Stable isotope data of water, ice and snow samples obtained in 2018 and 2020 at Lake Khamra, SW Yakutia, Siberia, Russia

• Main Authors: Stieg, Amelie, Biskaborn, Boris K, Herzschuh, Ulrike, Weiner, Mikaela, Marent, Andreas, Meyer, Hanno
• Format: Dataset
• Language: English
• Published: PANGAEA 2024
• Subjects: AWI_Envi; AWI Arctic Land Expedition; Calculated after Dansgaard (1964); Chukotka 2018; Comment; DATE/TIME; Depth; bathymetric; ice/snow; water; Deuterium excess; EN18232-SW; EN20001; EN20015; EN20016; Event label; Gear; ice; Ice thickness; Jiffy ice auger; Khamra 2020; lake; Lake Khamra; SW Yakutia; Russia; LATITUDE; LONGITUDE; Mass spectrometer; Finnigan; Delta-S; Number of measurements; Oxygen isotopes; Polar Terrestrial Environmental Systems @ AWI; Pristine lake; RU-Land_2018_Yakutia; RU-Land_2020_Khamra; Sample ID; Sample type; Siberia; snow; Snow/ice sample; Stable isotopes; Water sample; Arctic; Alfred Wegener Institute; Chukotka; Yakutia
• Online Access: https://doi.pangaea.de/10.1594/PANGAEA.962911; https://doi.org/10.1594/PANGAEA.962911

The dataset contains stable isotope data (δ18O and δD) from water, ice and snow samples of Lake Khamra received during two field campaigns in August 2018 and March 2020. Oxygen and hydrogen isotope analyses were carried out at the ISOLAB Facility at Alfred Wegener Institute in Potsdam (hdl:10013/sensor.ddc92f54-4c63-492d-81c7-696260694001) with mass spectrometers (DELTA-S Finnigan MAT, USA): hdl:10013/sensor.af148dea-fe65-4c87-9744-50dc4c81f7c9 and hdl:10013/sensor.62e86761-9fae-4f12-9c10-9b245028ea4c employing the equilibration method (details in Meyer et al., 2000). δ18O and δD values are given in per mill (‰) vs. Vienna Standard Mean Ocean Water (VSMOW). N indicates the number of measurements per sample. If N > 1, the mean isotope value of the sample was calculated from the individual measurement results. The standard deviation includes all measurements of the individual sample, which is generally better than the external (or machine) error. The external errors of long-term standard measurements for hydrogen and oxygen are better than 0.8‰ and 0.10‰, respectively (Meyer et al., 2000). The second order parameter d excess was computed according to: d excess = δD – 8 * δ18O (Dansgaard, 1964). For the calculation of d excess, the respective mean values were used.