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The Cryosphere An interactive open-access journal of the European Geosciences Union
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Volume 7, issue 3
The Cryosphere, 7, 817–821, 2013
https://doi.org/10.5194/tc-7-817-2013
© Author(s) 2013. This work is distributed under
the Creative Commons Attribution 3.0 License.
The Cryosphere, 7, 817–821, 2013
https://doi.org/10.5194/tc-7-817-2013
© Author(s) 2013. This work is distributed under
the Creative Commons Attribution 3.0 License.

Brief communication 08 May 2013

Brief communication | 08 May 2013

Brief communication "Global glacier volumes and sea level – small but systematic effects of ice below the surface of the ocean and of new local lakes on land"

W. Haeberli and A. Linsbauer W. Haeberli and A. Linsbauer
  • Geography Department, University of Zurich, Winterthurerstrasse 190, 8057 Zurich, Switzerland

Abstract. The potential contribution of glaciers and ice caps to sea level rise is usually calculated by comparing the estimated total ice volume with the surface area of the ocean. Part of this total ice volume, however, does not contribute to sea level rise because it is below the surface of the ocean or below the levels of future lakes on land. The present communication points to this so far overlooked phenomenon and provides a first order-of-magnitude estimate. It is shown that the effect is small (most likely about 1 to 6 cm sea level equivalent) but systematic, could primarily affect earlier stages of global glacier vanishing, and should therefore be adequately considered. Now-available techniques of slope-related high-resolution glacier bed modelling have the potential to provide more detailed assessments in the future.

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