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Biskaborn, Boris K; Forster, Amy; Pfalz, Gregor (2023): Nitrogen from sediment core EN18218, Lake Rauchuagytgyn, expedition to Chukotka 2018, Russian Arctic [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.953129

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Abstract:
These dataset contains multi proxy data from sediment core EN18218 obtained from Arctic glacial lake Rauchuagytgyn (67.7922°N, 168.7312°E) by piston coring during the Chukotka 2018 expedition (Siberia). We provide original count data of diatom species from 53 samples along a ca. 5.5 m interval in the sediment core, next to nitrogen and mercury concentrations. The data are complementary to the sedimentological and radiocarbon data published in an earlier data set by Vyse et al. 2021. The data sets provides, calculated from the original data, estimated accumulation rates based on a revised age model explained in the manuscript for diatom valves (diatom accumulation rate, DAR), organic carbon (organic carbon accumulation rates, OCAR), and mercury (Hg accumulation rates, HgAR).
Keyword(s):
Diatom assemblage; Diatom Stratigraphy; Lake sediment core; Mercury concentration; nitrogen content
Related to:
Biskaborn, Boris K; Forster, Amy; Pfalz, Gregor; Pestryakova, Luidmila A; Stoof-Leichsenring, Kathleen Rosmarie; Strauss, Jens; Kröger, Tim; Herzschuh, Ulrike (2023): Diatom responses and geochemical feedbacks to environmental changes at Lake Rauchuagytgyn (Far East Russian Arctic). Biogeosciences, 20(9), 1691-1712, https://doi.org/10.5194/bg-20-1691-2023
Vyse, Stuart Andrew; Herzschuh, Ulrike; Pfalz, Gregor; Diekmann, Bernhard; Nowaczyk, Norbert R; Pestryakova, Luidmila A; Biskaborn, Boris K (2021): Sedimentological and biogeochemical dataset for Arctic glacial lake Rauchuagytgyn, Chukotka, Russia. PANGAEA, https://doi.org/10.1594/PANGAEA.929719
Funding:
European Research Council (ERC), grant/award no. 772852: Glacial Legacy on the establishment of evergreen vs. summergreen boreal forests
Coverage:
Latitude: 67.789380 * Longitude: 168.733520
Minimum DEPTH, sediment/rock: 0.115 m * Maximum DEPTH, sediment/rock: 6.505 m
Event(s):
EN18218 * Latitude: 67.789380 * Longitude: 168.733520 * Lake water depth: 29.5 m * Penetration: 6.53 m * Campaign: RU-Land_2018_Chukotka (Chukotka 2018) * Basis: AWI Arctic Land Expedition * Method/Device: Piston corer (PC)
Comment:
TN was measured using a rapid MAX N exceed (Elementar Analysensysteme GmbH).
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1 DEPTH, sediment/rockDepth sedmBiskaborn, Boris KGeocode – composite
2 Sample code/labelSample labelBiskaborn, Boris K
3 Nitrogen, totalTN%Biskaborn, Boris KElemental analyzer, Elementar, Rapid MAX N exceed
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
128 data points

Data

Download dataset as tab-delimited text — use the following character encoding:

1 
Depth sed [m]		2 
Sample label		3 
TN [%]
0.115EN18218 11.50.230
0.215EN18218 21.50.230
0.315EN18218 31.50.211
0.415EN18218 41.50.204
0.515EN18218 51.50.247
0.615EN18218 61.50.202
0.715EN18218 71.50.190
0.835EN18218 83.50.167
0.915EN18218 91.50.208
1.015EN18218 101.50.182
1.115EN18218 111.50.178
1.215EN18218 121.50.149
1.315EN18218 131.50.119
1.425EN18218 142.50.134
1.515EN18218 151.50.131
1.615EN18218 161.50.121
1.705EN18218 170.50.124
1.815EN18218 181.50.122
1.915EN18218 191.50.108
2.015EN18218 201.50.118
2.115EN18218 211.50.104
2.210EN18218 221<0.100
2.310EN18218 2310.174
2.510EN18218 2510.133
2.610EN18218 261<0.100
2.710EN18218 271<0.100
2.810EN18218 2810.124
2.910EN18218 291<0.100
3.010EN18218 3010.101
3.110EN18218 3110.120
3.210EN18218 3210.158
3.320EN18218 3320.121
3.410EN18218 3410.143
3.510EN18218 351<0.100
3.610EN18218 361<0.100
3.710EN18218 371<0.100
3.800EN18218 380<0.100
3.910EN18218 391<0.100
4.010EN18218 401<0.100
4.110EN18218 411<0.100
4.210EN18218 421<0.100
4.310EN18218 4310.134
4.410EN18218 4410.133
4.510EN18218 4510.127
4.610EN18218 4610.117
4.700EN18218 4700.106
4.810EN18218 4810.109
4.910EN18218 491<0.100
5.010EN18218 5010.110
5.105EN18218 510.50.111
5.205EN18218 520.50.102
5.305EN18218 530.50.120
5.405EN18218 540.50.107
5.505EN18218 550.5<0.100
4.625EN18218 462.5<0.100
5.715EN18218 571.5<0.100
5.815EN18218 581.5<0.100
5.905EN18218 590.5<0.100
6.003EN18218 600.25<0.100
6.105EN18218 610.5<0.100
6.205EN18218 620.5<0.100
6.305EN18218 630.5<0.100
6.405EN18218 640.5<0.100
6.505EN18218 650.5<0.100