de.pangaea.dataset971246 und dataset PANGAEA

info@pangaea.de

https://www.pangaea.de/ information pointOfContact 2026-04-30T21:06:53Z https://doi.pangaea.de/10.1594/PANGAEA.971246 2024-09-20T10:51:56 publication https://doi.org/10.1594/PANGAEA.971246 Giest, Frieda

frieda_giest@hotmail.de

https://orcid.org/0000-0002-9252-6231 information author Jenrich, Maren

maren.jenrich@awi.de

https://orcid.org/0000-0002-1330-7461 information author Grosse, Guido

guido.grosse@awi.de

https://orcid.org/0000-0001-5895-2141 information author Jones, Benjamin

bmjones3@alaska.edu

author Mangelsdorf, Kai

kama@gfz-potsdam.de

author Windirsch, Torben

torben.windirsch@googlemail.com

https://orcid.org/0000-0002-4292-6931 information author Strauss, Jens

Jens.Strauss@awi.de

https://orcid.org/0000-0003-4678-4982 information author PANGAEA

info@pangaea.de

https://www.pangaea.de/ information publisher tableDigital 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 biogeochemical analysis included subsamples taken in intervals of 5–10 cm along the cores. Parameters included total carbon (TC) [wt%], total organic carbon (TOC) [wt%], total nitrogen (TN) [wt%], TOC/TN ratio, δ¹³C [‰ vs. VPDB] , δ¹⁵N [‰ vs. air raw], TOC density (TOCvol) [kg/m³], and mercury (Hg) [µg/kg]. completed Giest, Frieda

frieda_giest@hotmail.de

https://orcid.org/0000-0002-9252-6231 information principalInvestigator Biomarker coastal thermokarst land-ocean transition Organic carbon Permafrost Teshekpuk Lake theme 1995-01-01 creation PANGAEA

info@pangaea.de

https://www.pangaea.de/ information pointOfContact AWI_Perma Permafrost Research theme 1995-01-01 creation PANGAEA

info@pangaea.de

https://www.pangaea.de/ information pointOfContact copyright copyright CC-BY-4.0: Creative Commons Attribution 4.0 International textTable und geoscientificInformation -153.708283333 -153.5088 70.8361944444 70.8855861111 2022-04-25T00:00:00 2022-04-27T00:00:00 0.015 2.15 Event label thematicClassification Latitude of event thematicClassification Longitude of event thematicClassification Sample ID thematicClassification Depth, top/min physicalMeasurement m m Depth, bottom/max physicalMeasurement m m DEPTH, sediment/rock physicalMeasurement mean m m Carbon, total physicalMeasurement wt% % % Carbon, organic, total physicalMeasurement wt% % % Nitrogen, total physicalMeasurement wt% % % Carbon, organic, total/Nitrogen, total ratio thematicClassification δ13C, organic carbon physicalMeasurement vs. VPDB ‰ PDB ‰ PDB δ15N, organic matter physicalMeasurement raw ‰ air ‰ air Carbon, organic, total physicalMeasurement kg/m**3 kg/m**3 Mercury physicalMeasurement µg/kg µg/kg text/tab-separated-values unknown https://doi.pangaea.de/10.1594/PANGAEA.971246?format=textfile download dataset The data set was checked for completeness, correctness, and consistency of metainformation. Validity of used methods was checked and - if applicable - precision and range of data. EVENT LABEL: 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 * BASIS: AWI Arctic Land Expedition * METHOD/DEVICE: SIPRE corer landscape: drained thermokarst lake basin; initial condition: frozen; number of subsamples: 13 2022-04-25T00:00:00 EVENT LABEL: 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 * BASIS: AWI Arctic Land Expedition * METHOD/DEVICE: SIPRE corer landscape: semi-drained lagoon; initial condition: frozen; number of subsamples: 15 2022-04-25T00:00:00 EVENT LABEL: 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 * BASIS: AWI Arctic Land Expedition * METHOD/DEVICE: Push corer landscape: intact lagoon; initial condition: unfrozen; number of subsamples: 2 2022-04-27T00:00:00 EVENT LABEL: AK-Land_2022_NorthSlope_TES22-MAR1-02 (MAR) * LATITUDE: 70.885586 * LONGITUDE: -153.663692 * DATE/TIME: 2022-04-26T00:00:00 * RECOVERY: 12 cm * CAMPAIGN: AK-Land_2022_NorthSlope * BASIS: AWI Arctic Land Expedition * METHOD/DEVICE: Push corer landscape: marine ground; initial condition: unfrozen; number of subsamples: 1 2022-04-26T00:00:00 EVENT LABEL: AK-Land_2022_NorthSlope_TES22-TKL1-02 (TKL) * LATITUDE: 70.836194 * LONGITUDE: -153.662806 * DATE/TIME: 2022-04-26T00:00:00 * RECOVERY: 50 cm * CAMPAIGN: AK-Land_2022_NorthSlope * BASIS: AWI Arctic Land Expedition * METHOD/DEVICE: Push corer landscape: thermokarst lake; initial condition: unfrozen; number of subsamples: 7 2022-04-26T00:00:00 EVENT LABEL: AK-Land_2022_NorthSlope_TES22-UPL1-02 (UPL) * LATITUDE: 70.885142 * LONGITUDE: -153.708283 * DATE/TIME: 2022-04-26T00:00:00 * RECOVERY: 203 cm * CAMPAIGN: AK-Land_2022_NorthSlope * BASIS: AWI Arctic Land Expedition * METHOD/DEVICE: SIPRE corer landscape: upland permafrost; initial condition: frozen; number of subsamples: 11 2022-04-26T00:00:00 Related to Giest, Frieda

frieda_giest@hotmail.de

https://orcid.org/0000-0002-9252-6231 information author et al. author documentHardcopy