Understand and forecast long-term variations of in-situ geophysical and geomechanical characteristics of degrading permafrost in the Arctic - continuously observed ground temperatures using Distributed Temperature Sensing, Utqiagvik, Alaska, 2021-2024

### Access
Files be accessed and downloaded from the directory via: [http://arcticdata.io/data/10.18739/A2736M43B](http://arcticdata.io/data/10.18739/A2736M43B).

### Overview
This dataset is part of the outcomes of a collaborative project funded by the National Science Foundation (NSF) Signals in the Soil (SitS) program. This project focused on dynamic soil processes and the geophysical and geomechanical characterization of permafrost. This dataset focused long-term permafrost monitoring using distributed temperature sensing (DTS) systems. The dataset provides ground temperature profiles from the active layer to the near-surface permafrost in Utqiaġvik, Alaska from 2021 to 2024, establishing a baseline for evaluating future changes in permafrost thermal conditions under natural environmental settings. Temperature measurements were collected using DTS technology along a 2-kilometer-long fiber-optic cable, co-located with a distributed acoustic sensing (DAS) array. These DTS-derived temperature profiles offer essential ground-truth data to support the interpretation of geophysical and geomechanical properties derived from DAS measurements. The outcomes of this project support realistic evaluations of infrastructure performance in Arctic Alaska and inform the design of more resilient and adaptive infrastructure systems in permafrost regions.