Pavlyukevich Ekaterina ekaterina.kornilova.hydro@gmail.com 0000-0002-8416-5843 Institute of Water Problems, Russian Academy of Sciences IWP RAS http://www.iwp.ru/ https://ror.org/01rmxff98 Popovnin Viсtor begemotina81@gmail.com Lomonosov Moscow State University MSU http://www.msu.ru/en/ https://ror.org/010pmpe69 Gubanov Afanasy afanasygubanov@gmail.com 0009-0007-1145-5878 Lomonosov Moscow State University MSU http://www.msu.ru/en/ https://ror.org/010pmpe69 Ivanov Viсtor viktoro.1998@yandex.ru Lomonosov Moscow State University MSU http://www.msu.ru/en/ https://ror.org/010pmpe69 Averina Alena averinaa101@gmail.com Lomonosov Moscow State University MSU http://www.msu.ru/en/ https://ror.org/010pmpe69 Ibraev Kirill kic.alen30@gmail.com Lomonosov Moscow State University MSU http://www.msu.ru/en/ https://ror.org/010pmpe69 Voevodina Anastasia annaanastasija.tavak@gmail.com Lomonosov Moscow State University MSU http://www.msu.ru/en/ https://ror.org/010pmpe69 Durmanov Ivan durmivan@yandex.ru Institute of Water Problems IWP RAS http://www.iwp.ru/ https://ror.org/01rmxff98 Khomiakova Victoria curcuma162@gmail.com Arctic and Antarctic Research Institute, St. Petersburg AARI http://www.aari.nw.ru/default_en.asp https://ror.org/051w7zc95 Chizhova Julia N eacentr@yandex.ru 0000-0003-0539-5796 Institute of Geography, Russian Academy of Sciences, Moscow IGRAN https://ror.org/00q976b76 Kozachek Anna V kozachek@aari.ru 0000-0002-9704-8064 Arctic and Antarctic Research Institute, St. Petersburg AARI http://www.aari.nw.ru/default_en.asp https://ror.org/051w7zc95 Ekaykin Alexey A ekaykin@aari.ru 0000-0001-9819-2802 Arctic and Antarctic Research Institute, St. Petersburg AARI http://www.aari.nw.ru/default_en.asp https://ror.org/051w7zc95 Tsyplenkov Anatoly atsyplenkov@gmail.com Lomonosov Moscow State University MSU http://www.msu.ru/en/ https://ror.org/010pmpe69 Zheleznova Irina irik88@mail.ru Lomonosov Moscow State University MSU http://www.msu.ru/en/ https://ror.org/010pmpe69 2026 Hydrological measurements in the Djankuat research basin at the 'rock' gauging station from 2021-2024 dataset https://doi.org/10.1594/PANGAEA.989852 2026-02-19T10:17:44 https://doi.org/10.1594/PANGAEA.989847 This is the second update of a dataset comprising long-term complex glaciological, hydrological, and meteorological observations, including isotope sampling, from the highly underreported alpine zone of the North Caucasus, described in Rets et al., 2019 (https://doi.org/10.5194/essd-11-1463-2019). The data were collected in the Djankuat research basin (9.1 km², elevations of 2500–4000 m, 30% glacier cover). The Djankuat glacier, located in the basin under study, is a World Meteorological Organization reference glacier with a mass-balance record exceeding 50 years. The original dataset covers 2007-2017 (https://doi.org/10.1594/PANGAEA.894807), with the first update for 2019-2020 (https://doi.org/10.1594/PANGAEA.940839). This second update extends the series to 2021-2024. It also includes previously unpublished data of glacier ablation, snow height, and snow density measurements in the spatially distributed net for the 2019-2020 period. A significant enhancement since 2021 is the operation of an additional year-round hydrological gauging station on the Djankuat River 1 km downstream of the main one. The dataset includes results from annual measurements of snow thickness and density; snow and ice melt dynamics; water runoff, conductivity, turbidity, temperature, δ¹⁸O, and δ²H at gauging stations; isotopic sampling of precipitation, snow, ice, firn, and groundwater; and high-resolution meteorological data (precipitation, air temperature, humidity, radiation, pressure, wind). The observations were primarily conducted during the summer ablation seasons (June-October), with gradient and eddy covariance measurements for turbulent flux estimation. This dataset is invaluable for developing and validating hydrological, glaciological, and meteorological models, assessing climate change impacts on mountain hydrology, and applying isotopic methods in high-altitude research. The dataset will be periodically updated. The research was supported by Russian Science Foundation, grant no. 25-77-10049 (in part of hydrological