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  • 2020-2024  (27)
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  • 11
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    Branched glyerol diakyl glyerol tetraether (brGDGT) concentration in thawed sediments underneath a Yedoma and Alas thermokarst lake in Eastern Siberia (2021)
    PANGAEA
    Details
    Publication Date: 2024-06-12
    Description: This dataset describs two 17 m long sediment cores taken from beneath two thermokarst lakes in the Yukechi Alas, Central Yakutia, Russia. The first core was taken from below an Alas thermokarst lake (YU-L7; 61.76397°N, 130.46442°E) and the second core below and Yedoma lake (YU-L15; 61.76086°N, 130.47466°E). The dataset presents the branched glyerol diakyl glyerol tetraether (brGDGT) concentrations from sediment cores YUL7 and YU-L15 which are given in µg/g sediment. The branched glycerol dialkyl glycerol tetraethers were measured in the NSO fraction using a Shimadzu LC-10AD high-performance liquid chromatograph coupled to a Finnigan TSQ 7000 mass spectrometer via an atmospheric pressure chemical ionization interface.
    Keywords: Alas lake; Arctic; AWI Arctic Land Expedition; Biomarkers; Branched glycerol dialkyl glycerol tetraether, Ia, per unit sediment mass; Branched glycerol dialkyl glycerol tetraether, Ib, per unit sediment mass; Branched glycerol dialkyl glycerol tetraether, IIa, per unit sediment mass; Branched glycerol dialkyl glycerol tetraether, IIb, per unit sediment mass; Branched glycerol dialkyl glycerol tetraether, IIIa, per unit sediment mass; Branched glycerol dialkyl glycerol tetraether, IIIb, per unit sediment mass; Carbon in Permafrost / Kohlenstoff im Permafrost; Central_Yakutia_Yukechi_2015; Central Yakutia; CLICCS; Cluster of Excellence: Climate, Climatic Change, and Society; Core; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; Event label; greenhouse gas production; KoPF; Liquid chromatography-mass spectrometry (LC-MS); PETA-CARB; Rapid Permafrost Thaw in a Warming Arctic and Impacts on the Soil Organic Carbon Pool; RCDT; RU-Land_2015_CentralYakutia_Yuke; Sample ID; talik; thawed permafrost; thermokarst lake; Truck mounted rotary drill; Yedoma deposits; Yedoma lake; YUK15-YU-L15; YUK15-YU-L7
    Type: Dataset
    Format: text/tab-separated-values, 170 data points
    Location Call Number Expected Availability
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    DATA PANGAEA
  • 12
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    Simulation of greenhouse gas production during key transitions in a coastal thermokarst landscape in an anaerobic incubation experiment with samples from Bykovsky Peninsula, Siberia (2024)
    PANGAEA
    Details
    Publication Date: 2024-06-12
    Description: The dataset presents the greenhouse gas production (CO2 and CH4) from sediment of a terrestrial permafrost outcrop (Byk14-A-1; 71.85175°N, 129.350883°E), the thermokarst lake Goltsovoye (PG2412 (TKL), 71.74515°N, 129.30217°E), the nearly-closed Polar Fox Lagoon (PG2411 (LAG1), 71.743056°N, 129.337778°E) and the semi-open Uomullyakh Lagoon (PG2410-1 (LAG1), 71.730833°N, 129.2725°E). We incubated the samples anaerobically at 4 °C under fresh (c=0 g/L), brackish (c=13g/L) and marine (36g/L) conditions for one year and measured carbon dioxide (CO2) and methane (CH4) concentrations regularly in a 250 µL subsample using gas chromatography with an Agilent GC 7890A equipped with an Agilent HP-PLOT Q column. Cumulative CO2 and CH4 concentrations and production rates per day are given over time for all samples with three replicates each per gram of dry weight and normalised to gram of soil organic carbon (SOC).
