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Datasets of project "Periglacial Dynamics @ AWI"

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  1. Pollen and pediastrum record from the southern Taymyr peninsula, northern Siberia

    Niemeyer, Bastian; Herzschuh, Ulrike; Pestryakova, Ludmila A
    Siberian arctic vegetation and lake water communities, known for their temperature dependence, are expected to be particularly impacted by recent climate change and high warming rates. However, decadal information on the nature and strength of recent vegetation change and its time lag to climate signals are rare. In this study, we present a 210Pb/137Cs dated pollen and Pediastrum species record from a unnamed lake in the south of the Taymyr peninsula covering the period from AD 1706 to 2011. Thirty-nine palynomorphs and 10 morphotypes of Pediastrum species were studied to assess changes in vegetation and lake conditions as probable responses...

  2. Pollen and pediastrum record from the southern Taymyr peninsula, northern Siberia

    Niemeyer, Bastian; Herzschuh, Ulrike; Pestryakova, Ludmila A
    Siberian arctic vegetation and lake water communities, known for their temperature dependence, are expected to be particularly impacted by recent climate change and high warming rates. However, decadal information on the nature and strength of recent vegetation change and its time lag to climate signals are rare. In this study, we present a 210Pb/137Cs dated pollen and Pediastrum species record from a unnamed lake in the south of the Taymyr peninsula covering the period from AD 1706 to 2011. Thirty-nine palynomorphs and 10 morphotypes of Pediastrum species were studied to assess changes in vegetation and lake conditions as probable responses...

  3. (Figure 6) Pediastrum record of sediment core 11-CH-17A, Taymyr peninsula, northern Siberia

    Niemeyer, Bastian; Herzschuh, Ulrike; Pestryakova, Ludmila A

  4. (Figure 6) Pediastrum record of sediment core 11-CH-17A, Taymyr peninsula, northern Siberia

    Niemeyer, Bastian; Herzschuh, Ulrike; Pestryakova, Ludmila A

  5. (Figure 4) Pollen record of sediment core 11-CH-17A, Taymyr peninsula, northern Siberia

    Niemeyer, Bastian; Herzschuh, Ulrike; Pestryakova, Ludmila A

  6. (Figure 4) Pollen record of sediment core 11-CH-17A, Taymyr peninsula, northern Siberia

    Niemeyer, Bastian; Herzschuh, Ulrike; Pestryakova, Ludmila A

  7. Age determination, sedimentological, biogeochemical, and plant macrofossils analyses of outcrop PG2038-1

    Schleusner, Philipp; Biskaborn, Boris Kolumban; Kienast, Frank; Wolter, Juliane; Subetto, Dmitry A; Diekmann, Bernhard
    Thermokarst lakes are a widespread feature of the Arctic tundra, in which highly dynamic processes are closely connected with current and past climate changes. We investigated late Quaternary sediment dynamics, basin and shoreline evolution, and environmental interrelations of Lake El'gene-Kyuele in the NE Siberian Arctic (latitude 71°17'N, longitude 125°34'E). The water-body displays thaw-lake characteristics cutting into both Pleistocene Ice Complex and Holocene alas sediments. Our methods are based on grain size distribution, mineralogical composition, TOC/N ratio, stable carbon isotopes and the analysis of plant macrofossils from a 3.5-m sediment profile at the modern eastern lake shore. Our results show two...

  8. Age determination, sedimentological, biogeochemical, and plant macrofossils analyses of outcrop PG2038-1

    Schleusner, Philipp; Biskaborn, Boris Kolumban; Kienast, Frank; Wolter, Juliane; Subetto, Dmitry A; Diekmann, Bernhard
    Thermokarst lakes are a widespread feature of the Arctic tundra, in which highly dynamic processes are closely connected with current and past climate changes. We investigated late Quaternary sediment dynamics, basin and shoreline evolution, and environmental interrelations of Lake El'gene-Kyuele in the NE Siberian Arctic (latitude 71°17'N, longitude 125°34'E). The water-body displays thaw-lake characteristics cutting into both Pleistocene Ice Complex and Holocene alas sediments. Our methods are based on grain size distribution, mineralogical composition, TOC/N ratio, stable carbon isotopes and the analysis of plant macrofossils from a 3.5-m sediment profile at the modern eastern lake shore. Our results show two...

