Data presented here were collected during the cruise MSM56 (Project MECAF) with the RV Maria S. Merian from Longyearbyen, Svalbard, Norway to Reykjavik, Iceland (July 01, 2016 to July 23, 2016). In total, 56 vertical CTD-hauls were conducted with the onboard CTD: in general, a deep cast up to bottom depth. The CTD system used was a Sea-Bird Electronics Inc. SBE 911plus, attached to a SBE 32 Carousel Water Sampler containing 24x 10-liter bottles. The system was equipped with: double temperature and conductivity probes, a pressure sensor (Digiquartz), an oxygen sensor (SBE 43), an altimeter (Benthos) and a chlorophyll fluorometer combined with a turbidity sensor (WET Labs ECO-AFL/FL). The sensors were pre-calibrated by the manufacturers for the ECO- AFL/FL additionally a post-cruise-calibration was done by the manufacturer. The data were recorded with the Seasave V 7.22 software and processed using SeaBird SBE Data Processing software. Data are visually checked. The ship position was derived from the shipboard GPS-system linked to the CTD data. The time zone is given in UTC. Salinity was quality checked by reference samples [n=20], measured with an Optimare Precision Salinometer (OPS S/N 003) 4 month after the cruise (S1: R² 0.9571).

Binned at 1 m vertical intervals