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Discussion papers | Copyright
https://doi.org/10.5194/essd-2018-37
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

  28 Mar 2018

28 Mar 2018

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This discussion paper is a preprint. A revision of this manuscript was accepted for the journal Earth System Science Data (ESSD) and is expected to appear here in due course.

Subglacial topography, ice thickness, and bathymetry of Kongsfjorden, northwestern Svalbard

Katrin Lindbäck1, Jack Kohler1, Rickard Pettersson2, Christopher Nuth3, Kirsty Langley4, Alexandra Messerli1, Dorothée Vallot2, Kenichi Matsuoka1, and Ola Brandt5 Katrin Lindbäck et al.
  • 1Norwegian Polar Insitute, Framsentret, Postboks 6606, Langnes, 9296 Tromsø, Norway
  • 2Department of Earth Sciences, Air, Water, and Landscape Science, Uppsala University, Villavägen 16, 752 36 Uppsala, Sweden
  • 3University of Oslo, Postboks 1047 Blindern, 0316 Oslo, Norway
  • 4Asiaq Greenland Survey, Postboks 1003, 3900 Nuuk, Greenland
  • 5Norwegian Coastal Administration, Kystveien 30, 4841 Arendal, Norway

Abstract. Svalbard tidewater glaciers are retreating, which will affect fjord circulation and ecosystems when glacier fronts become land-terminating. We present high-resolution (150m) digital elevation models of subglacial topography and ice thickness of five tidewater glaciers in Kongsfjorden (1100km2), northwestern Spitsbergen, based on airborne and ground-based surveys. Three of the glaciers have the potential to retreat by ~10km before they become land-terminating. The compiled data set covers one of the most studied regions in Svalbard and will be valuable for future studies of glacier dynamics, geology, hydrology and fjord circulation. The data set is freely available at Norwegian Polar Data Centre (doi: 10.21334/npolar.2017.702ca4a7).

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Katrin Lindbäck et al.
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Subglacial topography, ice thickness, and bathymetry of Kongsfjorden, northwestern Svalbard K. Lindbäck, J. Kohler, R. Pettersson, C. Nuth, K. Langley, A. Messerli, D. Vallot, K. Matsuoka, and O. Brandt https://doi.org/10.21334/npolar.2017.702ca4a7

Katrin Lindbäck et al.
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Short summary
Tidewater glaciers terminate directly into the sea and the glacier fronts are important feeding areas for birds and marine mammals. Svalbard tidewater glaciers are retreating, which will affect fjord circulation and ecosystems when glacier fronts end on land. In this paper, we present digital maps of ice thickness and topography under five tidewater glaciers in Kongsfjorden, northwestern Svalbard, which will be useful in studies of future glacier changes in the area.
Tidewater glaciers terminate directly into the sea and the glacier fronts are important feeding...
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