Snow stable water isotopes of precipitation samples at the EastGRIP deep drilling site, summer season 2019 ...

• Main Authors: Hörhold, Maria, Behrens, Melanie, Wahl, Sonja, Faber, Anne-Katrine, Zuhr, Alexandra, Meyer, Hannah, Steen-Larsen, Hans Christian
• Format: Dataset
• Language: English
• Published: PANGAEA 2022
• Subjects: EastGRIP; precipitation; snow; snow-air-exchange; SNOWISO; stable water isotopes; DATE/TIME; δ18O, water; δ Deuterium, water; Sample position; Ice drill; Mass spectrometer; East Greenland Ice-core Project EGRIP; Polar Terrestrial Environmental Systems @ AWI AWI_Envi; Signals from the Surface Snow Post-Depositional Processes Controlling the Ice Core Isotopic Fingerprint SNOWISO; Greenland; Rime; Alfred Wegener Institute; East Greenland; East Greenland Ice-core Project; Greenland ice core; Greenland Ice core Project; ice core
• Online Access: https://dx.doi.org/10.1594/pangaea.945545; https://doi.pangaea.de/10.1594/PANGAEA.945545

Precipitation and rime samples were taken after precipitation events from specific boxes to collect precipitation snow. Two white plastic boxes are placed outside the camp area 1 m above the snow surface and behind a wind shield. The snow was collected using a brush, spatula and small shovel. From each box the available snow was collected into a plastic bag and sealed and labeled. In case the snow of one box was not enough for one sample, the snow of both boxes were combined as one sample. In case not all snow was sampled, the boxes were cleared out after sampling. The samples were kept frozen and shipped frozen to the Alfred-Wegener-Institute and stored at -25 °C. Prior to measurements the samples were melted in the sample bags at room temperature. For the measurement of the isotopic composition a Picarro L2140-i was used. The measurement set-up followed the Van-Geldern Protocol. Each sample was injected four times and the standard deviation is computed. We calculate the average over all the standard ...