RV Maria S. Merian Cruise MSM21/2 Reykjavik - Nuuk 25th June - 24th July Chief Scientist: Dagmar Kieke Region: Subpolar North Atlantic CTD data PI: Reiner Steinfeldt Instrument: SBE 9 plus CTD, SBE 11 plus deck unit Accuracy: < 1 dbar for pressure, 0.001 °C for temperature, <0.003 for salinity