    Keywords: Anaerobic incubation; Arctic permafrost coasts; AWI Arctic Land Expedition; Bykovsky_2017_spring; Carbon dioxide, production, anaerobic, per mass soil organic carbon; Carbon dioxide, production, anaerobic, per soil dry mass; Carbon dioxide, production rate, per mass soil organic carbon; Carbon dioxide, production rate, per soil dry mass; carbon dioxide production; Core; Date; Day of experiment; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; Event label; EXPO; Exposure; Goltsovoye Lake, Siberia, Russia; Laboratory experiment; Lena_Delta_Sobo-Byk_2014; Methane, production, anaerobic, per mass soil organic carbon; Methane, production, anaerobic, per soil dry mass; Methane, production rate, per mass soil organic carbon; Methane, production rate, per soil dry mass; methane production; Mobile drilling rig, Geotechnika, URB-4T; PETA-CARB; PG2410-1; PG2411-1; PG2412-1; PG-BYK14-1-A; Polar Fox Lagoon; Rapid Permafrost Thaw in a Warming Arctic and Impacts on the Soil Organic Carbon Pool; Replicate; RU-Land_2014_Lena_Sobo-Byk; RU-Land_2017_Lena_Bykovsky; Sample ID; Sediment type; thermokarst lagoon formation; thermokarst lakes; Treatment; Type of study; Uomullyakh Lagoon
    Type: Dataset
    Format: text/tab-separated-values, 18900 data points
    Location Call Number Expected Availability
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    DATA PANGAEA
  • 13
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    Active layer temperature profiles from thaw slump soils in the Lena Delta, Russia measured in 2019 (2021)
    PANGAEA
    Details
    Publication Date: 2024-06-12
    Description: The dataset comprises the active layer temperature profiles measured at different thaw slump soils in the Lena Delta, Siberia, Russia in July 2019.
    Keywords: AWI Arctic Land Expedition; Carbon in Permafrost / Kohlenstoff im Permafrost; carbon turnover; CARBOPERM; CH4 flux; CLICCS; CliSAP; Cluster of Excellence: Climate, Climatic Change, and Society; CO2 flux; DATE/TIME; DEPTH, soil; Event label; Formation, turnover and release of carbon in Siberian permafrost landscapes; heterotrophic respiration; Integrated Climate System Analysis and Prediction; KoPF; Kur 4; Kur 6; Kur 7; Kur 9; L19_SF3; L19_SF6; L19_TM1; L19_TM2; LATITUDE; Lena 2019; LONGITUDE; Permafrost; RU-Land_2019_Lena; Siberian Arctic; SOIL; Soil profile; Station label; Temperature, soil
    Type: Dataset
    Format: text/tab-separated-values, 520 data points
    Location Call Number Expected Availability
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    DATA PANGAEA
  • 14
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    Active layer temperature profiles from thaw slump soils in the Lena Delta, Russia measured in 2016 (2021)
    PANGAEA
    Details
    Publication Date: 2024-06-12
    Description: The dataset comprises the active layer temperature profiles measured at different thaw slump soils in the Lena Delta, Siberia, Russia in July 2016.
    Keywords: AWI Arctic Land Expedition; Carbon in Permafrost / Kohlenstoff im Permafrost; carbon turnover; CARBOPERM; CH4 flux; CLICCS; CliSAP; Cluster of Excellence: Climate, Climatic Change, and Society; CO2 flux; DATE/TIME; DEPTH, soil; Event label; Formation, turnover and release of carbon in Siberian permafrost landscapes; heterotrophic respiration; Integrated Climate System Analysis and Prediction; KoPF; Kur 2; Kur 4; Kur 5; Kur 6; Kur 7; Kur 8; Kur 9; L16_SF1; L16_SF3; L16_SF4; L16_SF5; L16_SF6; L16_TM1; L16_TM2; LATITUDE; Lena2016_spring, Lena2016_summer; LONGITUDE; Permafrost; RU-Land_2016_Lena; Siberian Arctic; SOIL; Soil profile; Station label; Temperature, soil
    Type: Dataset
    Format: text/tab-separated-values, 1468 data points
    Location Call Number Expected Availability
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    DATA PANGAEA
  • 15
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    Air temperature, thaw depth and total organic carbon pools in the active layer from thaw slump soils in the Lena Delta, Russia measured in 2019 (2021)
    PANGAEA
    Details
    Publication Date: 2024-06-12
    Description: The dataset comprises the thaw depth, the total organic carbon pools in the active layer measured at different thaw slump soils in the Lena Delta, Siberia, Russia in July 2019.
