Blar i forfatter "Frederichs, Thomas"

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    • Evidence for a Highly Dynamic West Antarctic Ice Sheet During the Pliocene 

      Gohl, Karsten; Uenzelmann-Neben, Gabriele; Gille-Petzoldt, Johanna; Hillenbrand, Claus-Dieter; Klages, Johann P.; Bohaty, Steven M.; Passchier, Sandra; Frederichs, Thomas; Wellner, Julia S.; Lamb, Rachel; Leitchenkov, G; Klaus, A.; Kulhanek, D.; Bauersachs, T.; Courtillat, M.; Cowan, E.; De Lira Mota, Lira; Esteves, Mariana; Fegyveresi, J.; Gao, L.; Halberstadt, A.; Horikawa, K.; Iwai, M.; Kim, J.; King, T.; Penkrot, M.; Prebble, J.; Rahaman, W.; Reinardy, B.; Renaudie, J.; Robinson, D.; Scherer, R.; Siddoway, C.; Wu, L.; Yamane, M. (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-07-03)
      Major ice loss in the Amundsen Sea sector of the West Antarctic Ice Sheet (WAIS) is hypothesized to have triggered ice sheet collapses during past warm periods such as those in the Pliocene. International Ocean Discovery Program (IODP) Expedition 379 recovered continuous late Miocene to Holocene sediments from a sediment drift on the continental rise, allowing assessment of sedimentation processes ...

    • History of the Larsen C Ice Shelf reconstructed from sub–ice shelf and offshore sediments 

      Smith, James A.; Hillenbrand, Claus-Dieter; Subt, C.; Rosenheim, B.E.; Frederichs, Thomas; Ehrmann, Werner; Andersen, Thorbjørn Joest; Wacker, Lukas; Makinson, K.; Anker, P.; Venables, Emily Joanne; Nicholls, Keith W. (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-04-28)
      Because ice shelves respond to climatic forcing over a range of time scales, from years to millennia, an understanding of their long-term history is critically needed for predicting their future evolution. We present the first detailed reconstruction of the Larsen C Ice Shelf (LCIS), eastern Antarctic Peninsula (AP), based on data from sediment cores recovered from below and in front of the ice ...

    • Limited grounding-line advance onto the West Antarctic continental shelf in the easternmost Amundsen Sea Embayment during the last glacial period 

      Klages, Johann Philipp; Kuhn, Gerhard; Hillenbrand, Claus-Dieter; Smith, James; Graham, Alastair G C; Nitsche, F. O.; Frederichs, Thomas; Jernas, Patrycja Ewa; Gohl, Karsten; Wacker, Lukas (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-07-25)
      Precise knowledge about the extent of the West Antarctic Ice Sheet (WAIS) at the Last Glacial Maximum (LGM; c. 26.5–19 cal. ka BP) is important in order to 1) improve paleo-ice sheet reconstructions, 2) provide a robust empirical framework for calibrating paleo-ice sheet models, and 3) locate potential shelf refugia for Antarctic benthos during the last glacial period. However, reliable reconstructions ...