Temperature before the heating cycle from the sea ice mass balance buoy DTC20 during MOSAiC 2019/2020

• Main Authors: Salganik, Evgenii, Hoppmann, Mario, Scholz, Daniel, Itkin, Polona, Katlein, Christian, Divine, Dmitry V, Raphael, Ian
• Format: Dataset
• Language: English
• Published: PANGAEA 2023
• Subjects: autonomous platform; buoy; DATE/TIME; Digital thermistor chain; DTC; DTC20; Ice mass balance; LATITUDE; LONGITUDE; MOSAiC; MOSAiC20192020; Multidisciplinary drifting Observatory for the Study of Arctic Climate; Polarstern; Position; PS122/1; PS122/1_1-236; Temperature; technical; Arctic; Arctic Ocean; Sea ice
• Online Access: https://doi.pangaea.de/10.1594/PANGAEA.962451; https://doi.org/10.1594/PANGAEA.962451

Temperature and heating-induced temperature were measured along a chain of thermistors. Digital Thermistor Chain DTC20 is an autonomous instrument that was installed on drifting sea ice in the Arctic Ocean during the MOSAiC expedition on 8 January 2020. The thermistor chain was 4.16 m long and included sensors with a regular spacing of 2 cm. 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 22 November 2019 and 15 July 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 undeformed second-year ice along Transect North: doi:10.1594/PANGAEA.937781.