Overview of physical oceanography measurements during POLARSTERN cruise PS122 – MOSAiC

• Main Authors: Tippenhauer, Sandra, Karam, Salar, Heuzé, Céline, Rabe, Benjamin
• Format: Dataset
• Language: English
• Published: PANGAEA 2021
• Subjects: Arctic; Arctic Ocean; AWI_PhyOce; Cruise/expedition; CTD; handheld; CTD/Rosette; CTD-RO; DATE/TIME; Fram Strait; Gear; hCTD; hydrographic data; Identification; LATITUDE; LONGITUDE; MOSAiC; MOSAiC20192020; MOSAiC expedition; Multidisciplinary drifting Observatory for the Study of Arctic Climate; Physical Oceanography @ AWI; polar night; Polarstern; Pressure; water; PS122/1; PS122/1_10-41; PS122/1_10-44; PS122/1_10-60; PS122/1_10-64; PS122/1_6-58; PS122/1_6-79; PS122/1_6-81; PS122/1_7-47; PS122/1_7-49; PS122/1_7-80; PS122/1_8-43; PS122/1_8-46; PS122/1_8-71; PS122/1_8-98; PS122/1_9-50; PS122/1_9-61; PS122/1_9-67; PS122/1_9-87; PS122/2; PS122/2_16-21; PS122/2_16-34; PS122/2_17-39; PS122/2_17-41; PS122/2_17-64
• Online Access: https://doi.pangaea.de/10.1594/PANGAEA.936275; https://doi.org/10.1594/PANGAEA.936275

This dataset gives an overview on the hydrographic properties encountered during the Multidisciplinary drifting observatory for the study of Arctic Climate (MOSAiC). It is not the final dataset and it does not contain single profiles. Rather this data set contains the median of the preprocessed data collected with the ship-based conductivity, temperature depth profiler (CTD) as well as one profile of a hand-held CTD operated from the ice. The data collected with the ship-based CTD was processed using the standard SBE processing routines. Additionally, large spikes where removed. The data was interpolated onto a 5 dbar regular grid and subsequently the median was computed over each pressure level. The data collected with the ice-based hand-held CTD was processed manually. Surface values with conductivity readings below 0.5mS/cm and temperature values below the surface freezing temperature were removed. A pressure offset of 2 dbar was subtracted. The data was then binned in 0.1 steps to 5 dbar, in steps of 0.25 to 20 dbar, in steps of 0.5 dbar to 100 dbar and in steps of 1 dbar below. For both, ship-based CTD and ice-based hand-held CTD data Absolute Salinity (SA), Practical Salinity (SP) and Conservative Temperature (CT) where derived using the TEOS-10 GSW toolbox (McDougall and Barker 2011). This work was carried out and data used in this manuscript was produced as part of the international Multidisciplinary drifting Observatory for the Study of the Arctic Climate (MOSAiC) with the tag MOSAiC20192020. We thank all persons involved in the expedition of the Research Vessel Polarstern during MOSAiC in 2019-2020 (AWI_PS122_00) as listed in Nixdorf et al. (2021).