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  • AWI_Envi; AWI_PerDyn; AWI_Perma; Permafrost Research; Permafrost Research (Periglacial Dynamics) @ AWI; Polar Terrestrial Environmental Systems @ AWI  (4)
  • -; AK-Land_2004_Fairbanks_Barrow; AK-Land_2004_Fairbanks_Barrow_all; AK-Land_2006_Fairbanks_Barrow; AK-Land_2006_Fairbanks_Barrow_all; Alaska 2004; Alaska 2006; AWI Arctic Land Expedition; Barrow_transect; Barrow, Alaska, USA; Coefficient of determination; Depth, bottom/max; DEPTH, ice/snow; Depth, top/min; Deuterium excess; Deuterium excess, maximum; Deuterium excess, minimum; Deuterium excess, standard deviation; Mass spectrometer Finnigan Delta-S; MON; Monitoring; MULT; Multiple investigations; Sample amount; Sample type; Slope; δ18O, standard deviation; δ18O, water; δ Deuterium, maximum; δ Deuterium, minimum; δ Deuterium, standard deviation; δ Deuterium, water  (1)
  • 551.3  (1)
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  • 1
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    Gravimetric ice content of sediment samples and stable isotope characteristics for ice wedges and for pore and segregrated ice at the Oyogos Yar coast, Northeast Siberian Arctic (2017)
    PANGAEA
    In:  Supplement to: Opel, Thomas; Wetterich, Sebastian; Meyer, Hanno; Dereviagin, Alexander Yu; Fuchs, Margret C; Schirrmeister, Lutz (2017): Ground-ice stable isotopes and cryostratigraphy reflect late Quaternary palaeoclimate in the Northeast Siberian Arctic (Oyogos Yar coast, Dmitry Laptev Strait). Climate of the Past, 13(6), 587-611, https://doi.org/10.5194/cp-13-587-2017
    Details
    Publication Date: 2023-03-16
    Description: To reconstruct palaeoclimate and palaeonvironmental conditions in the Northeast Siberian Arctic, we studied late Quaternary permafrost at the Oyogos Yar coast (Dmitry Laptev Strait). New infrared stimulated luminescence ages for distinctive floodplain deposits of the Kuchchugui Suite (112.5±9.6 kyr) and thermokarst-lake deposits of the Krest Yuryakh Suite (102.4±9.7 kyr), respectively, provide new substantial geochronological data and shed light on the landscape history of the Dmitry Laptev Strait region during the Marine Isotope Stage (MIS) 5. Ground ice stable-isotope data are presented together with cryolithological information for eight cryostratigraphic units and are complemented by data from nearby Bol'shoy Lyakhovsky Island. Our combined record of ice-wedge stable isotopes as proxy for past winter climate conditions covers about 200 thousand years and is supplemented by stable isotopes of pore and segregated ice which reflect annual climate conditions overprinted by freezing processes. Our ice wedge stable-isotope data indicate substantial variations in Northeast Siberian Arctic winter climate conditions during the late Quaternary, in particular between Glacial and Interglacial but also over the last millennia to centuries. Stable isotope values of Ice Complex ice wedges indicate cold to very cold winter temperatures about 200 kyr ago (MIS7), very cold winter conditions about 100 kyr ago (MIS5), very cold to moderate winter conditions between about 60 and 30 kyr ago, and extremely cold winter temperatures during the Last Glacial Maximum (MIS2). Much warmer winter conditions are reflected by extensive thermokarst development during the MIS5c and by Holocene ice-wedge stable-isotopes. Modern ice-wedge stable isotopes are most enriched and testify the recent winter warming in the Arctic. Hence, ice-wedge based reconstructions of changes in winter climate conditions add substantial information to those derived from paleoecological proxies stored in permafrost and allow for distinguishing between seasonal trends of past climate dynamics. Future progress in ice-wedge dating and an improved temporal resolution of ice-wedge derived climate information may help to fully explore the palaeoclimatic potential of ice wedges.
