Summary data of spatiotemporally continuous temperature monitoring using optical fibers (Loop2) in the internal forest areas from 2016 to 2019

A fibre-optic DTS (distributed temperature sensing) system using Raman-scattering optical time domain reflectometry was deployed to monitor a boreal forest research site in the interior of Alaska. Surface temperatures range between -40 C in winter and 30 C in summer at this site. A total of 5.4 km of fibre-optic cable sensor (multi-mode, GI50/125, dual-core, outer diameter : 4.0mm, Armored FO Cable. Manufactured by Kaiphone Communication, Taiwan/China) was installed to monitor ground temperatures across the landscape at high resolution (0.5m intervals at every 30 min). Measurements started in July 2016. This dataset only contains the monthly and annual averages until January 2019.本研究采用搭载拉曼散射型光时域反射仪的光纤分布式温度传感（distributed temperature sensing, DTS）系统，对位于阿拉斯加内陆的一处北方针叶林研究站点开展温度监测工作。该站点地表温度区间为冬季-40℃至夏季30℃。本次部署总长5.4km的光纤电缆传感器（多模GI50/125、双芯、外径4.0mm铠装光纤电缆，由中国台湾凯丰通信（Kaiphone Communication）制造），以高分辨率对该区域地表温度进行监测，采样间隔为0.5m，每30分钟完成一次数据采集。监测工作于2016年7月正式启动，本数据集仅包含截至2019年1月的月度及年度平均温度数据。