Stable water isotopes and conductivities of a lead case study during leg 5 of the MOSAiC expedition ...

• Main Authors: Meyer, Hanno, Mellat, Moein, Nomura, Daiki, Damm, Ellen, Bauch, Dorothea, Weiner, Mikaela, Marent, Andreas
• Format: Dataset
• Language: English
• Published: PANGAEA 2022
• Subjects: freshwater; leads; Leg 5; Mosaic; Sea ice; snow; Event label; Latitude of event; Longitude of event; Sample code/label; Station label; Sample ID; DATE/TIME; Sample type; DEPTH, water; DEPTH, ice/snow; Salinity; δ18O, water; δ Deuterium, water; Deuterium excess; Comment; Water sample; Snow/ice sample; Chamber for gas sampling; Ice corer; Conductivity sensor Cond 315i, WTW GmbH, Germany; Mass spectrometer Finnigan MAT Delta-S ISOLAB; Calculated after Dansgaard 1964; PS122/5; Polarstern; Multidisciplinary drifting Observatory for the Study of Arctic Climate MOSAiC; Permafrost Research AWI_Perma; Polar Terrestrial Environmental Systems @ AWI AWI_Envi; Arctic; Ice; permafrost
• Online Access: https://dx.doi.org/10.1594/pangaea.945285; https://doi.pangaea.de/10.1594/PANGAEA.945285

The dataset comprises stable water isotopes and conductitities of a lead case study during leg 5 of the MOSAiC campaign.Samples have been taken from different water and ice types for this lead case study. Discrete water samples were taken using a peristaltic pump (Masterflex E/S Portable Sampler, Masterflex, USA) through a 2 m long PTFE tube (L/S Pump Tubing, Masterflex, USA). Water samples for measurement of stable water isotopes (δ18O, δD,) were collected in 50-mL glass screw-cap narrow-neck vials (VWR international LLC, Germany). Snow on the sea ice was sampled with a polyethylene shovel (GL Science Inc., Tokyo, Japan) and placed into a polyethylene zip-loc bag. Ice in the lead was collected and a 0.25 m ' 0.25 m ice block was cut with a hand saw and placed into a zip-lock bag. Ice temperature at the surface was measured with a needle-type temperature sensor (Testo 110 NTC, Brandt Instruments, Inc., USA). Two ice cores from the bottom of a melt pond were collected, using an ice corer with an inner ...