  9. Age determination, sedimentological, biogeochemical, and plant macrofossils analyses of outcrop PG2038-1

    Schleusner, Philipp; Biskaborn, Boris K; Kienast, Frank; Wolter, Juliane; Subetto, Dmitry A; Diekmann, Bernhard
    Thermokarst lakes are a widespread feature of the Arctic tundra, in which highly dynamic processes are closely connected with current and past climate changes. We investigated late Quaternary sediment dynamics, basin and shoreline evolution, and environmental interrelations of Lake El'gene-Kyuele in the NE Siberian Arctic (latitude 71°17'N, longitude 125°34'E). The water-body displays thaw-lake characteristics cutting into both Pleistocene Ice Complex and Holocene alas sediments. Our methods are based on grain size distribution, mineralogical composition, TOC/N ratio, stable carbon isotopes and the analysis of plant macrofossils from a 3.5-m sediment profile at the modern eastern lake shore. Our results show two...

  10. (Table 2) Overview of identified plant macrofossils of outcrop PG2038-1

    Schleusner, Philipp; Biskaborn, Boris Kolumban; Kienast, Frank; Wolter, Juliane; Subetto, Dmitry A; Diekmann, Bernhard

  11. (Table 2) Overview of identified plant macrofossils of outcrop PG2038-1

    Schleusner, Philipp; Biskaborn, Boris Kolumban; Kienast, Frank; Wolter, Juliane; Subetto, Dmitry A; Diekmann, Bernhard

  12. (Table 2) Overview of identified plant macrofossils of outcrop PG2038-1

    Schleusner, Philipp; Biskaborn, Boris K; Kienast, Frank; Wolter, Juliane; Subetto, Dmitry A; Diekmann, Bernhard

  13. (Figure 3) Sedimentological and biogeochemical analyses of outcrop PG2038-1

    Schleusner, Philipp; Biskaborn, Boris Kolumban; Kienast, Frank; Wolter, Juliane; Subetto, Dmitry A; Diekmann, Bernhard

  14. (Figure 3) Sedimentological and biogeochemical analyses of outcrop PG2038-1

    Schleusner, Philipp; Biskaborn, Boris Kolumban; Kienast, Frank; Wolter, Juliane; Subetto, Dmitry A; Diekmann, Bernhard

  15. (Figure 3) Sedimentological and biogeochemical analyses of outcrop PG2038-1

    Schleusner, Philipp; Biskaborn, Boris K; Kienast, Frank; Wolter, Juliane; Subetto, Dmitry A; Diekmann, Bernhard

  16. (Table 1) Age determination of outcrop PG2038-1

    Schleusner, Philipp; Biskaborn, Boris Kolumban; Kienast, Frank; Wolter, Juliane; Subetto, Dmitry A; Diekmann, Bernhard

  17. (Table 1) Age determination of outcrop PG2038-1

    Schleusner, Philipp; Biskaborn, Boris Kolumban; Kienast, Frank; Wolter, Juliane; Subetto, Dmitry A; Diekmann, Bernhard

  18. (Table 1) Age determination of outcrop PG2038-1

    Schleusner, Philipp; Biskaborn, Boris K; Kienast, Frank; Wolter, Juliane; Subetto, Dmitry A; Diekmann, Bernhard

  19. Physico-chemical parameters of sediment core PG1972-1 (09-Tik-03) from a Tundra Lake, Northeastern Siberia

    Biskaborn, Boris Kolumban; Herzschuh, Ulrike; Bolshiyanov, Dimitry Yu; Savelieva, Larissa A; Zibulski, Romy; Diekmann, Bernhard
    Thermokarst lakes in the Siberian Arctic contain sediment archives that can be used for paleoenvironmental inference. Until now, however, there has been no study from the inner Lena River Delta with a focus on diatoms. The objective of this study was to investigate how the diatom community in a thermokarst lake responded to past limnogeological changes and what specific factors drove variations in the diatom assemblage. We analysed fossil diatom species, organic content, grain-size distribution and elemental composition in a sediment core retrieved in 2009 from a shallow thermokarst lake in the Arga Complex, western Lena River Delta. The core...

  20. Physico-chemical parameters of sediment core PG1972-1 (09-Tik-03) from a Tundra Lake, Northeastern Siberia

    Biskaborn, Boris Kolumban; Herzschuh, Ulrike; Bolshiyanov, Dimitry Yu; Savelieva, Larissa A; Zibulski, Romy; Diekmann, Bernhard
    Thermokarst lakes in the Siberian Arctic contain sediment archives that can be used for paleoenvironmental inference. Until now, however, there has been no study from the inner Lena River Delta with a focus on diatoms. The objective of this study was to investigate how the diatom community in a thermokarst lake responded to past limnogeological changes and what specific factors drove variations in the diatom assemblage. We analysed fossil diatom species, organic content, grain-size distribution and elemental composition in a sediment core retrieved in 2009 from a shallow thermokarst lake in the Arga Complex, western Lena River Delta. The core...

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