Processed seawater temperature, conductivity and salinity obtained at different depths by CTD buoy 2019O1 as part of the MOSAiC Distributed Network

DOI

CTD buoy 2019O1 was deployed in the MOSAiC Distributed Network in the Northern Laptev Sea in early October 2019 as part of a set of eight identical ice-tethered buoy systems, each consisting of 5 Seabird SBE37IMP Microcat CTDs mounted along an inductive modem tether at depths of 10, 20, 50, 75 and 100m. The CTDs were recording oceanographic data internally at 2-minute intervals. The surface unit of the buoy prompted the instruments for an additional measurement every 10 minutes, which was then transmitted to a base station via iridium along with GPS position and time, as well as surface temperature. After 305 days of drift through the Central Arctic Ocean, 2019O1 was recovered in August 2020, and the internally recorded data from the CTDs were secured. The 10-minute buoy data and 2-minute CTD data were co-processed and merged into a combined product. A buoy flag indicates whether a measurement was taken by the buoy (1) or was recorded by the CTD itself (0). The data were quality controlled by means of outlier detection using global limits, moving average filters and manual inspection. The dataset was carefully checked for inconsistencies, especially in the salinity. Where appropriate, parameters were modified to enhance the quality. A (slightly modified) quality flagging scheme was applied according to the Ocean Data Standards Volume 3 (UNESCO 2013), where 1 = Good, 2 = Good (Modified), 3 = Questionable, 4 = Bad, 9 = no data. Finally, the data were validated against independent measurements. Details are available in the data paper indicted below.

• GearID 1: SBE37IMP, SN 21089• GearID 2: SBE37IMP, SN 21090• GearID 3: SBE37IMP, SN 21091• GearID 4: SBE37IMP, SN 21092• GearID 5: SBE37IMP, SN 21082Acknowledgments:The data were produced as part of the international Multidisciplinary drifting Observatory for the Study of the Arctic Climate (MOSAiC) with the tag MOSAiC20192020 (grant numbers AWI_PS122_00 and AFMOSAiC-1_00). The instruments were funded through the MIDO (Multidisciplinary Ice-based Drifting Observatory) infrastructure program, and built by Pacific Gyre, USA. We thank the crews of the research vessels Akademik Fedorov, Akademik Tryoshnikov and RV Polarstern, and in particular the chief scientists, Thomas Krumpen and Markus Rex. We thank the helicopter company Naryan-Marsky for their great logistical support that made this effort possible. We express our gratitude to all participants of these expeditions, and particularly to the MOSAiC School for their field assistance during the set-up. We appreciate the efforts of Kirstin Schulz, Julia Regnery, Ingo Schuffenhauer, Morven Muilwijk, Sandra Tippenhauer and the entire Leg 4 Team for the recovery of the instruments.

Identifier
DOI https://doi.org/10.1594/PANGAEA.940271
Related Identifier https://doi.org/10.1594/PANGAEA.940320
Related Identifier https://doi.org/10.5194/essd-14-4901-2022
Related Identifier https://doi.org/10.2312/BzPM_0744_2020
Related Identifier https://doi.org/10.1594/PANGAEA.933934
Related Identifier https://doi.org/10.25607/OBP-6
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.940271
Provenance
Creator Hoppmann, Mario ORCID logo; Kuznetsov, Ivan ORCID logo; Fang, Ying-Chih ORCID logo; Rabe, Benjamin 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
Rights Creative Commons Attribution 4.0 International; https://creativecommons.org/licenses/by/4.0/
OpenAccess true
Representation
Resource Type Dataset
Format text/tab-separated-values
Size 16220887 data points
Discipline Earth System Research
Spatial Coverage (-2.166W, 78.593S, 133.481E, 88.358N); Arctic Ocean
Temporal Coverage Begin 2019-10-05T05:11:40Z
Temporal Coverage End 2020-08-05T09:59:40Z