Temperature and heating induced temperature difference measurements from the sea ice mass balance buoy SIMBA 2020T60 ...

• Main Authors: Granskog, Mats A, Høyland, Knut Vilhelm, De La Torre, Pedro R, Divine, Dmitry V, Katlein, Christian, Itkin, Polona, Raphael, Ian, Olsen, Lasse Mørk
• Format: Article in Journal/Newspaper
• Language: English
• Published: PANGAEA 2020
• Subjects: Autonomous buoy; Ice mass balance; Temperature; Thermistor; SAMS Ice Mass Balance buoy; PS122/2; Polarstern; Coordinated Arctic Acoustic Thermoetry Experiment CAATEX; Current sea ice maps for Arctic and Antarctic meereisportal.de; Multidisciplinary drifting Observatory for the Study of Arctic Climate MOSAiC; Ridges - Safe HAVens for ice-associated Flora and Fauna in a Seasonally ice-covered Arctic OCean HAVOC; Antarc*; Antarctic; Arctic; Arctic Ocean; Sea ice
• Online Access: https://dx.doi.org/10.1594/pangaea.924269; https://doi.pangaea.de/10.1594/PANGAEA.924269

Temperature and heating-induced temperature differences were measured along a chain of thermistors. SIMBA 2020T60 (a.k.a. HAVOC 0101) is an autonomous instrument that was installed on drifting sea ice in the Arctic Ocean during the 2nd leg of MOSAiC in February 2020. The thermistor chain was 10m long and included 250 sensors with a regular spacing of 4cm. The resulting time series describes the evolution of temperature and temperature differences after two heating cycles of 30 and 120 s as a function of place, depth and time between 08 Jan 2020 and 22 Apr 2020 in sample intervals of 6 hours for temperature and 24 hours for temperature differences. The buoy was installed on the ridge crest known as SIRO.In addition to temperature, geographic position, barometric pressure, air temperature measured 1m over the ice level, tilt and compass were measured. The data set has been processed as follows: obvious inconsistencies (missing values) have been removed and unrealistic values in position have been replaced by ...