Temperature and heating induced temperature difference measurements from the sea ice mass balance buoy DTC25 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: Arctic Ocean; autonomous platform; buoy; Digital thermistor chain; DTC; DTC25; Ice mass balance; MOSAiC; MOSAiC20192020; Multidisciplinary drifting Observatory for the Study of Arctic Climate; Polarstern; PS122/2; PS122/2_14-320; PS122/3; PS122/3_28-83; Temperature; Arctic; Sea ice
• Online Access: https://doi.pangaea.de/10.1594/PANGAEA.960620; https://doi.org/10.1594/PANGAEA.960620

Temperature and heating-induced temperature were measured along a chain of thermistors. Digital Thermistor Chain DTC25 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 5.12 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 8 January 2020 and 23 March 2020 in sample intervals of 6 hours. It also contains manually estimated position of air-snow, snow-ice, and ice-water interfaces. The DTC was installed in Fort Ridge towards the level first-year ice. Ice mass balance SIMBA 2020T60 was installed at the Fort Ridge: doi:10.1594/PANGAEA.924269.