Heating induced temperature difference measurements from SIMBA-type sea ice mass balance buoy 2019T71: 120 s after the start of the heating cycle

Temperature and heating-induced temperature difference profiles were measured through the atmosphere, sea ice, and ocean using a SIMBA-type sea ice mass balance buoy equipped with a several meter long thermistor chain. The present dataset was recorded by SIMBA 2019T71 (original name FMI6-04) installed on drifting sea ice in the Central Arctic Ocean during the expedition Polarstern PS122 (MOSAiC) in 2019/20. Data is available between 2019-10-11 03:00:00 and 2019-10-17 16:00:00. The thermistor chain was Variable 5 m long and included 241 sensors with a regular spacing of 2 cm. The resulting time series includes the evolution of temperature and temperature differences at 30 s and 120 s during a heating cycle of 120 s as a function of location, depth and time. The sampling intervals were usually between hourly and daily, but were most frequently configured to 6 hours for temperature, and 24 hours for temperature differences. In addition to temperatures and geographic location, barometric pressure, ~1 m air temperature, instrument tilt, and compass heading were measured. The present dataset was processed as follows: obvious inconsistencies (missing values) and unrealistic values of GPS position have been removed. This instrument was deployed as part of the project FMI.

本数据集通过搭载数米长热敏电阻链（thermistor chain）的SIMBA型海冰质量平衡浮标（SIMBA-type sea ice mass balance buoy），对大气、海冰及海洋中的温度与加热诱发温差剖面进行了测量。本次数据集由搭载于北极中央大洋流动海冰之上的SIMBA 2019T71（原编号FMI6-04）记录，该设备部署于2019/2020年度的极星号（Polarstern）PS122航次（MOSAiC）科考期间。数据集的有效时间范围为2019年10月11日03:00:00至2019年10月17日16:00:00。该热敏电阻链总长约5米，共包含241个传感器，传感器间距固定为2厘米。所生成的时间序列记录了120秒加热周期内，30秒与120秒时刻的温度及温差随位置、深度与时间的演化过程。采样间隔通常介于每小时至每日之间，其中温度数据的采样间隔多配置为6小时，温差数据的采样间隔多配置为24小时。除温度与地理位置数据外，本数据集还包含气压、约1米高度处的气温、仪器倾斜度及罗盘航向等观测参数。本次数据集已按如下流程进行预处理：已剔除明显的异常值（缺失值）与不符合实际的GPS位置数据。本设备作为FMI项目的一部分完成部署。