Temperature after the cooling cycle from the sea ice mass balance buoy DTC54 during MOSAiC 2019/2020

Temperature and heating-induced temperature were measured along a chain of thermistors. Digital Thermistor Chain DTC54 is an autonomous instrument that was installed on drifting sea ice in the Arctic Ocean during the MOSAiC expedition on 01 September 2020. The thermistor chain was 5.12 m long and included sensors with a regular spacing of 2 cm. The initial ice thickness was 1.76 m, the snow thickness was 0.00 m, and the pond depth was 0.18 m. The resulting time series describes the evolution of temperature during the heating cycle of 20 s and after the heating cycle during the following 40 s as a function of geographic position (GPS), depth, and time between 01 September 2020 and 20 September 2020 in sample intervals of 6 hours. It also contains manually estimated positions of air-snow, snow-ice, and ice-water interfaces. The DTC was installed in the ponded ice next to the ridge and the snow buoy 2020S108: doi:10.1594/PANGAEA.937176.

沿热敏电阻链完成了温度与加热诱导温度的测量。数字热敏电阻链DTC54（Digital Thermistor Chain DTC54）是一套自主式观测仪器，于2020年9月1日随MOSAiC科考航次部署于北冰洋漂流海冰之上；该热敏电阻链总长5.12米，传感器布设间距固定为2厘米。初始状态下海冰厚度为1.76米，积雪厚度为0.00米，融池深度为0.18米。所得时间序列以地理位置（GPS）、深度及时间为变量，刻画了20秒加热周期内以及加热结束后后续40秒内的温度演化过程，观测时段为2020年9月1日至2020年9月20日，采样间隔为6小时；该数据集还包含人工估算得到的气-雪界面、雪-冰界面与冰-水界面的位置信息。本次部署的DTC54设置于海脊旁侧的融池海冰中，毗邻雪浮标2020S108：doi:10.1594/PANGAEA.937176。