observations), grant no. 22-17-00133 (in part of glaciological observations), and was carried out under the Governmental Order to Water Problems Institute, Russian Academy of Sciences, subject no. FMWZ-2025-0003 (in part of meteorological observations). Rets Ekaterina P retska@mail.ru 0000-0002-4505-1173 Popovnin Viktor V begemotina@hotmail.com Toropov Pavel A tormet@inbox.ru Smirnov Andrew M Tokarev Igor V 0000-0003-1095-0731 Chizhova Julia N eacentr@yandex.ru 0000-0003-0539-5796 Budantseva Nadine A nadin.budanceva@mail.ru Vasil'chuk Yurij K vasilch_geo@mail.ru 0000-0001-5847-5568 Kireeva Maria B kireeva_mb@mail.ru 0000-0002-8285-9761 Ekaykin Alexey A ekaykin@aari.ru 0000-0001-9819-2802 Veres Arina N veres@aari.ru Aleynikov Alexander A Frolova Natalia L 0000-0003-3576-285X Tsyplenkov Anatolii S 0000-0003-4144-8402 Poliukhov Aleksei A 0000-0001-6336-3376 Chalov Sergey R 0000-0002-6937-7020 Aleshina Maria A aleshina_mashusha@rambler.ru 0000-0001-8416-7657 Kornilova Ekaterina D ekaterina.kornilova.hydro@gmail.com 0000-0002-8416-5843 2019 Djankuat glacier station in the North Caucasus, Russia: a database of glaciological, hydrological, and meteorological observations and stable isotope sampling results during 2007–2017 journal article Earth System Science Data 11(3) https://doi.org/10.5194/essd-11-1463-2019 1463-1481 42.72625 42.72625 43.21277 43.21277 42.72625 43.21277 2021-06-20T12:00:00 2024-10-17T00:00:00 2600.0 2600.0 Russian Academy of Sciences RAS https://doi.org/10.13039/501100002674 FMWZ-2025-0003 Governmental Order to Water Problems Institute Russian Science Foundation https://doi.org/10.13039/501100006769 22-17-00133 Progressive escalation of the reduction of ice and water resources in the Caucasus: reality or myth? https://rscf.ru/en/project/22-17-00133/ Russian Science Foundation https://doi.org/10.13039/501100006769 25-77-10049 Outburst hazard assessment of mountain glacial lakes of the Central Caucasus under climate change using modelling and machine learning methods Djankuat_RiverSt_Rock 43.21277 42.72625 Russia 2600.0 River gauging station RGS Depth & pressure sensors 36624 CC-BY-4.0 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ DATE/TIME Date/Time http://en.wikipedia.org/wiki/ISO_8601 Time T http://dbpedia.org/resource/Time Pavlyukevich Ekaterina ekaterina.kornilova.hydro@gmail.com 0000-0002-8416-5843 UTC Date/Time Date/Time local Date/Time local https://en.wikipedia.org/wiki/ISO_8601 Pavlyukevich Ekaterina ekaterina.kornilova.hydro@gmail.com 0000-0002-8416-5843 Date/Time local Discharge Q m**3/s Volume per Unit Time Calculated Pavlyukevich Ekaterina ekaterina.kornilova.hydro@gmail.com 0000-0002-8416-5843 Calculated from the Water level (H) measurements, using dependency Q=f(H) Q [m**3/s] Conductivity, electrical EC µS/cm conductivity http://purl.obolibrary.org/obo/PATO_0001585 Electrical conductivity meter Pavlyukevich Ekaterina ekaterina.kornilova.hydro@gmail.com 0000-0002-8416-5843 EC [µS/cm] CurationLevelC Enhanced curation https://wiki.pangaea.de/wiki/Curation_levels citable alpine catchment catchment hydrology Caucasus Conductivity Discharge Djankuat Glacial climate Glacier Catchment high-altitude hydrological data isotope composition isotope data Meteorological datasets mountain catchment mountain station North Caucasus precipitation research catchment Russia author114355 author114356 author114357 author114358 author114359 author114361 author31980 author66759 author66760 author66761 author66762 author66763 author66764 author66765 author66766 author66767 author66768 author66769 author66770 author66771 author66773 author66774 author66775 author67049 author74083 author87352 author87353 author87354 author87355 author87356 award4484 award4760 award4761 curlevel30 event3347676 funder20642 funder3000 geocode1599 geocode1600 geocode1601 geocode8128 inst22541 inst2934 inst2987 inst352 inst48 journal16590 license21 method11541 method14212 method50 param130429 param162619 param508172 pi114361 ref97455 term1073162 term23889 term43975 term43985 term47344 term47956 term49691 term51492 term51774 term51920 term52067 term53781 term54838 term60468 term67352 term67612 term69435 term70132 term70133 term70134 term70135 term70136 term70137 term73546