Physical oceanography (CTD) during SONNE cruise SO284


Seabird 911plus systems equipped with dual temperature-conductivity-oxygen sensors were employed. All systems had a 24-bottle water sampling rosette with 10 l Niskin bottles. Water sampling, processing, and calibration followed GO-SHIP recommendations (Swift, 2010; McTaggart et al., 2010; Uchida et al., 2010) and included the recommended steps Data Conversion, Sensor Time-Alignment, Creation of Bottle Files, Outlier Removal, Pressure Sensor Filtering, Conductivity Cell Thermal Mass Correction, Ship Roll Correction and Deck Offset Correction by Loop Editing, as well as Derivation of Calculated Properties. After these steps, conductivity and oxygen readings were calibrated against values determined with salinometry and Winkler titration , respectively. Finally, the downcast data was averaged over 1 dbar wide intervals. An independent upcast calibration was used to obtain calibrated CTDO values coincident with the discrete water samples.

PO-GLOBAL-SVN = 971 used on 07-Dec-2022 18:40:03Matlab = (R2018a)Release = 7nc_uncertainty_p = 2.000000nc_uncertainty_t = 0.002000nc_uncertainty_s = 0.004000nc_uncertainty_o = 1.500000

Related Identifier
Metadata Access
Creator Brandt, Peter (ORCID: 0000-0002-9235-955X); Krahmann, Gerd
Publisher PANGAEA
Publication Year 2022
Rights Creative Commons Attribution 4.0 International;
OpenAccess true
Resource Type Dataset
Format text/tab-separated-values
Size 2823394 data points
Discipline Earth System Research
Spatial Coverage (-35.894W, -11.501S, -14.032E, 39.001N); South Atlantic Ocean; Canarias Sea
Temporal Coverage Begin 2021-07-01T20:41:23Z
Temporal Coverage End 2021-08-04T10:55:20Z