10.1594/PANGAEA.993682Dengler, MarcusMarcusDengler0000-0001-5993-9088GEOMAR - Helmholtz Centre for Ocean Research KielKrahmann, GerdGerdKrahmannGEOMAR - Helmholtz Centre for Ocean Research KielPANGAEA2026ConductivityDepthOxygenprofilesTemperatureEvent labelDATE/TIMELONGITUDELATITUDEPressure, waterDEPTH, waterTemperature, waterOxygenSound velocity in waterDensity, sigma-theta (0)FluorescenceTurbidity (Nephelometric turbidity unit)CTD/RosetteCTDM189Meteor (1986)Benguela Niños: Physikalische Prozesse und langperiodische Variabilität (BANINO)Tropical and South Atlantic climate-based marine ecosystem predictions for sustainable management (TRIATLAS)2023-04-16T14:04:53/2023-05-10T04:42:05Dataset10.48433/cr_m189_1579960 data pointstext/tab-separated-valuesCreative Commons Attribution 4.0 International94 CTD profiles from the Northern Benguela and Tropical Angolan Upwelling region collected using Seabird 911plus system equipped with dual temperature-conductivity-oxygen sensors. The system 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.9.998714.36779-23.03418-6.20947Horizon 2020https://doi.org/10.13039/501100007601817578Tropical and South Atlantic climate-based marine ecosystem predictions for sustainable management