RV Maria S. Merian Cruise MSM28 St. John's - Tromsö 09th May - 20th June Chief Scientist: Dagmar Kieke Region: Subpolar North Atlantic CTD-O data PI: Reiner Steinfeldt Instrument: SBE 9 plus CTD, SBE 11 plus deck unit, SBE 43 dissolved oxygen sensor Accuracy: < 1 dbar for pressure, 0.001 °C for temperature, <0.003 for salinity, <2.5 µmol/kg for oxygen