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Sea-ice thickness, snow depth, freeboard, scattering layer thickness, and sea-ice type at sea ice station PS78/230-1

Publication Date
DOI: 10.1594/pangaea.786869
  • Arctic Ocean
  • Ark-Xxvi/3
  • Distance
  • Relative
  • X
  • Distance
  • Relative
  • Y
  • Draft
  • Freeboard
  • Ice Station
  • Ice Type
  • Layer Thickness
  • Polarstern
  • Ps78/230-1
  • Ps78 Transarc
  • Sea Ice Thickness
  • Snow Thickness


AFIN_IGS_2014_final_small Mario Hoppmann 1 , Marcel Nicolaus 1 , Priska Hunkeler 1 , Stephan Paul 2 , Petra Heil 3 Background Acknowledgements The authors are most grateful to the overwintering teams 2010 - 2014 at Neumayer III for their commitment and their outstanding field work. Mario Hoppmann would like to thank the World Climate Research Programme (WCRP), the Climate and Cryosphere (CliC) Office and the POLMAR graduate school for travel support. This study was funded by the German Research Council (DFG) in its priority program “Antarctic Research with comparative investigations in Arctic ice areas” (NI 1092/2, HE 2740/12 ), and the Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung (AWI). Continuous observations of sea-ice and its snow cover are crucial to understand key processes and predict changes in the polar regions. In the pack-ice zone of the Sou- thern Ocean, gathering these data is most challenging due to logistical constraints. In contrast, immobile sea ice fastened to the coast and ice shelves around Antarctica is relatively easy to probe from nearby coastal stations. During IPY 2007/08, several in- ternational partners grouped together in the Antarctic Fast Ice Network (AFIN) to pro- vide the scientific community with continuous observations of fast-ice areas around the Antarctic coastline. Since 2010/11, we contribute to AFIN with a suite of measurements on the seasonal fast ice of Atka Bay, in the eastern Weddell Sea. Through its geographical location near the Ekström Ice Shelf, the fast ice is influenced by ocean-ice shelf interaction and is ge- nerally covered with a thick and highly variable snow cover. Here we present the con- cept and selected results of our ongoing monitoring program, where we combine tra- ditional sea-ice measurements (drillings, coring, snow pits) with automated stations/buoys and remote sensing by satellites (MODIS, SAR). 1 Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meersforschung

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