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Baisheva, Izabella; Pestryakova, Luidmila A; Ushnitskaya, Lena A; Davydova, Paraskovya V; Levina, Sardana N; Egorov, Aital; Zakharov, Evgenii S; Gorodnichev, Ruslan; Glückler, Ramesh; Stieg, Amelie; Eder, Iris; Kahl, Jan; Meister, Philip; Wieczorek, Mareike; Overduin, Pier Paul; Eulenburg, Antje; Stoof-Leichsenring, Kathleen Rosmarie; Biskaborn, Boris K; Herzschuh, Ulrike; Heim, Birgit (2023): Summer anorganic hydrochemistry (cations and anions) of thermokarst lakes in the Central Yakutian Lowland and mountain lakes in the Verkhoyansk Mountain Range in Eastern Yakutia [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.959459

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Abstract:
Between 6th August and 2nd September, 2021, a total of 66 lakes in Central and Eastern Yakutia were assessed as part of the joint Russian-German expedition (NEFU-AWI; RU-Land_2021_Yakutia). Samples and data were obtained with a large variety of different methods and for a wide range of sampling purposes. This dataset presents the results of hydrochemical laboratory analyses of ion concentration. Of those 66 hydrochemical analyses, 15 are from mountain lakes located within the Verkhoyansk mountain range, at the eastern end of the expedition route, including mostly intermontane basin or glacial lakes (average elevation: c. 1080 m a.s.l.). 13 lakes were sampled in Oymyakonsky District and two lakes in Tomponsky District. The hydrochemical dataset from the other 52 lakes that lie within the eastern extent of the Central Yakutian Lowland (average elevation: c. 190 m a.s.l.) represents thermokarst lakes. Thermokarst lakes originate from thawing of ice-rich permafrost and were found in different stages of their development, with a wide range of anthropogenic impact. These 52 thermokarst lakes include seven lakes within the Churapchinsky District, two are located in the Tattinsky District further east within a freshly burned forest. 42 lakes are located in Megino-Kangalassky District, of which 17 lakes are around Tungulu, and 24 lakes around Maya settlements.
Keyword(s):
Alaas lake; Alas; Central Yakutia; Eastern Yakutia; hydrochemical parameters; Hydrochemistry; Ion composition; Ionic composition; ions; lake water; Lena-Amga interfluve; mountain lakes; Permafrost; subarctic; taiga; thaw lake; water chemistry; Yakutia
Funding:
European Research Council (ERC), grant/award no. 772852: Glacial Legacy on the establishment of evergreen vs. summergreen boreal forests
German Academic Exchange Service (DAAD), grant/award no. 91775743
Ministry of Education and Science of the Russian Federation, grant/award no. FSRG-2020-0019: FSRG-2020-0019
Russian Foundation for Basic Research, grant/award no. 20-35-90081
Coverage:
Median Latitude: 62.294054 * Median Longitude: 133.222778 * South-bound Latitude: 61.717450 * West-bound Longitude: 130.253300 * North-bound Latitude: 63.438860 * East-bound Longitude: 142.957330
Date/Time Start: 2021-08-08T00:00:00 * Date/Time End: 2021-09-02T00:00:00
Minimum Elevation: 114.6 m * Maximum Elevation: 1309.7 m
Event(s):
EN21401 * Latitude: 63.336640 * Longitude: 141.056960 * Date/Time: 2021-08-14T00:00:00 * Elevation: 946.0 m * Lake water depth: 43.0 m * Location: Oymyakonsky District * Campaign: RU-Land_2021_Yakutia * Basis: AWI Arctic Land Expedition * Method/Device: Sampling lake (LAKE)
EN21402 * Latitude: 63.326960 * Longitude: 141.084340 * Date/Time: 2021-08-08T00:00:00 * Elevation: 989.4 m * Lake water depth: 12.6 m * Location: Oymyakonsky District * Campaign: RU-Land_2021_Yakutia * Basis: AWI Arctic Land Expedition * Method/Device: Sampling lake (LAKE)
EN21403 * Latitude: 63.320120 * Longitude: 141.079930 * Date/Time: 2021-08-08T00:00:00 * Elevation: 1036.0 m * Lake water depth: 14.1 m * Location: Oymyakonsky District * Campaign: RU-Land_2021_Yakutia * Basis: AWI Arctic Land Expedition * Method/Device: Sampling lake (LAKE)
Comment:
Method: Surface water of lakes was obtained from ca 50 cm water depth. Fieldwork treatment of the water samples for anions and cations included a filtering step through 0.45 µm pore-size pre-syringe cellulose-acetate filters into 8 ml wide mouth bottles (anions), and 15 ml falcon tubes (cations), with a conservation step for cations by adding 65% HNO3. The ionic composition of surface water was measured at the dedicated hydrochemical laboratory of Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research, Potsdam, Germany.