    Keywords: AWI_Envi; AWI_PerDyn; AWI_Perma; Permafrost Research; Permafrost Research (Periglacial Dynamics) @ AWI; Polar Terrestrial Environmental Systems @ AWI
    Type: Dataset
    Format: application/zip, 2 datasets
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    DATA PANGAEA
  • 2
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    Sediment, ground ice and micropaleontological data from the pingo exposure 'Shirokovsky Kholm' (Kolyma Lowland, NE Siberia) sampled in 2012 (2017)
    PANGAEA
    In:  Supplement to: Wetterich, Sebastian; Schirrmeister, Lutz; Nazarova, Larisa B; Palagushkina, Olga V; Bobrov, Anatoly A; Pogosyan, Lilith; Savelieva, Larissa A; Syrykh, Luidmila S; Matthes, Heidrun; Fritz, Michael; Günther, Frank; Opel, Thomas; Meyer, Hanno (2018): Holocene thermokarst and pingo development in the Kolyma Lowland (NE Siberia). Permafrost and Periglacial Processes, 29(3), 182-198, https://doi.org/10.1002/ppp.1979
    Details
    Publication Date: 2024-02-06
    Description: Ground ice and sedimentary records of a pingo exposure reveal insights into Holocene permafrost, landscape and climate dynamics. Early to mid‐Holocene thermokarst lake deposits contain rich floral and faunal paleoassemblages, which indicate lake shrinkage and decreasing summer temperatures (chironomid‐based TJuly) from 10.5 to 3.5 cal kyr BP with the warmest period between 10.5 and 8 cal kyr BP. Talik refreezing and pingo growth started about 3.5 cal kyr BP after disappearance of the lake. The isotopic composition of the pingo ice (δ18O − 17.1 ± 0.6‰, δD −144.5 ± 3.4‰, slope 5.85, deuterium excess −7.7± 1.5‰) point to the initial stage of closed‐system freezing captured in the record. A differing isotopic composition within the massive ice body was found (δ18O − 21.3 ± 1.4‰, δD −165 ± 11.5‰, slope 8.13, deuterium excess 4.9± 3.2‰), probably related to the infill of dilation cracks by surface water with quasi‐meteoric signature. Currently inactive syngenetic ice wedges formed in the thermokarst basin after lake drainage. The pingo preserves traces of permafrost response to climate variations in terms of ground‐ice degradation (thermokarst) during the early and mid‐Holocene, and aggradation (wedge‐ice and pingo‐ice growth) during the late Holocene.
    Keywords: AWI_Envi; AWI_PerDyn; AWI_Perma; Permafrost Research; Permafrost Research (Periglacial Dynamics) @ AWI; Polar Terrestrial Environmental Systems @ AWI
    Type: Dataset
    Format: application/zip, 11 datasets
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    DATA PANGAEA
  • 3
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    Stable water isotope data from ice wedges, expedition Lena 2000 (2017)
    PANGAEA
    Details
    Publication Date: 2024-02-06
    Description: Stable water isotope signature measured from ice wedges in the Lena Delta, Bykovsky Peninsula. Samples were taken during espedition Lena 2000.
