Seemann, Fabian; Jenrich, Maren; Lindemann, Justin; Eulenburg, Antje; Weiner, Mikaela; Mollenhauer, Gesine; Meyer, Hanno; Overduin, Pier Paul; Grosse, Guido; Jones, Benjamin; Strauss, Jens: Sediment and pore water investigations in thermokarst terrain near Utqiagvik, Alaska [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.974136 (dataset in review)
Abstract:
This dataset comprises sediment and pore water analyses from sediment cores taken in April 2022 close to Utqiagvik, Alaska. An undisturbed upland, one drained lake basin, two thermokarst lakes as well as a lagoon and a semi-closed lagoon were sampled during fieldwork. Sedimentological and hydrochemical analyses were conducted at the Permafrost Research Section (AWI Potsdam), radiocarbon dating at the Mini Carbon Dating System (MICADAS) laboratory (AWI Bremerhaven) and the isotope data has been generated in the ISOLAB Facility (AWI Potsdam).
Additional metadata:
SENSOR: Metadata for mass spectrometer Finnigan Delta-S mass spectrometer (DIFE) at current Version. Alfred Wegener Institut Helmholtz Centre for Polar and Marine Research, hdl:10013/sensor.af148dea-fe65-4c87-9744-50dc4c81f7c9
SENSOR: Metadata for mass spectrometer ThermoFisher Scientific Delta-V-Advantage at current Version. Alfred Wegener Institut Helmholtz Centre for Polar and Marine Research, hdl:10013/sensor.1df540c8-1409-43bf-a237-9af0cd871fca
Further details:
SENSOR: Metadata for laboratory ISOLAB Facility - Stable Isotope Laboratory Potsdam at current Version. Alfred Wegener Institut Helmholtz Centre for Polar and Marine Research, hdl:10013/sensor.ddc92f54-4c63-492d-81c7-696260694001
Project(s):
Permafrost Research (AWI_Perma)
Funding:
National Science Foundation (NSF), grant/award no. 1806213: Collaborative Research: Causes and Consequences of Catastrophic Thermokarst Lake Drainage in an Evolving Arctic System
National Science Foundation (NSF), grant/award no. 2336164: Collaborative Research: Thaw Below Zero - How Warming Saline Permafrost Controls Key Arctic Landscape Processes
Coverage:
Median Latitude: 71.277458 * Median Longitude: -156.455924 * South-bound Latitude: 71.263200 * West-bound Longitude: -156.496990 * North-bound Latitude: 71.290080 * East-bound Longitude: -156.423550
Date/Time Start: 2022-04-19T00:00:00 * Date/Time End: 2022-04-22T00:00:00
Minimum DEPTH, sediment/rock: 1.5 m * Maximum DEPTH, sediment/rock: 225.0 m
Event(s):
AK-Land_2022_NorthSlope_BRW22_DLB_001 * Latitude: 71.277200 * Longitude: -156.443110 * Date/Time: 2022-04-22T00:00:00 * Recovery: 1.42 m * Campaign: AK-Land_2022_NorthSlope (Perma-X Lagoons Alaska 2022) * Basis: AWI Arctic Land Expedition * Method/Device: SIPRE corer (SIPREC) * Comment: SIPRE corer (7.5 cm diameter)
AK-Land_2022_NorthSlope_BRW22_EL_001 * Latitude: 71.290080 * Longitude: -156.472000 * Date/Time: 2022-04-21T00:00:00 * Recovery: 2.26 m * Location: Alaskan North Slope * Campaign: AK-Land_2022_NorthSlope (Perma-X Lagoons Alaska 2022) * Basis: AWI Arctic Land Expedition * Method/Device: Vibra-corer * Comment: Vibra corer (7.5 cm diameter)
AK-Land_2022_NorthSlope_BRW22_ETL_001 * Latitude: 71.275300 * Longitude: -156.464450 * Date/Time: 2022-04-20T00:00:00 * Recovery: 1.38 m * Location: Alaskan North Slope * Campaign: AK-Land_2022_NorthSlope (Perma-X Lagoons Alaska 2022) * Basis: AWI Arctic Land Expedition * Method/Device: Vibra-corer * Comment: Vibra corer (7.5 cm diameter)
Comment:
F.S. and M.J. received funding from the German Federal Environmental Foundation (Deutsche Bundesstiftung Umwelt).
