Heating induced temperature difference measurements from SIMBA-type sea ice mass balance buoy 2022T98: 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 2022T98 (original name UIT_0301R) installed on drifting sea ice in the Arctic Ocean during the expedition Charcot cruise in 2022. Data is available between 2022-08-27 13:00:00 and 2023-02-09 02:01:00. 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 Sea Ice Physics @ AWI (AWI_SeaIce).

本数据集通过搭载数米长热敏电阻链的SIMBA型海冰质量平衡浮标，对大气、海冰及海洋中的温度与加热诱导温差廓线开展了观测。本次数据集由2022年夏科特（Charcot）科考航次期间部署于北冰洋漂流海冰上的SIMBA 2022T98浮标（原名称为UIT_0301R）采集所得，其有效观测时段为2022年8月27日13:00:00至2023年2月9日02:01:00。该浮标搭载的热敏电阻链为可变长度型，最长可达5米，共集成241个传感器，传感器间规则间距为2厘米。由此生成的时间序列，记录了以空间位置、深度和时间为自变量的120秒加热周期内，30秒与120秒分辨率下的温度及温差演化过程。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频率最常设置为每6小时一次，温差数据则为每24小时一次。除温度与地理位置信息外，本数据集还涵盖了气压、约1米高度处的气温、仪器倾斜度以及罗盘航向等观测参数。本数据集已完成预处理：已剔除存在明显不一致（含缺失值）以及GPS位置不合理的观测数据。该浮标作为"海冰物理@AWI"（AWI_SeaIce）项目的组成部分完成部署。