Articles | Volume 9, issue 3
The Cryosphere, 9, 925–944, 2015
https://doi.org/10.5194/tc-9-925-2015
The Cryosphere, 9, 925–944, 2015
https://doi.org/10.5194/tc-9-925-2015

Research article 07 May 2015

Research article | 07 May 2015

Climatic signals from 76 shallow firn cores in Dronning Maud Land, East Antarctica

S. Altnau et al.

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Cited articles

Anschütz, H., Müller, K., Isaksson, E., McConnell, J. R., Fischer, H., Miller, H., Albert, M., and Winther, J.-G.: Revisiting sites of the South Pole Queen Maud Land Traverses in East Antarctica: accumulation data from shallow firn cores, J. Geophys. Res., 114, D24106, https://doi.org/10.1029/2009JD012204, 2009.
Anschütz, H., Sinisalo, A., Isaksson, E., McConnell, J. R., Hamran, S.-E., Bisiaux, M. M., Pasteris, D., Neumann, T. A., and Winther, J.-G.: Variation of accumulation rates over the last eight centuries on the East Antarctic Plateau derived from volcanic signals in ice cores, J. Geophys. Res., 116, D20103, https://doi.org/10.1029/2011JD015753, 2011.
Bromwich, D. H., Nicolas, J., Monaghan, A. J., Lazzara, M. A., Keller, L. M., Weidner, G. A., and Wilson, A. B.: Central West Antarctica among the most rapidly warming regions on Earth, Nat. Geosci., 6, 139–144, 2013.
Divine, D. V., Isaksson, E., Kaczmarska, M., Godtliebsen, F., Oerter, H., Schlosser, E., Johnson, S. J., van den Broeke, M. R., and van de Wal, R. S. W.: Tropical P}acific – high latitude south Atlantic teleconnections as seen in \chem{\delta^18O variability in Antarctic coastal ice cores, J. Geophys. Res., 114, D11112, https://doi.org/10.1029/2008JD010475, 2009.
EPICA Community Members: One-to-one coupling of glacial climate variability in Greenland and Antarctica, Nature, 444, 195–198, 2006.
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Short summary
The first comprehensive study of a set of 76 firn cores in Dronning Maud Land was carried out. The δ18O of both the plateau and the ice shelf cores exhibit a slight positive trend over the second half of the 20th century. The SMB has a negative trend in the ice shelf cores, but increases on the plateau. Comparison with meteorological data revealed that for the ice shelf regions, atmospheric dynamic effects are more important, while on the plateau, thermodynamic effects predominate.