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Lei, Ruibo; Cheng, Bin; Hoppmann, Mario; Nicolaus, Marcel; Regnery, Julia (2023): Temperature and heating induced temperature difference measurements from SIMBA-type sea ice mass balance buoy 2020T78, deployed during MOSAiC 2020/21 [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.958438

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Abstract:
Temperature and heating-induced temperature differences were measured along a chain of thermistors. SIMBA 2020T78 (a.k.a. PRIC_10_06, IRIDIUM number 300234068529570) is an autonomous instrument that was installed on drifting sea ice in the Arctic Ocean during the 5th leg of the Multidisciplinary drifting Observatory for the Study of Arctic Climate (MOSAiC) in August 2020. The buoy was deployed at the CO3 of MOSAiC. The thermistor chain was 5 m long and included 241 sensors with a regular spacing of 2cm. The 40th sensor from the top was set at the initial interface between snow and ice. 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 depth and time between 24 August 2020 and 26 February 2021 in sample intervals of 6 hours for temperature and 24 hours for temperature differences. The near-surface air temperature was measured at 1 m over the ice surface. In addition to temperature, geographic position, barometric pressure, tilt and compass were measured.
Keyword(s):
Arctic Ocean; mass balance; MOSAiC-ICE; Sea ice; SIMBA; Temperature
Related to:
Lei, Ruibo; Hoppmann, Mario; Cheng, Bin; Nicolaus, Marcel; Zhang, Fanyi; Rabe, Benjamin; Lin, Long; Regnery, Julia; Perovich, Donald K (in review): Sea ice in the Arctic Transpolar Drift in 2020/21: thermodynamic evolution of different ice types. https://doi.org/10.5194/tc-2023-25
Funding:
Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven (AWI), grant/award no. AFMOSAiC-1_00: Multidisciplinary drifting Observatory for the Study of Arctic Climate
Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven (AWI), grant/award no. AWI_PS122_00: Multidisciplinary drifting Observatory for the Study of Arctic Climate / MOSAiC
National Natural Science Foundation of China (NSFC), grant/award no. 41722605
National Natural Science Foundation of China (NSFC), grant/award no. 41976219
Coverage:
Median Latitude: 87.711638 * Median Longitude: 35.244865 * South-bound Latitude: 86.104800 * West-bound Longitude: -28.371563 * North-bound Latitude: 89.596360 * East-bound Longitude: 120.885106
Date/Time Start: 2020-08-24T04:30:00 * Date/Time End: 2021-02-26T04:30:00
Event(s):
PS122/5_58-56 (2020T78, PRIC_10_06) * Latitude Start: 87.772350 * Longitude Start: 106.277440 * Latitude End: 86.119880 * Longitude End: -26.328290 * Date/Time Start: 2020-08-23T17:09:00 * Date/Time End: 2021-02-26T04:31:11 * O2A Registry URI: registry.o2a-data.de * Location: Arctic Ocean * Campaign: PS122/5 (MOSAiC20192020) * Basis: Polarstern * Method/Device: SAMS Ice Mass Balance buoy (SIMBA) * Comment: IRIDIUM number 300234068529570; Total failure 2021-02-26
Comment:
The data set has been processed and contains quality flags for different kinds for erroneous data. Flag values are the sum of individual error codes. The value of 0 refers to no error. Quality flag, position: The geographic position is flagged +1 if the drift velocity, as derived from the GPS longitude and latitude, exceeds a threshold of 10 deg latitude or 50 deg longitude per time step; +2 if the position exceeds extreme values, such as longitude > 360 deg; +4 if the position is exactly 0.0.
Size:
4 datasets

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