Temperature data recorded with Thermochron iButton data loggers in 2018 in Hengill, a sub-arctic geothermal area in SW-Iceland (64°03’N; 21°18’W, ~360 m.a.s.l.)

This data set includes temperature data recorded with Thermochron iButton data loggers in 2018. The data comprises 40 pairs of data loggers of which one was located belowground (buried at 10 cm depth) in order to measure soil temperature, and one was located aboveground (10 cm aboveground, on the top of white plastic tubes stuck in the ground, and covered with grey duct tape) in order to measure air temperature. The loggers recorded temperature every 3 hours from October 2017 until June 5th, 2018. The data also includes a measure of instant soil temperature measured in May at the same point where the pair of loggers was located.本数据集包含2018年使用Thermochron iButton数据记录器（Thermochron iButton data loggers）采集的温度数据。该数据集共包含40组数据记录器对，每组对中一台埋设于地下10厘米深度处以测量土壤温度，另一台安装于插入地面的白色塑料管顶端（距地面10厘米高度，并用灰色布基胶带包裹）以测量空气温度。所有记录器自2017年10月起至2018年6月5日止，每3小时采集一次温度数据。此外，数据集还包含2018年5月在各记录器对布设的同一点位实测的即时土壤温度数据。