Snow stable water isotopes of a surface transect at the EastGRIP deep drilling site, summer season 2016, 1 cm ...

• Main Authors: Hörhold, Maria, Behrens, Melanie, Vladimirova, Diana, Madsen, Martin V, Steen-Larsen, Hans Christian
• Format: Dataset
• Language: English
• Published: PANGAEA 2023
• Subjects: EastGRIP; snow-air exchange; stable water isotopes; surface transect; DATE/TIME; Depth, ice/snow, top/minimum; Depth, ice/snow, bottom/maximum; DEPTH, ice/snow; δ18O, water; δ Deuterium, water; Ice drill; Cavity ring-down spectroscopy CRDS isotopic water analyzer, Picarro, L2130-i; East Greenland Ice-core Project EGRIP; 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.957434; https://doi.pangaea.de/10.1594/PANGAEA.957434

Snow samples were taken on a daily basis along a 1000 m wind-parallel transect at the EastGRIP ice core deep drilling site. The snow was collected at 11 to 29 positions with 10 m spacing for the first 100 m and 50 m spacing for the last 900 m in 2 depth intervals. The depth intervals are top 1 cm and top 6 cm. Each day, undisturbed snow was sampled and the exact sample location was marked to avoid sampling disturbed snow during the next sampling event. 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 was used. The measurement set-up followed the Van-Geldern protocol (Van Geldern and Barth, 2012). Each sample was injected 4 times. As a measure of accuracy, we calculated the combined standard uncertainty (Magnusson et al., 2017) including the long-term reproducibility and bias of our laboratory by measuring a ...