Giest, Frieda; Jenrich, Maren; Grosse, Guido; Jones, Benjamin; Mangelsdorf, Kai; Windirsch, Torben; Strauss, Jens (2024): Hydrochemical characteristics of sediment cores from a land – shore transect in the Teshekpuk Lake Region in Arctic Alaska, 2022 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.971251
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Published: 2024-09-20 • DOI registered: 2024-10-19
Abstract:
This dataset describes six sediment cores (12 - 219 cm length) from different landscape features in a coastal permafrost thermokarst affected landscape in the Theshekpuk Lake region in Arctic Alaska. They are located in a transect from inland to coast, to describes the transitional dynamics between terrestrial and marine permafrost and thermokarst. The cores were drilled during the Perma-X Lagoon expedition in April 2022. The three unfrozen cores from a marine (MAR, 12 cm length), an intact lagoon (LAG, 31 cm length) and a thermokarst lake (TKL, 50 cm length) site, were all sampled using a Push Corer. The three frozen cores, including upland permafrost (UPL, 203 cm length), drained thermokarst lake basin (DLB, 219 cm length) and semi-drained lagoon (SDLAG, 183 cm length) deposits, were drilled using a SIPRE Corer. The hydrochemical analysis included the uppermost samples of each core and in case of the frozen cores additionally samples from the middle and the bottom sections of the cores. Measured parameters were pH values, electrical conductivity (EC) [mS/cm], and dissolved organic carbon (DOC) [mg/L].
Keyword(s):
Related to:
Giest, Frieda; et al. (submitted): Organic Carbon, Mercury, and Sediment Characteristics along a land – shore transect in Arctic Alaska.
Project(s):
Permafrost Research (AWI_Perma)
Coverage:
Median Latitude: 70.868315 * Median Longitude: -153.645381 * South-bound Latitude: 70.836194 * West-bound Longitude: -153.708283 * North-bound Latitude: 70.885586 * East-bound Longitude: -153.508800
Date/Time Start: 2022-04-25T00:00:00 * Date/Time End: 2022-04-27T00:00:00
Minimum DEPTH, sediment/rock: 0.0500 m * Maximum DEPTH, sediment/rock: 2.1500 m
Event(s):
AK-Land_2022_NorthSlope_TES22-DLB1-01 (DLB) * Latitude: 70.854375 * Longitude: -153.663944 * Date/Time: 2022-04-25T00:00:00 * Recovery: 219 cm * Campaign: AK-Land_2022_NorthSlope (Perma-X Lagoons Alaska 2022) * Basis: AWI Arctic Land Expedition * Method/Device: SIPRE corer (SIPREC) * Comment: landscape: drained thermokarst lake basin; initial condition: frozen; number of subsamples: 13
AK-Land_2022_NorthSlope_TES22-LAG1-01 (SDLAG) * Latitude: 70.870994 * Longitude: -153.664761 * Date/Time: 2022-04-25T00:00:00 * Recovery: 183 cm * Campaign: AK-Land_2022_NorthSlope (Perma-X Lagoons Alaska 2022) * Basis: AWI Arctic Land Expedition * Method/Device: SIPRE corer (SIPREC) * Comment: landscape: semi-drained lagoon; initial condition: frozen; number of subsamples: 15
AK-Land_2022_NorthSlope_TES22-LAG2-01 (LAG) * Latitude: 70.877600 * Longitude: -153.508800 * Date/Time: 2022-04-27T00:00:00 * Recovery: 31 cm * Campaign: AK-Land_2022_NorthSlope (Perma-X Lagoons Alaska 2022) * Basis: AWI Arctic Land Expedition * Method/Device: Push corer (PUC) * Comment: landscape: intact lagoon; initial condition: unfrozen; number of subsamples: 2
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Giest, Frieda | |||
| 2 | Latitude of event | Latitude | Giest, Frieda | |||
| 3 | Longitude of event | Longitude | Giest, Frieda | |||
| 4 | Sample ID | Sample ID | Giest, Frieda | |||
| 5 | Depth, top/min | Depth top | m | Giest, Frieda | ||
| 6 | Depth, bottom/max | Depth bot | m | Giest, Frieda | ||
| 7 | DEPTH, sediment/rock | Depth sed | m | Giest, Frieda | Geocode – mean | |
| 8 | pH | pH | Giest, Frieda | |||
| 9 | Conductivity | Cond | mS/cm | Giest, Frieda | electrical conductivity | |
| 10 | Carbon, organic, dissolved | DOC | mg/l | Giest, Frieda | as NPOC |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
67 data points