    Keywords: AWI_Envi; AWI_PerDyn; AWI_Perma; Permafrost Research; Permafrost Research (Periglacial Dynamics) @ AWI; Polar Terrestrial Environmental Systems @ AWI
    Type: Dataset
    Format: application/zip, 4 datasets
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  • 4
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    (Table 3) Stable water isotope ratios of ice wedges, texture ice and recent snow at Barrow (2010)
    PANGAEA
    Details
    Publication Date: 2024-02-06
    Keywords: -; AK-Land_2004_Fairbanks_Barrow; AK-Land_2004_Fairbanks_Barrow_all; AK-Land_2006_Fairbanks_Barrow; AK-Land_2006_Fairbanks_Barrow_all; Alaska 2004; Alaska 2006; AWI Arctic Land Expedition; Barrow_transect; Barrow, Alaska, USA; Coefficient of determination; Depth, bottom/max; DEPTH, ice/snow; Depth, top/min; Deuterium excess; Deuterium excess, maximum; Deuterium excess, minimum; Deuterium excess, standard deviation; Mass spectrometer Finnigan Delta-S; MON; Monitoring; MULT; Multiple investigations; Sample amount; Sample type; Slope; δ18O, standard deviation; δ18O, water; δ Deuterium, maximum; δ Deuterium, minimum; δ Deuterium, standard deviation; δ Deuterium, water
    Type: Dataset
    Format: text/tab-separated-values, 122 data points
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    DATA PANGAEA
  • 5
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    Ancient DNA dataset, pollen and non-pollen palynomorphs of four permafrost cores hand-pieces, Bol'shoy Lyakhovsky Island (2017)
    PANGAEA
    In:  Supplement to: Zimmermann, Heike Hildegard; Raschke, Elena; Epp, Laura Saskia; Stoof-Leichsenring, Kathleen Rosmarie; Schirrmeister, Lutz; Schwamborn, Georg; Herzschuh, Ulrike (2017): The History of Tree and Shrub Taxa on Bol'shoy Lyakhovsky Island (New Siberian Archipelago) since the Last Interglacial Uncovered by Sedimentary Ancient DNA and Pollen Data. Genes, 8(10), 273, https://doi.org/10.3390/genes8100273
    Details
    Publication Date: 2024-06-12
    Description: has to submitted by author
    Keywords: AWI_Envi; AWI_PerDyn; AWI_Perma; Permafrost Research; Permafrost Research (Periglacial Dynamics) @ AWI; Polar Terrestrial Environmental Systems @ AWI
    Type: Dataset
    Format: application/zip, 6 datasets
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    DATA PANGAEA
  • 6
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    Thermo‐erosional valleys in Siberian ice‐rich permafrost (2021)
    Details
    Publication Date: 2021-07-04
    Description: Thermal erosion is a major mechanism of permafrost degradation, resulting in characteristic landforms. We inventory thermo‐erosional valleys in ice‐rich coastal lowlands adjacent to the Siberian Laptev Sea based on remote sensing, Geographic Information System (GIS), and field investigations for a first regional assessment of their spatial distribution and characteristics. Three study areas with similar geological (Yedoma Ice Complex) but diverse geomorphological conditions vary in valley areal extent, incision depth, and branching geometry. The most extensive valley networks are incised deeply (up to 35 m) into the broad inclined lowland around Mamontov Klyk. The flat, low‐lying plain forming the Buor Khaya Peninsula is more degraded by thermokarst and characterized by long valleys of lower depth with short tributaries. Small, isolated Yedoma Ice Complex remnants in the Lena River Delta predominantly exhibit shorter but deep valleys. Based on these hydrographical network and topography assessments, we discuss geomorphological and hydrological connections to erosion processes. Relative catchment size along with regional slope interact with other Holocene relief‐forming processes such as thermokarst and neotectonics. Our findings suggest that thermo‐erosional valleys are prominent, hitherto overlooked permafrost degradation landforms that add to impacts on biogeochemical cycling, sediment transport, and hydrology in the degrading Siberian Yedoma Ice Complex.
    Description: Christiane Nüsslein‐Volhard Foundation
    Description: European Research Council http://dx.doi.org/10.13039/501100000781
    Description: German Academic Exchange Service DAAD P.R.I.M.E.
    Description: Helmholtz‐Gemeinschaft http://dx.doi.org/10.13039/501100001656
    Description: Polar Geospatial Center, NSF‐OPP awards
    Description: RapidEye Science Archive (RESA)
    Description: Russian Foundation for Basic Research http://dx.doi.org/10.13039/501100002261
    Description: Studienstiftung des Deutschen Volkes http://dx.doi.org/10.13039/501100004350
    Description: Universität Potsdam http://dx.doi.org/10.13039/501100004238
    Description: BMBF KoPf
    Keywords: 551.3 ; geomorphology ; periglacial landscapes ; permafrost degradation ; thermal erosion ; valley distribution ; Yedoma Ice Complex
    Type: article
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