Processed seawater temperature, conductivity and salinity obtained at different depths by CTD buoy 2019O8 as part of the MOSAiC Distributed Network


CTD buoy 2019O8 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 surface unit of the buoy prompted the instruments for a 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. 2019O8 stopped transmitting data in mid-November 2019, after only 15 days of drift. The buoy 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 21140• GearID 2: SBE37IMP, SN 21141• GearID 3: SBE37IMP, SN 21142• GearID 4: SBE37IMP, SN 21143• GearID 5: SBE37IMP, SN 21144Acknowledgments: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.

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Metadata Access
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 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 Crossref Funder ID AWI_PS122_00 Multidisciplinary drifting Observatory for the Study of Arctic Climate / MOSAiC
Rights Creative Commons Attribution 4.0 International;
OpenAccess true
Resource Type Dataset
Format text/tab-separated-values
Size 148890 data points
Discipline Earth System Research
Spatial Coverage (126.322W, 84.853S, 134.877E, 85.546N); Arctic Ocean
Temporal Coverage Begin 2019-10-11T01:39:00Z
Temporal Coverage End 2019-10-25T20:49:00Z