Snow Profiles of stable water isotopes at the EastGRIP deep drilling site, summer seasons 2017 - 2019 ...

• Main Authors: Steen-Larsen, Hans Christian, Sveinbjörnsdottir, Árný E, Ólafsdóttir, Rosa, Behrens, Melanie, Faber, Anne-Katrine, Freitag, Johannes, Hoffmann, Andrew, Hörhold, Maria, Kahle, Emma, Kipfstuhl, Sepp, Madsen, Martin V, Meyer, Hannah, Town, Michael S, Vladimirova, Diana, Wahl, Sonja, Zolles, Tobias, Zuhr, Alexandra
• Format: Dataset
• Language: unknown
• Published: PANGAEA 2024
• Subjects: EastGRIP; snow-air exchange; SNOWISO; snow profiles; stable water isotopes; DATE/TIME; Position; DEPTH, ice/snow; δ18O, water; δ Deuterium, water; Deuterium excess; ln-Deuterium excess; Snow/ice sample; Cavity ring-down spectroscopy CRDS, isotopic water analyzer L2130-i, Picarro Inc.; According to Merlivat and Jouzel 1979; According to Uemura et al. 2012; East Greenland Ice-core Project EGRIP; Signals from the Surface Snow Post-Depositional Processes Controlling the Ice Core Isotopic Fingerprint SNOWISO; East Greenland; East Greenland Ice-core Project; Greenland; Greenland ice core; Greenland Ice core Project; ice core
• Online Access: https://dx.doi.org/10.1594/pangaea.963834; https://doi.pangaea.de/10.1594/PANGAEA.963834

Throughout the summer seasons 2017 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 instrument Picarro L2130-i were used. The measurement set-up followed the Van-Geldern protocol (Van Geldern and ...