    Keywords: AWI Arctic Land Expedition; Carbon in Permafrost / Kohlenstoff im Permafrost; carbon turnover; CARBOPERM; CH4 flux; CLICCS; CliSAP; Cluster of Excellence: Climate, Climatic Change, and Society; CO2 flux; DATE/TIME; Event label; Formation, turnover and release of carbon in Siberian permafrost landscapes; heterotrophic respiration; Integrated Climate System Analysis and Prediction; KoPF; Kur 4; Kur 6; Kur 7; Kur 9; L19_SF3; L19_SF6; L19_TM1; L19_TM2; LATITUDE; Lena 2019; LONGITUDE; Permafrost; RU-Land_2019_Lena; Siberian Arctic; SOIL; Soil organic carbon storage; Soil profile; Station label; Temperature, air; Thaw depth of active layer
    Type: Dataset
    Format: text/tab-separated-values, 113 data points
    Location Call Number Expected Availability
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    DATA PANGAEA
  • 16
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    Biogeochemical parameters of thawed sediments underneath a Yedoma and Alas thermokarst lake in Eastern Siberia, version 2 (2022)
    PANGAEA
    Details
    Publication Date: 2024-06-12
    Description: This dataset describes two 17 m long sediment cores taken from beneath two thermokarst lakes in the Yukechi Alas, Central Yakutia, Russia. The first core was taken from below an Alas thermokarst lake (YU-L7; 61.76397°N, 130.46442°E) and the second core below and Yedoma lake (YU-L15; 61.76086°N, 130.47466°E). The dataset presents biogeochemical and biomarker parameters of sediment cores YU-L7 and YU-L15. Biogeochemical analyses include total carbon (TC) content, total organic carbon (TOC) content, total nitrogen (TN) content. Biomarker parameters include the n-alkane concentration, average chain length (ACL), carbon preference index (CPI), brGDGT concentration, archaeol concentration and the isoGDGT-0 concentration. The n-alkanes were measured in the aliphatic fraction by gas chromatography-mass spectromety using a Trace GC Ultra coupled to a DSQ MS. The branched and isoprenoid glycerol dialkyl glycerol tetraethers, as well as the dialkyl glycerol diether lipid (archaeol) were measured in the NSO fraction using a Shimadzu LC-10AD high-performance liquid chromatograph coupled to a Finnigan TSQ 7000 mass spectrometer via an atmospheric pressure chemical ionization interface. The pH soil is the sediment pH which was assessed by adding 6.12 mL of 0.01 M CaCl~2~ to ~2.5 g dried sediment and measuring with a Multilab 540 (WTW) at 20°C.
    Keywords: Alas lake; Archaeol per unit sediment mass; Arctic; AWI Arctic Land Expedition; Biomarkers; Calculated; Carbon, organic, total; Carbon, total; Carbon and nitrogen and sulfur (CNS) element analyzer, Elementar, Vario MAX; Carbon in Permafrost / Kohlenstoff im Permafrost; Carbon Preference Index, n-Alkanes; Central_Yakutia_Yukechi_2015; Central Yakutia; CLICCS; Cluster of Excellence: Climate, Climatic Change, and Society; Core; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; Element analyser (calculated by TC-TIC); Event label; Gas chromatograph-mass spectrometer; GC-MS; greenhouse gas production; Isoprenoid acyclic glycerol dialkyl glycerol tetraether per unit sediment mass; KoPF; Liquid chromatography-mass spectrometry (LC-MS); n-Alkane, average chain length; n-Alkane, total per unit sediment mass; Nitrogen, total; PETA-CARB; pH, porewater; pH, soil; Rapid Permafrost Thaw in a Warming Arctic and Impacts on the Soil Organic Carbon Pool; RCDT; RU-Land_2015_CentralYakutia_Yuke; Sample ID; Sum branched glycerol dialkyl glycerol tetraether, per unit sediment mass; talik; thawed permafrost; thermokarst lake; Truck mounted rotary drill; WTW MultiLab 540; Yedoma deposits; Yedoma lake; YUK15-YU-L15; YUK15-YU-L7
    Type: Dataset
    Format: text/tab-separated-values, 294 data points
    Location Call Number Expected Availability
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    DATA PANGAEA
  • 17
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    Carbon dioxide and and methane flux from thaw slump soils in the Lena Delta, Russia measured in 2016 and 2019 (2021)
    PANGAEA
    Details
    Publication Date: 2024-06-12
    Description: The dataset comprises in situ CO2 and CH4 fluxes from different non-vegetated soils in an active thaw slump in the Lena Delta, Siberia, Russia, measured in July 2019 and July 2019.
