Temperature of the ground, measured near surface, at Etna volcano (N-E Rift), Italy, hourly recorded in situ from 2009 to 2012@en

The dataset consists of temperature measurements of the porous ground (loose volcanic breccia). The temperature data were acquired for 3 years, from 30 September 2009 to 14 September 2012. Name of the station BTL, site location Latitude: 37.780675° Longitude: 15.008787°. BTL station was located at a distance of about 120 m (meters) from the fumarole vents that developed at an altitude of about 2470 m a.s.l. (above sea level) on Mt. Etna's North-East Rift. Approximate location of the fumarole vents: 33S 500740E; 4181593N. The volcanic feature that suggested the label for the monitoring station (BTL) is the neighbor “Bottoniera Line of craters”, on the northern flank of Etna. The temperature data have been recorded on a vertical line of four PT1000 sensors (temperature range of –40 °C to 150 °C, accuracy ±0.2 °C, resolution ±0.1 °C); the distance between each sensor was 0.15 m, thus the total depth of the monitored profile was 0.60 meter. A data-logger (model EBRO EBI 2T-313 four-channel) protected by a watertight case, acquired and stored data every hour, for about three years. The stored data file was downloaded once, at the end of the monitoring period, and none touched the probes in the monitored site during the monitoring period of time. The uploaded file includes all the raw measurements for the temperature profiles showing a linear correlation (R2) higher than 0.990 because these have been used by the author for further evaluations of the heat flux from the ground, possibly related to the volcanic activity (Diliberto et al., 2018 (doi:10.1007/s00445-018-1198-0); Diliberto & Gennaro, 2022(doi:10.3390/app12094471)). The profiles of temperature showing a not ideal linear fitting (R2 lower than 0.990) have been filtered out from the dataset.本数据集涵盖多孔地面（松散火山角砾岩）的温度测量数据。数据采集周期为3年，自2009年9月30日起至2012年9月14日止。监测站编号为BTL，站点坐标为纬度37.780675°、经度15.008787°。BTL监测站距离埃特纳火山（Mt. Etna）东北裂谷海拔约2470米处发育的火山喷气孔约120米。该喷气孔的近似坐标为33S 500740E；4181593N。该监测站的命名源自其邻近的埃特纳火山北坡「博托尼埃拉火山口链（Bottoniera Line of craters）」。温度数据通过垂直排布的4台PT1000温度传感器（PT1000）采集，该传感器测温范围为–40 °C至150 °C，精度为±0.2 °C，分辨率为±0.1 °C；传感器间距为0.15 m，因此监测剖面总深度为0.60 m。采用搭载防水外壳的数据记录仪（型号为EBRO EBI 2T-313四通道型），每小时采集并存储一次数据，采集时长约3年。监测周期结束时仅下载过一次存储的数据文件，整个监测期间未有人触碰过监测点位的传感器探头。上传的数据集包含所有温度剖面的原始测量数据，这些剖面的线性相关系数（R²）均高于0.990——作者曾利用这些数据开展与火山活动相关的地表热通量评估研究（Diliberto等，2018，doi:10.1007/s00445-018-1198-0；Diliberto & Gennaro，2022，doi:10.3390/app12094471）。本数据集已剔除线性拟合度不佳（R²低于0.990）的温度剖面数据。