Temperature and heating induced temperature difference measurements from SIMBA-type sea ice mass balance buoy 2020T74, deployed during MOSAiC 2019/20

DOI

Temperature and heating-induced temperature differences were measured along a chain of thermistors. SIMBA 2020T74 (a.k.a. PRIC_10_02, IRIDIUM number 300234068225520) is an autonomous instrument that was installed on drifting sea ice in the Arctic Ocean during the 3rd leg of the Multidisciplinary drifting Observatory for the Study of Arctic Climate (MOSAiC) in April 2020. The buoy was deployed at the site with about 2 km from the ship with initial thicknesses of snow and ice of 0.08 and 1.70 m, respectively, on 4 April 2020. The thermistor chain was 5 m long and included 241 sensors with a regular spacing of 2 cm. The depths for the sensors are 98 to -380 cm, referring to the initial interface between snow and ice. The last sensor was used to measure the air temperature at 1 m above the initial snow surface. 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 4 April 2020 and 7 August 2020 in sample intervals of 6 hours for temperature and 24 hours for temperature differences. In addition to temperature, geographic position, barometric pressure, tilt and compass were measured.

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.

Identifier
DOI https://doi.org/10.1594/PANGAEA.940692
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.940692
Provenance
Creator Lei, Ruibo ORCID logo; Hutchings, Jennifer K; Cheng, Bin ORCID logo; Hoppmann, Mario ORCID logo
Publisher PANGAEA
Publication Year 2022
Funding Reference Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven https://doi.org/10.13039/501100003207 Crossref Funder ID AFMOSAiC-1_00 Multidisciplinary drifting Observatory for the Study of Arctic Climate; Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven https://doi.org/10.13039/501100003207 Crossref Funder ID AWI_PS122_00 Multidisciplinary drifting Observatory for the Study of Arctic Climate / MOSAiC; National Key Research and Development Program of China https://doi.org/10.13039/501100012166 Crossref Funder ID 2018YFA0605903 ; National Natural Science Foundation of China https://doi.org/10.13039/501100001809 Crossref Funder ID 41722605 ; National Natural Science Foundation of China https://doi.org/10.13039/501100001809 Crossref Funder ID 41976219
Rights Creative Commons Attribution 4.0 International; https://creativecommons.org/licenses/by/4.0/
OpenAccess true
Representation
Resource Type Bundled Publication of Datasets; Collection
Format application/zip
Size 4 datasets
Discipline Earth System Research
Spatial Coverage (-2.828W, 78.671S, 18.917E, 84.649N); Arctic Ocean
Temporal Coverage Begin 2020-04-04T12:00:14Z
Temporal Coverage End 2020-08-10T10:30:14Z