Processed seawater temperature, conductivity and salinity obtained at different depths by CTD buoy 2019O7 as part of the MOSAiC Distributed Network ...

• Main Authors: Hoppmann, Mario, Kuznetsov, Ivan, Fang, Ying-Chih, Rabe, Benjamin
• Format: Dataset
• Language: English
• Published: PANGAEA 2022
• Subjects: Arctic Ocean; buoy; eddy; mesoscale; mesoscale eddy; MOSAIC_PO; oceanographic time series; oceanography; Transpolar Drift; DATE/TIME; LATITUDE; LONGITUDE; Drift velocity; Submerged; Temperature, air; Gear identification number; Conductivity; Temperature, water; Pressure, water; DEPTH, water; Salinity; Quality flag, conductivity; Quality flag, water temperature; Quality flag, water pressure; Quality flag, water depth; Quality flag, salinity; Flag, buoy; Ocean CTD buoy; See description in dataset comment; CTD, Sea-Bird, SBE 37-IMP MicroCAT; calculated from pressure and latitude; PSS-78, salinity scale; Quality Flag Scheme for the Exchange of Oceanographic and Marine Meteorological Data; see comment; AF-MOSAiC-1; Akademik Fedorov; FRontiers in Arctic marine Monitoring FRAM; Multidisciplinary drifting Observatory for the Study of Arctic Climate MOSAiC; Multidisciplinary Ice-based Distributed Observatory MIDO; Arctic; Laptev Sea; Pacific; laptev
• Online Access: https://dx.doi.org/10.1594/pangaea.940303; https://doi.pangaea.de/10.1594/PANGAEA.940303

CTD buoy 2019O7 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. 2019O7 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, ... : • GearID 1: SBE37IMP, SN 21135• GearID 2: SBE37IMP, SN 21136• GearID 3: SBE37IMP, SN 21137• GearID 4: SBE37IMP, SN 21138• GearID 5: SBE37IMP, SN 21139Acknowledgments: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. ...