Chizhova, Julia N; Mikhalenko, Vladimir V; Kutuzov, Stanislav S; Kozachek, Anna V (2026): Stable isotope data (δ18O, δ2H, d-excess) of daily precipitation from Azau station (2300 m a.s.l.), southern slope of Elbrus, Caucasus, Russia, 2019–2021 [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.993273 (DOI registration in progress)
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Published: 2026-03-30
Abstract:
This dataset presents the stable isotope composition (δ18O, δ2H, and d-excess) of daily precipitation samples collected at the Azau meteorological site (43.2659° N, 42.4799° E; 2300 m above sea level), located at the foot of the southern slope of Mount Elbrus in the Caucasus, Russia. Sampling was conducted on a daily basis at 09:00 Moscow Time from 1 May 2019 to 27 September 2021. The dataset includes 238 samples of liquid and solid precipitation, analyzed using a Picarro L2130-i cavity ring-down spectrometer at the Arctic and Antarctic Research Institute (AARI), St. Petersburg. Results are reported in per mil (‰) relative to the VSMOW-SLAP scale, with a measurement precision of 0.04‰ for δ18O and 0.5‰ for δ2H. The data reveal strong seasonal cycles, with higher δ-values in summer and lower in winter. The dataset also includes surface air temperature records and precipitation amount from the nearby Terskol meteorological station for the day of sampling.
Related to:
Chizhova, Julia N; Mikhalenko, Vladimir V; Kutuzov, Stanislav S; Shukurov, Karim Abdukhakimovic; Kozachek, Anna V (2023): Isotopic Signature of Precipitation in the Elbrus Region. Izvestiya Atmospheric and Oceanic Physics, 59(S1), S23-S34, https://doi.org/10.1134/S0001433823130054
Coverage:
Latitude: 43.265900 * Longitude: 42.479900
Date/Time Start: 2019-05-02T00:00:00 * Date/Time End: 2021-09-27T00:00:00
Minimum Elevation: 2300.0 m * Maximum Elevation: 2300.0 m
Event(s):
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | LATITUDE | Latitude | Chizhova, Julia N | Geocode | ||
| 2 | LONGITUDE | Longitude | Chizhova, Julia N | Geocode | ||
| 3 | DATE/TIME | Date/Time | Chizhova, Julia N | Geocode – date | ||
| 4 | δ18O, precipitation | δ18O precip | ‰ SMOW | Chizhova, Julia N | Cavity ring-down spectroscopy (CRDS), Picarro Inc., L2130-i | vs. VSMOW-SLAP |
| 5 | δ Deuterium, precipitation | δD precip | ‰ SMOW | Chizhova, Julia N | Cavity ring-down spectroscopy (CRDS), Picarro Inc., L2130-i | vs. VSMOW-SLAP |
| 6 | Deuterium excess | d xs | ‰ | Chizhova, Julia N | Cavity ring-down spectroscopy (CRDS), Picarro Inc., L2130-i | vs. VSMOW-SLAP |
| 7 | Temperature, air, daily mean | TTT day m | °C | Chizhova, Julia N | at the nearby Terskol meteorological station | |
| 8 | Precipitation, daily total | Precip day total | mm/day | Chizhova, Julia N | at the nearby Terskol meteorological station |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
1173 data points