Giest Frieda frieda_giest@hotmail.de 0000-0002-9252-6231 Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Potsdam AWI Potsdam http://www.awi.de/en/institute/sites/potsdam/ https://ror.org/032e6b942 Jenrich Maren maren.jenrich@awi.de 0000-0002-1330-7461 Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Potsdam AWI Potsdam http://www.awi.de/en/institute/sites/potsdam/ https://ror.org/032e6b942 Grosse Guido guido.grosse@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/guido-grosse.html 0000-0001-5895-2141 Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Potsdam AWI Potsdam http://www.awi.de/en/institute/sites/potsdam/ https://ror.org/032e6b942 Jones Benjamin bmjones3@alaska.edu University of Alaska Fairbanks https://ror.org/01j7nq853 Mangelsdorf Kai kama@gfz-potsdam.de GeoForschungsZentrum Potsdam GFZ http://www.gfz-potsdam.de/ https://ror.org/04z8jg394 Windirsch Torben torben.windirsch@googlemail.com 0000-0002-4292-6931 Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Potsdam AWI Potsdam http://www.awi.de/en/institute/sites/potsdam/ https://ror.org/032e6b942 Strauss Jens Jens.Strauss@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/jens-strauss.html 0000-0003-4678-4982 Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Potsdam AWI Potsdam http://www.awi.de/en/institute/sites/potsdam/ https://ror.org/032e6b942 2024 Biogeochemical characteristics of sediment cores from a land – shore transect in the Teshekpuk Lake Region in Arctic Alaska, 2022 dataset https://doi.org/10.1594/PANGAEA.971246 2024-09-20T10:51:56 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]. Giest Frieda frieda_giest@hotmail.de 0000-0002-9252-6231 et al. submitted Organic Carbon, Mercury, and Sediment Characteristics along a land – shore transect in Arctic Alaska other -153.708283333 -153.5088 70.8361944444 70.8855861111 -153.6453810185 70.86831527776667 2022-04-25T00:00:00 2022-04-27T00:00:00 0.015 2.15 AWI_Perma Permafrost Research https://www.awi.de/en/science/geosciences/permafrost-research.html Alfred Wegener Institute - Research Unit Potsdam AWI Potsdam http://www.awi.de/en/institute/sites/potsdam/ https://ror.org/032e6b942 AK-Land_2022_NorthSlope_TES22-DLB1-01 DLB 70.854375 -153.663944444 2022-04-25T00:00:00 AK-Land_2022_NorthSlope AK-Land_2022_NorthSlope Perma-X Lagoons Alaska 2022 Perma-X Lagoons Alaska 2022 2022-04-15T00:00:00 2022-04-15 2022-05-09T00:00:00 2022-05-09 AWI Arctic Land Expedition Grosse, Guido Grosse, Guido AWI Arctic Land Expedition SIPRE corer SIPREC 219 cm landscape: drained thermokarst lake basin; initial condition: frozen; number of subsamples: 13 AK-Land_2022_NorthSlope_TES22-LAG1-01 SDLAG 70.8709944444 -153.664761111 2022-04-25T00:00:00 AK-Land_2022_NorthSlope AK-Land_2022_NorthSlope Perma-X Lagoons Alaska 2022 Perma-X Lagoons Alaska 2022 2022-04-15T00:00:00 2022-04-15 2022-05-09T00:00:00 2022-05-09 AWI Arctic Land Expedition Grosse, Guido Grosse, Guido AWI Arctic Land Expedition SIPRE corer SIPREC 183 cm landscape: semi-drained lagoon; initial condition: frozen; number of subsamples: 15 AK-Land_2022_NorthSlope_TES22-LAG2-01 LAG 70.8776 -153.5088 2022-04-27T00:00:00 AK-Land_2022_NorthSlope AK-Land_2022_NorthSlope Perma-X Lagoons Alaska 2022 Perma-X Lagoons Alaska 2022 2022-04-15T00:00:00 2022-04-15 2022-05-09T00:00:00 2022-05-09 AWI Arctic Land Expedition Grosse, Guido Grosse, Guido AWI Arctic Land Expedition Push corer PUC 31 cm landscape: intact lagoon; initial condition: unfrozen; number of subsamples: 2 AK-Land_2022_NorthSlope_TES22-MAR1-02 MAR 70.8855861111 -153.663691667 2022-04-26T00:00:00 AK-Land_2022_NorthSlope AK-Land_2022_NorthSlope Perma-X Lagoons Alaska 2022 Perma-X Lagoons Alaska 2022 2022-04-15T00:00:00 2022-04-15 2022-05-09T00:00:00 2022-05-09 AWI Arctic Land Expedition Grosse, Guido Grosse, Guido AWI Arctic Land Expedition Push corer PUC 12 cm landscape: marine ground; initial condition: unfrozen; number of subsamples: 1 AK-Land_2022_NorthSlope_TES22-TKL1-02 TKL 70.8361944444 -153.662805556 2022-04-26T00:00:00 AK-Land_2022_NorthSlope AK-Land_2022_NorthSlope Perma-X Lagoons Alaska 2022 Perma-X Lagoons Alaska 2022 2022-04-15T00:00:00 2022-04-15 2022-05-09T00:00:00 2022-05-09 AWI Arctic Land Expedition Grosse, Guido Grosse, Guido AWI Arctic Land Expedition Push corer PUC 50 cm landscape: thermokarst lake; initial condition: unfrozen; number of subsamples: 7 AK-Land_2022_NorthSlope_TES22-UPL1-02 