Stable water isotope data of 66 lakes from a summer field campaign in Central and Eastern Yakutia, Siberia in 2021 (RU-Land_2021_Yakutia)

• Main Authors: Stieg, Amelie, Herzschuh, Ulrike, Baisheva, Izabella, Glückler, Ramesh, Eder, Iris, Zakharov, Evgenii S, Biskaborn, Boris K, Meister, Philip, Davydova, Paraskovya V, Kahl, Jan, Weiner, Mikaela, Marent, Andreas, Heim, Birgit, Wieczorek, Mareike, Meyer, Hanno
• Format: Dataset
• Language: English
• Published: PANGAEA 2022
• Subjects: AWI_Envi; AWI Arctic Land Expedition; Calculated after Dansgaard (1964); Central Yakutia; Churapchinsky District; Comment; DATE/TIME; Depth; bathymetric; water; Deuterium excess; d excess; ELEVATION; EN21160; EN21401; EN21402; EN21403; EN21404; EN21405; EN21406; EN21407; EN21408; EN21409; EN21410; EN21411; EN21412; EN21413; EN21414; EN21415; EN21416; EN21417; EN21418; EN21419; EN21420; EN21421; EN21422; EN21423; EN21424; EN21425; EN21426; EN21427; EN21428; EN21429; EN21430; EN21431; EN21432; EN21433; EN21434; EN21435; Sakha; Sakha Republic; Yakutia; Yakutsk; Siberia
• Online Access: https://doi.pangaea.de/10.1594/PANGAEA.950688; https://doi.org/10.1594/PANGAEA.950688

The dataset compiles water isotope measurements of 66 lakes, sampled in Central and Eastern Yakutia during a summer field campaign in August and September 2021 (RU-Land_2021_Yakutia). Additionally, there are isotope data of a single rain event, received during the campaign. The investigated lakes are located in four different study areas in the Sakha Republic, Russia: in the mountainous region of the Verkhoyansk Range within the Oymyakonsky and Tomponsky District (EN21401 - EN21415), and in three lowland regions of Central Yakutia within the Churapchinsky, Tattinsky and the Megino-Kangalassky District (Event EN21416 - EN21467). One lake (EN21160) is centrally located in the city of Yakutsk, the capital of the Sakha Republic. Baisheva et al. (2022) gives an overview of the lakes studied and the corresponding hydrochemistry. Surface water samples (0 – 0.5 m) for measurement of stable water isotopes (δ18O, δD) have been taken for all lakes. If the lakes were deeper than five meters (≥ 5 m), water samples of the middle and bottom water (MW, BW) of the lake were taken, too. Where it was available and reachable, there are also water isotope data from in- or outflow (IF, OF). For two greater lakes, there are one or even more depth profiles composed of several isotope samples from different depths (EN21112, EN21116, EN21124¸ EN21160; numbers at the end indicate different sampling depths). There were two different methods of sampling: Either water for isotope measurements was directly sampled from the lake into 30 ml narrow-mouth PE bottles, filled to the top and closed tightly. Otherwise water samples were taken with an UWITEC water sampler (2 L), filled into a larger sample container (2 L Whirl-Pak®) and subsampled in 30 ml narrow-mouth PE bottles as soon as possible afterwards. The single rain event was sampled on the 22nd of August 2021 at one of the field camp sites, close to the lake EN21427. A dry, clean plastic container was placed outside for receiving the rain. The subsampling was done immediately after the ...