Biogeochemical characteristics of sediment cores from a land – shore transect in the Teshekpuk Lake Region in Arctic Alaska, 2022
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| Format: | Dataset Open Access |
| Sprache: | en |
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PANGAEA
2024
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| _version_ | 1867171044126621696 |
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| author | Giest, Frieda Jenrich, Maren Grosse, Guido Jones, Benjamin Mangelsdorf, Kai Windirsch, Torben Strauss, Jens |
| author_facet | Giest, Frieda Jenrich, Maren Grosse, Guido Jones, Benjamin Mangelsdorf, Kai Windirsch, Torben Strauss, Jens |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | 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]. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_971246 |
| institution | PANGAEA |
| language | en |
| publishDate | 2024 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Biogeochemical characteristics of sediment cores from a land – shore transect in the Teshekpuk Lake Region in Arctic Alaska, 2022 Giest, Frieda Jenrich, Maren Grosse, Guido Jones, Benjamin Mangelsdorf, Kai Windirsch, Torben Strauss, Jens AK-Land_2022_NorthSlope; AK-Land_2022_NorthSlope_TES22-DLB1-01; AK-Land_2022_NorthSlope_TES22-LAG1-01; AK-Land_2022_NorthSlope_TES22-LAG2-01; AK-Land_2022_NorthSlope_TES22-MAR1-02; AK-Land_2022_NorthSlope_TES22-TKL1-02; AK-Land_2022_NorthSlope_TES22-UPL1-02; AWI_Perma; AWI Arctic Land Expedition; Biomarker; Carbon, organic, total; Carbon, organic, total/Nitrogen, total ratio; Carbon, total; coastal thermokarst; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; DLB; Event label; LAG; land-ocean transition; Latitude of event; Longitude of event; MAR; Mercury; Nitrogen, total; Organic carbon; Permafrost; Permafrost Research; Perma-X Lagoons Alaska 2022; PUC; Push corer; Sample ID; SDLAG; SIPREC; SIPRE corer; Teshekpuk Lake; TKL; UPL; δ13C, organic carbon; δ15N, organic matter 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]. |
| title | Biogeochemical characteristics of sediment cores from a land – shore transect in the Teshekpuk Lake Region in Arctic Alaska, 2022 |
| topic | AK-Land_2022_NorthSlope; AK-Land_2022_NorthSlope_TES22-DLB1-01; AK-Land_2022_NorthSlope_TES22-LAG1-01; AK-Land_2022_NorthSlope_TES22-LAG2-01; AK-Land_2022_NorthSlope_TES22-MAR1-02; AK-Land_2022_NorthSlope_TES22-TKL1-02; AK-Land_2022_NorthSlope_TES22-UPL1-02; AWI_Perma; AWI Arctic Land Expedition; Biomarker; Carbon, organic, total; Carbon, organic, total/Nitrogen, total ratio; Carbon, total; coastal thermokarst; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; DLB; Event label; LAG; land-ocean transition; Latitude of event; Longitude of event; MAR; Mercury; Nitrogen, total; Organic carbon; Permafrost; Permafrost Research; Perma-X Lagoons Alaska 2022; PUC; Push corer; Sample ID; SDLAG; SIPREC; SIPRE corer; Teshekpuk Lake; TKL; UPL; δ13C, organic carbon; δ15N, organic matter |
| url | https://doi.org/10.1594/PANGAEA.971246 |