UPL 70.8851416667 -153.708283333 2022-04-26T00:00:00 AK-Land_2022_NorthSlope AK-Land_2022_NorthSlope Perma-X Lagoons Alaska 2022 Perma-X Lagoons Alaska 2022 2022-04-15T00:00:00 2022-04-15 2022-05-09T00:00:00 2022-05-09 AWI Arctic Land Expedition Grosse, Guido Grosse, Guido AWI Arctic Land Expedition SIPRE corer SIPREC 203 cm landscape: upland permafrost; initial condition: frozen; number of subsamples: 11 511 CC-BY-4.0 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ Event label Event Giest Frieda frieda_giest@hotmail.de 0000-0002-9252-6231 Event Latitude of event Latitude Giest Frieda frieda_giest@hotmail.de 0000-0002-9252-6231 Latitude Longitude of event Longitude Giest Frieda frieda_giest@hotmail.de 0000-0002-9252-6231 Longitude Sample ID Sample ID Giest Frieda frieda_giest@hotmail.de 0000-0002-9252-6231 Sample ID Depth, top/min Depth top m depth http://purl.obolibrary.org/obo/PATO_0001595 Length L http://dbpedia.org/resource/Length Giest Frieda frieda_giest@hotmail.de 0000-0002-9252-6231 Depth top [m] Depth, bottom/max Depth bot m depth http://purl.obolibrary.org/obo/PATO_0001595 maximal max Length L http://dbpedia.org/resource/Length Giest Frieda frieda_giest@hotmail.de 0000-0002-9252-6231 Depth bot [m] DEPTH, sediment/rock Depth sed m depth http://purl.obolibrary.org/obo/PATO_0001595 sediment http://purl.obolibrary.org/obo/ENVO_00002007 rock Length L http://dbpedia.org/resource/Length Giest Frieda frieda_giest@hotmail.de 0000-0002-9252-6231 mean Depth sed [m] Carbon, total TC % carbon C https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:27594 total https://www.oxforddictionaries.com/definition/american_english/total Dimensionless Ratio ψ Giest Frieda frieda_giest@hotmail.de 0000-0002-9252-6231 wt% TC [%] Carbon, organic, total TOC % carbon C https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:27594 organic total https://www.oxforddictionaries.com/definition/american_english/total Dimensionless Ratio ψ Giest Frieda frieda_giest@hotmail.de 0000-0002-9252-6231 wt% TOC [%] Nitrogen, total TN % nitrogen N https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:25555 total https://www.oxforddictionaries.com/definition/american_english/total Dimensionless Ratio ψ Giest Frieda frieda_giest@hotmail.de 0000-0002-9252-6231 wt% TN [%] Carbon, organic, total/Nitrogen, total ratio TOC/TN carbon C https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:27594 organic total https://www.oxforddictionaries.com/definition/american_english/total nitrogen N https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:25555 ratio Giest Frieda frieda_giest@hotmail.de 0000-0002-9252-6231 TOC/TN δ13C, organic carbon δ13C Corg ‰ PDB δ13C http://en.wikipedia.org/wiki/List_of_elements_by_stability_of_isotopes organic carbon Giest Frieda frieda_giest@hotmail.de 0000-0002-9252-6231 vs. VPDB δ13C Corg [‰ PDB] δ15N, organic matter δ15N OM ‰ air δ15N http://en.wikipedia.org/wiki/List_of_elements_by_stability_of_isotopes organic matter https://en.wikipedia.org/wiki/Organic_matter Giest Frieda frieda_giest@hotmail.de 0000-0002-9252-6231 raw δ15N OM [‰ air] Carbon, organic, total TOC kg/m**3 carbon C https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:27594 organic total https://www.oxforddictionaries.com/definition/american_english/total Density http://dbpedia.org/resource/Density Giest Frieda frieda_giest@hotmail.de 0000-0002-9252-6231 TOC [kg/m**3] Mercury Hg µg/kg mercury Giest Frieda frieda_giest@hotmail.de 0000-0002-9252-6231 Hg [µg/kg] CurationLevelC Enhanced curation https://wiki.pangaea.de/wiki/Curation_levels citable Biomarker coastal thermokarst land-ocean transition Organic carbon Permafrost Teshekpuk Lake author106424 author24420 author26967 author27272 author43620 author68181 author77501 author79817 basis5344 campaign3373082 campaign48823 curlevel30 event3175195 event3175196 event3175197 event3175198 event3175199 event3175200 geocode1 geocode1599 geocode1600 geocode1601 inst183 inst21044 inst21456 inst33 license21 method11494 method11840 param115 param156502 param16065 param3 param4 param516576 param635 param67 param73 param735 param87410 pi106424 project4433 ref126908 term1073089 term1073092 term1073131 term2663825 term353 term38253 term38263 term38477 term38525 term38548 term38561 term40477 term41056 term43792 term43794 term43863 term44419 term47310 term47563 term52180 term72828 term74459 term74460