    Keywords: AWI Arctic Land Expedition; Carbon dioxide, flux, in mass CO2 carbon, per soil carbon mass; Carbon dioxide, flux, in mass CO2 carbon per area; Carbon in Permafrost / Kohlenstoff im Permafrost; carbon turnover; CARBOPERM; CH4 flux; CLICCS; CliSAP; Cluster of Excellence: Climate, Climatic Change, and Society; CO2 flux; DATE/TIME; Event label; Formation, turnover and release of carbon in Siberian permafrost landscapes; heterotrophic respiration; Integrated Climate System Analysis and Prediction; KoPF; Kur 2; Kur 4; Kur 5; Kur 6; Kur 7; Kur 8; Kur 9; L16_SF1; L16_SF3; L16_SF4; L16_SF5; L16_SF6; L16_TM1; L16_TM2; L19_SF3; L19_SF6; L19_TM1; L19_TM2; LATITUDE; Lena2016_spring, Lena2016_summer; Lena 2019; LONGITUDE; Methane, flux, in mass CH4 carbon, per soil carbon mass; Methane, flux, in mass CH4 carbon per area; Permafrost; RU-Land_2016_Lena; RU-Land_2019_Lena; Siberian Arctic; SOIL; Soil profile; Station label
    Type: Dataset
    Format: text/tab-separated-values, 1601 data points
    Location Call Number Expected Availability
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    DATA PANGAEA
  • 18
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    Biogeochemical parameters of thawed sediments underneath a Yedoma and Alas thermokarst lake in Eastern Siberia (2021)
    PANGAEA
    Details
    Publication Date: 2024-06-12
    Description: This dataset describes two 17 m long sediment cores taken from beneath two thermokarst lakes in the Yukechi Alas, Central Yakutia, Russia. The first core was taken from below an Alas thermokarst lake (YU-L7; 61.76397°N, 130.46442°E) and the second core below and Yedoma lake (YU-L15; 61.76086°N, 130.47466°E). The dataset presents biogeochemical and biomarker parameters of sediment cores YU-L7 and YU-L15. Biogeochemical analyses include total carbon (TC) content, total organic carbon (TOC) content, total nitrogen (TN) content. Biomarker parameters include the n-alkane concentration, average chain length (ACL), carbon preference index (CPI), brGDGT concentration, archaeol concentration and the isoGDGT-0 concentration. The n-alkanes were measured in the aliphatic fraction by gas chromatography-mass spectromety using a Trace GC Ultra coupled to a DSQ MS. The branched and isoprenoid glycerol dialkyl glycerol tetraethers, as well as the dialkyl glycerol diether lipid (archaeol) were measured in the NSO fraction using a Shimadzu LC-10AD high-performance liquid chromatograph coupled to a Finnigan TSQ 7000 mass spectrometer via an atmospheric pressure chemical ionization interface. The pH soil is the sediment pH which was assessed by adding 6.12 mL of 0.01 M CaCl~2~ to ~2.5 g dried sediment and measuring with a Multilab 540 (WTW) at 20°C.
    Keywords: Alas lake; Archaeol per unit sediment mass; Arctic; AWI Arctic Land Expedition; Biomarkers; Calculated; Carbon, organic, total; Carbon, total; Carbon and nitrogen and sulfur (CNS) element analyzer, Elementar, Vario MAX; Carbon in Permafrost / Kohlenstoff im Permafrost; Carbon Preference Index, n-Alkanes; Central_Yakutia_Yukechi_2015; Central Yakutia; CLICCS; Cluster of Excellence: Climate, Climatic Change, and Society; Core; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; Element analyser (calculated by TC-TIC); Event label; Gas chromatograph-mass spectrometer; GC-MS; greenhouse gas production; Isoprenoid acyclic glycerol dialkyl glycerol tetraether per unit sediment mass; KoPF; Liquid chromatography-mass spectrometry (LC-MS); n-Alkane, average chain length; n-Alkane, total per unit sediment mass; Nitrogen, total; PETA-CARB; pH, porewater; pH, soil; Rapid Permafrost Thaw in a Warming Arctic and Impacts on the Soil Organic Carbon Pool; RCDT; RU-Land_2015_CentralYakutia_Yuke; Sample ID; Sum branched glycerol dialkyl glycerol tetraether, per unit sediment mass; talik; thawed permafrost; thermokarst lake; Truck mounted rotary drill; WTW MultiLab 540; Yedoma deposits; Yedoma lake; YUK15-YU-L15; YUK15-YU-L7
    Type: Dataset
    Format: text/tab-separated-values, 294 data points
    Location Call Number Expected Availability
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    DATA PANGAEA
  • 19
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    Dissolved organic carbon content in thawed sediments underneath a Yedoma and Alas thermokarst lake in Eastern Siberia (2021)
    PANGAEA
    Details
    Publication Date: 2024-06-12
    Description: This dataset describes two 17 m long sediment cores taken from beneath two thermokarst lakes in the Yukechi Alas, Central Yakutia, Russia. The first core was taken from below an Alas thermokarst lake (YU-L7; 61.76397°N, 130.46442°E) and the second core below and Yedoma lake (YU-L15; 61.76086°N, 130.47466°E). The dataset presents the dissolved organic carbon (DOC) content from sediment cores YU-L7 and YU-L15. The DOC was measured as non-purgeable organic carbon fraction and is expressed in mg/L.
