Oxygen and hydrogen isotopes in water samples collected during Polarstern cruise PS100 in 2016

• Main Authors: Meyer, Hanno, Schaffer, Janin, Rabe, Benjamin, Rutgers van der Loeff, Michiel M
• Format: Dataset
• Language: English
• Published: PANGAEA 2021
• Subjects: 18O; ARK-XXX/2; GN05; AWI_Envi; Bottle number; Calculated; Cast number; CTD; SEA-BIRD SBE 911plus; SN T5101-C3290; CTD/Rosette; CTD-L; CTD Large; CTD-RO; Density; potential; DEPTH; water; derived from SBE43 oxygen sensor; Deuterium excess; Event label; FRAM; GEOTRACES; Global marine biogeochemical cycles of trace elements and their isotopes; GRIFF; Isotope ratio mass spectrometry; North Greenland Sea; Norwegian Sea; Oxygen; Polarstern; Polar Terrestrial Environmental Systems @ AWI; Pressure; PS100; PS100/002-1; PS100/015-2; PS100/015-5; PS100/027-1; PS100/028-2; PS100/028-4; PS100/044-2; PS100/044-4; PS100/046-1; PS100/048-1; PS100/052-2; PS100/052-4; PS100/056-2; PS100/056-5; PS100/060-1; PS100/062-1; Berichte zur Polar- und Meeresforschung; East Greenland; Fram Strait; Greenland; Greenland Sea; North Greenland; Reports on Polar and Marine Research; Sea ice
• Online Access: https://doi.pangaea.de/10.1594/PANGAEA.927429; https://doi.org/10.1594/PANGAEA.927429

Oxygen and hydrogen isotopes are key tracers to identify the sources of fresh water in a seawater sample, especially to distinguish meteoric water from sea-ice meltwater. Water samples were collected from CTD-Rosette casts during Polarstern expedition PS100, July - September 2016, to the Fram Strait and East Greenland Shelf area. Unfiltered water was collected in 100-ml glass bottles. The bottles were rinsed three times with the sample and filled through a silicon tube, avoiding gas bubbles, until just below the rim. The bottles were closed air tight, waxed by dipping them upside down in a melted beewax/stearine mixture, and stored at 2-5°C. Mass spectrometric analysis was carried out in the AWI stable isotope laboratory in Potsdam.