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1Event labelEventBaisheva, Izabella
2Sample code/labelSample labelBaisheva, Izabella
3CampaignCampaignBaisheva, Izabella
4CountryCountryBaisheva, Izabella
5LocationLocationBaisheva, Izabella
6Latitude of eventLatitudeBaisheva, Izabella
7Longitude of eventLongitudeBaisheva, Izabella
8LakeLakeBaisheva, Izabella
9ELEVATIONElevationm a.s.l.Baisheva, IzabellaGeocode
10DATE/TIMEDate/TimeBaisheva, IzabellaGeocode
11DEPTH, waterDepth watermBaisheva, IzabellaGeocode – Lake depth
12DEPTH, waterDepth watermBaisheva, IzabellaGeocode – Sampling depth
13CalciumCa2+mg/lBaisheva, IzabellaInductively coupled plasma optical emission spectrometry (ICP-OES), Perkin-Elmer, Optima 8300DVDetermination of cations via element contents: ICP-OES
14MagnesiumMg2+mg/lBaisheva, IzabellaInductively coupled plasma optical emission spectrometry (ICP-OES), Perkin-Elmer, Optima 8300DVDetermination of cations via element contents: ICP-OES
15SodiumNa+mg/lBaisheva, IzabellaInductively coupled plasma optical emission spectrometry (ICP-OES), Perkin-Elmer, Optima 8300DVDetermination of cations via element contents: ICP-OES
16PotassiumK+mg/lBaisheva, IzabellaInductively coupled plasma optical emission spectrometry (ICP-OES), Perkin-Elmer, Optima 8300DVDetermination of cations via element contents: ICP-OES
17SiliconSimg/lBaisheva, IzabellaInductively coupled plasma optical emission spectrometry (ICP-OES), Perkin-Elmer, Optima 8300DVDetermination of cations via element contents: ICP-OES
18Phosphate[PO4]3-mg/lBaisheva, IzabellaIon Chromatography System (ICS), Thermo Scientific, Dionex ICS-2100Ion chromatography for the determination of anions: IC
19Bicarbonate ion[HCO3]-mg/lBaisheva, IzabellaPotentiometric pH endpoint titration (HCO3 / alkalinity), 794 Basic Titrino, MetrohmPotentiometric pH endpoint titration up to pH 4.3 for the determination of the of the hydrogen carbonate content (HCO3-, or alkalinity)
20ChlorideCl-mg/lBaisheva, IzabellaIon Chromatography System (ICS), Thermo Scientific, Dionex ICS-2100Ion chromatography for the determination of anions: IC
21Sulfate[SO4]2-mg/lBaisheva, IzabellaIon Chromatography System (ICS), Thermo Scientific, Dionex ICS-2100Ion chromatography for the determination of anions: IC
22FluorideF-µg/lBaisheva, IzabellaIon Chromatography System (ICS), Thermo Scientific, Dionex ICS-2100Ion chromatography for the determination of anions: IC
23Nitrate[NO3]-mg/lBaisheva, IzabellaIon Chromatography System (ICS), Thermo Scientific, Dionex ICS-2100Ion chromatography for the determination of anions: IC
24IronFeµg/lBaisheva, IzabellaInductively coupled plasma optical emission spectrometry (ICP-OES), Perkin-Elmer, Optima 8300DVDetermination of cations via element contents: ICP-OES
25AluminiumAlµg/lBaisheva, IzabellaInductively coupled plasma optical emission spectrometry (ICP-OES), Perkin-Elmer, Optima 8300DVDetermination of cations via element contents: ICP-OES
26Strontium 2+Sr2+µg/lBaisheva, IzabellaInductively coupled plasma optical emission spectrometry (ICP-OES), Perkin-Elmer, Optima 8300DVDetermination of cations via element contents: ICP-OES
27Barium 2+Ba2+µg/lBaisheva, IzabellaInductively coupled plasma optical emission spectrometry (ICP-OES), Perkin-Elmer, Optima 8300DVDetermination of cations via element contents: ICP-OES
28ManganeseMnµg/lBaisheva, IzabellaInductively coupled plasma optical emission spectrometry (ICP-OES), Perkin-Elmer, Optima 8300DVDetermination of cations via element contents: ICP-OES
29BromideBr-µg/lBaisheva, IzabellaIon Chromatography System (ICS), Thermo Scientific, Dionex ICS-2100Ion chromatography for the determination of anions: IC
30PhosphorusPmg/lBaisheva, IzabellaInductively coupled plasma optical emission spectrometry (ICP-OES), Perkin-Elmer, Optima 8300DVDetermination of cations via element contents: ICP-OES
Change history:
2023-06-16T08:01:24 – Version 2, 2023-06-16: Previous version https://doi.pangaea.de/10.1594/PANGAEA.949842 contains errors due to 1) missing values occurred during data processing; 2) wrong parameter labels, now corrected from Sr to Sr2+ and Ba to Ba2+ and 3) incorrect latitude and longitude of the events EN21455, EN21464, EN21465 and EN21466.
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
1467 data points

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