Snow Profiles of stable water isotopes at the EastGRIP deep drilling site, summer seasons 2016 - 2019 ...

• Main Authors: Behrens, Melanie, Hörhold, Maria, Town, Michael S, Zuhr, Alexandra, Hoffmann, Andrew, Faber, Anne-Katrine, Vladimirova, Diana, Kahle, Emma, Meyer, Hannah, Freitag, Johannes, Madsen, Martin V, Kipfstuhl, Sepp, Wahl, Sonja, Zolles, Tobias, Steen-Larsen, Hans Christian
• Format: Dataset
• Language: English
• Published: PANGAEA 2023
• Subjects: EastGRIP; snow-air exchange; snow profiles; stable water isotopes; DATE/TIME; Position; DEPTH, ice/snow; δ18O, water; δ Deuterium, water; Deuterium excess; ln-Deuterium excess; Comment; Ice drill; Cavity ring-down spectroscopy CRDS, isotopic water analyzer L2120-i, L2130-i, L2140-i , Picarro Inc.; Calculated; East Greenland Ice-core Project EGRIP; Signals from the Surface Snow Post-Depositional Processes Controlling the Ice Core Isotopic Fingerprint SNOWISO; Greenland; 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.957431; https://doi.pangaea.de/10.1594/PANGAEA.957431

Throughout the summer seasons 2016 to 2019 snow profiles were taken repeatedly. The sample positions are aligned along a 300 m wind-parallel transect at the EastGRIP ice core deep drilling site. The snow was collected at 6 positions with a 20 – 50 m spacing. Snow was sampled using carbon fiber tubes of 1-m length that were pushed gently into the snow. A maximum compaction of 1 cm was observed during extraction. The snow cores were carefully removed from the carbon fiber tubes on the cutting table. The core was then cut into slices of 1 cm thickness for the upper 10 cm and 2 cm thickness for the lower 90 cm. The samples were placed into Whirl-Pak® bags and closed airtight. The samples were shipped frozen to the Alfred-Wegener-Institut 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, the instruments Picarro L2120-i, L2130-I and L2140-i were used. The measurement set-up followed the Van-Geldern protocol ...