensitive indicator of climatic change. Changes too small to be detected by continuous measurements of the surface energy budget occur as clear and robust changes in permafrost temperature profiles. This award supports research to allow rational utilization of permafrost temperature data and to improve current interpretations of permafrost temperature profiles. These tasks require a better understanding of the influence of the active layer and snow cover on the thermal regime of permafrost. The research program consists of field and laboratory measurements, interpretation, and modeling the thermal response of permafrost to changes in climate. This research will be conducted at four established sites along the Haul Road between the Brooks Range and Prudhoe Bay. Measurements will include daily temperatures at eleven levels from the air 1/2m or more into the permafrost, annual permafrost temperatures to depths of 80m, in situ and laboratory measurements of thermal and other properties of the numerical model for predicting temperatures at all levels. This continuing research effort is necessary to develop an understanding of climatic change that has occurred and may be occurring in the permafrost areas of Alaska and the north polar region.