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Seemann, Fabian | |||
| 2 | Core | Core | Seemann, Fabian | |||
| 3 | LATITUDE | Latitude | Seemann, Fabian | Geocode | ||
| 4 | LONGITUDE | Longitude | Seemann, Fabian | Geocode | ||
| 5 | Area/locality | Area | Seemann, Fabian | |||
| 6 | DEPTH, sediment/rock | Depth sed | m | Seemann, Fabian | Geocode – mean sample depth | |
| 7 | Depth, sediment/rock, top/minimum | Depth sed top | m | Seemann, Fabian | layer top | |
| 8 | Depth, sediment/rock, bottom/maximum | Depth sed bot | m | Seemann, Fabian | layer bottom | |
| 9 | Carbon, total | TC | % | Seemann, Fabian | Carbon Analyzer, Elementar, soli TOC cube | |
| 10 | Carbon, organic, total | TOC | % | Seemann, Fabian | Carbon Analyzer, Elementar, soli TOC cube | |
| 11 | Nitrogen, total | TN | % | Seemann, Fabian | Nitrogen Analyzer, Elementar, rapid MAX N exceed | |
| 12 | Carbon/Nitrogen ratio | C/N | Seemann, Fabian | |||
| 13 | Mercury, total | Hg tot | ng/g | Seemann, Fabian | Mercury analyser, MLS-MWS, DMA-80 evo III | Total mercury; machine detection limit of 0.003 ng and laboratory proven limit of determination of 0.4 ng. |
| 14 | δ13C, organic carbon | δ13C Corg | ‰ PDB | Seemann, Fabian | Mass specrometer, ThermoFischer, Delta-V | ISOLAB Potsdam (see Additional metadata) |
| 15 | Calendar age, mean | Cal age mean | ka BP | Seemann, Fabian | Age, 14C AMS, Mini Carbon Dating System (MICADAS) | |
| 16 | Calendar age, minimum/young | Cal age min | ka BP | Seemann, Fabian | Age, 14C AMS, Mini Carbon Dating System (MICADAS) | |
| 17 | Calendar age, maximum/old | Cal age max | ka BP | Seemann, Fabian | Age, 14C AMS, Mini Carbon Dating System (MICADAS) | |
| 18 | Grain size, mean | Grain size mean | µm | Seemann, Fabian | ||
| 19 | Size fraction < 0.002 mm, clay | <2 µm | % | Seemann, Fabian | Grain size, Mastersizer 3000, Malvern Instrument Inc. | |
| 20 | Size fraction 0.063-0.002 mm, silt, mud | 63-2 µm | % | Seemann, Fabian | Grain size, Mastersizer 3000, Malvern Instrument Inc. | |
| 21 | Size fraction 2.000-0.063 mm, sand | 2000-63 µm | % | Seemann, Fabian | Grain size, Mastersizer 3000, Malvern Instrument Inc. | |
| 22 | Size fraction > 1 mm, gravel | >1 mm | % | Seemann, Fabian | Grain size, Mastersizer 3000, Malvern Instrument Inc. | |
| 23 | Magnetic susceptibility, mass | Suscept/mass | 10-6 m3/kg | Seemann, Fabian | Bartington MS2B bulk sensor 4600 Hz | 4.65 kHz |
| 24 | Magnetic susceptibility, mass | Suscept/mass | 10-6 m3/kg | Seemann, Fabian | Bartington MS2B bulk sensor 4600 Hz | 0.465 kHz |
| 25 | Soil water content | SWC | % | Seemann, Fabian | ||
| 26 | Carbon, organic, dissolved | DOC | mg/l | Seemann, Fabian | High temperature catalytic oxidation (Shimadzu TOC-VCPH) | |
| 27 | pH | pH | Seemann, Fabian | WTW MultiLab 540 | ||
| 28 | Conductivity, electrical | Cond electr | µS/cm | Seemann, Fabian | Handheld meter, WTW, Cond 340i | |
| 29 | δ Deuterium, water | δD H2O | ‰ SMOW | Seemann, Fabian | Mass spectrometer, Finnigan, Delta-S | ISOLAB AWI Potsdam (see Additional metadata) |
| 30 | δ18O, water | δ18O H2O | ‰ SMOW | Seemann, Fabian | Mass spectrometer, Finnigan, Delta-S | ISOLAB AWI Potsdam (see Additional metadata) |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
2472 data points
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