Heating induced temperature difference measurements from SIMBA-type sea ice mass balance buoy 2014T17: 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 2014T17 (original name FMI_12) installed on landfast sea ice in Atka Bay, Antarctica, during the expedition Polarstern PS89 (ANT30/2) in 2014/15. Data is available between 2014-12-27 15:00:00 and 2015-07-15 02:55:00. The thermistor chain was Variable 5 m long and included 240 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 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 project FMI.

本研究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导温度差廓线开展测量。本数据集由编号为SIMBA 2014T17（原编号FMI_12）的浮标记录，该浮标部署于南极洲阿特卡湾的固定海冰之上，数据采集随2014/15年度极星号（Polarstern）PS89航次（ANT30/2）的科考活动完成。数据集的有效时间范围为2014年12月27日15:00至2015年7月15日02:55。该热敏电阻链总长5米，包含240个传感器，传感器间距固定为2厘米。所生成的时间序列涵盖了温度与温度差随位置、深度及时间的演化过程，其中加热周期为120秒，采样时刻包含30秒与120秒两个节点。采样间隔通常介于每小时至每日区间内，其中温度数据的采样频次多设置为6小时一次，温度差数据的采样频次多设置为24小时一次。除温度数据外，该浮标还同步采集了地理坐标信息。本数据集已完成预处理流程：已剔除存在明显不一致的记录（含缺失值）以及不符合实际情况的GPS位置异常值。本仪器作为FMI项目的组成部分完成部署。