    Keywords: Alas lake; Arctic; AWI Arctic Land Expedition; Biomarkers; Carbon, organic, dissolved; Carbon in Permafrost / Kohlenstoff im Permafrost; Central_Yakutia_Yukechi_2015; Central Yakutia; CLICCS; Cluster of Excellence: Climate, Climatic Change, and Society; Core; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; Event label; greenhouse gas production; KoPF; PETA-CARB; Rapid Permafrost Thaw in a Warming Arctic and Impacts on the Soil Organic Carbon Pool; RCDT; RU-Land_2015_CentralYakutia_Yuke; talik; thawed permafrost; thermokarst lake; Truck mounted rotary drill; Yedoma deposits; Yedoma lake; YUK15-YU-L15; YUK15-YU-L7
    Type: Dataset
    Format: text/tab-separated-values, 228 data points
    Location Call Number Expected Availability
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    DATA PANGAEA
  • 20
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    n-Alkane concentration in thawed sediments underneath a Yedoma and Alas thermokarst lake in Eastern Siberia (2021)
    PANGAEA
    Details
    Publication Date: 2024-06-12
    Description: This dataset describes two 17 m long sediment cores taken from beneath two thermokarst lakes in the Yukechi Alas, Central Yakutia, Russia. The first core was taken from below an Alas thermokarst lake (YU-L7; 61.76397°N, 130.46442°E) and the second core below and Yedoma lake (YU-L15; 61.76086°N, 130.47466°E). The dataset presents the n-alkane data from sediment cores YU-L7 and YUL15. Concentrations of n-alkanes in the range n-C16 to n-C37 are given in µg/g sediment. The n-alkanes were measured in the aliphatic fraction by gas chromatography-mass spectromety using a Trace GC Ultra coupled to a DSQ MS.
    Keywords: Alas lake; Arctic; AWI Arctic Land Expedition; Biomarkers; Carbon in Permafrost / Kohlenstoff im Permafrost; Central_Yakutia_Yukechi_2015; Central Yakutia; CLICCS; Cluster of Excellence: Climate, Climatic Change, and Society; Core; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; Event label; Gas chromatograph-mass spectrometer; GC-MS; greenhouse gas production; KoPF; n-Alkane C16, per unit sediment mass; n-Alkane C17, per unit sediment mass; n-Alkane C18, per unit sediment mass; n-Alkane C19, per unit sediment mass; n-Alkane C20, per unit sediment mass; n-Alkane C21, per unit sediment mass; n-Alkane C22, per unit sediment mass; n-Alkane C23, per unit sediment mass; n-Alkane C24, per unit sediment mass; n-Alkane C25, per unit sediment mass; n-Alkane C26, per unit sediment mass; n-Alkane C27, per unit sediment mass; n-Alkane C28, per unit sediment mass; n-Alkane C29, per unit sediment mass; n-Alkane C30, per unit sediment mass; n-Alkane C31, per unit sediment mass; n-Alkane C32, per unit sediment mass; n-Alkane C33, per unit sediment mass; n-Alkane C34, per unit sediment mass; n-Alkane C35, per unit sediment mass; n-Alkane C36, per unit sediment mass; n-Alkane C37, per unit sediment mass; PETA-CARB; Rapid Permafrost Thaw in a Warming Arctic and Impacts on the Soil Organic Carbon Pool; RCDT; RU-Land_2015_CentralYakutia_Yuke; Sample ID; talik; thawed permafrost; thermokarst lake; Truck mounted rotary drill; Yedoma deposits; Yedoma lake; YUK15-YU-L15; YUK15-YU-L7
    Type: Dataset
    Format: text/tab-separated-values, 520 data points
    Location Call Number Expected Availability
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    DATA PANGAEA
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