Understand and forecast long-term variations of in-situ geophysical and geomechanical characteristics of degrading permafrost in the Arctic - continuously observed ground temperatures, Utqiagvik, Alaska, 2023-2024

This project is part of the National Science Foundation (NSF) United States Department of Agriculture-National Institute of Food and Agriculture (NIFA)-jointly-funded Signals in the Soil (SitS) program whose goal is to support collaborative research on dynamic soil processes and soil formation through advances in sensor systems and predictive, process-based and mechanistic modeling.
This dataset provides ground temperature data in the active layer and near-surface permafrost to provide a baseline for assessing the future changes in the near-surface temperatures in the natural environment at Utqiagvik, Alaska. Collected ground temperature data are intended to help researchers ground-truth measurements of geophysical and geomechanical properties measured using a 1.5-kilometer-long fiber-optic distributed acoustic sensing array. The project outcomes will enable realistic evaluation of the performances of infrastructure in Arctic Alaska and improve the design of more robust infrastructure in the Arctic.

本项目隶属于美国国家科学基金会（NSF）与美国农业部-国家食品与农业研究所（NIFA）联合资助的“土壤信号（Signals in the Soil, SitS）”计划，该计划旨在通过传感器系统的技术进步以及预测性、基于过程和机制性建模，支持关于动态土壤过程与土壤形成的协同研究。
本数据集提供活动层（active layer）与近地表永久冻土（permafrost）的地温数据，为评估阿拉斯加乌特恰维克自然环境中近地表温度的未来变化奠定基线。所采集的地温数据旨在协助研究人员对通过1.5公里长光纤分布式声学传感阵列（fiber-optic distributed acoustic sensing array）测得的地球物理与地质力学特性进行地面实况（ground-truth）验证。
该项目成果将使阿拉斯加北极地区基础设施性能的真实评估成为可能，并助力北极地区更坚固基础设施的设计优化。