The Cryosphere
The Cryosphere
TC
Articles | Volume 14, issue 4
Articles | Volume 14, issue 4
https://doi.org/10.5194/tc-14-1187-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/tc-14-1187-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 14, issue 4
Research article
 | 
08 Apr 2020
Research article |  | 08 Apr 2020

How useful is snow accumulation in reconstructing surface air temperature in Antarctica? A study combining ice core records and climate models

Quentin Dalaiden, Hugues Goosse, François Klein, Jan T. M. Lenaerts, Max Holloway, Louise Sime, and Elizabeth R. Thomas

Supplement

https://doi.org/10.5194/tc-14-1187-2020-supplement

Data sets

Historical climate model output of ECHAM5-wiso from 1871–2011 at T106 resolution N. J. Steiger https://doi.org/10.5281/zenodo.1249604

PAGES Antarctica2k Temperature Reconstructions B. Stenni, M. A. J. Curran, N. J. Abram, A. J. Orsi, S. Goursaud, V. Masson-Delmotte, R. Neukom, H. Goosse, D. V. Divine, T. D. van Ommen, E. J. Steig, D. A. Dixon, E. R. Thomas, N. A. N. Bertler, E. Isaksson, A. A. Ekaykin, M. Werner, and M. Frezzotti https://www.ncdc.noaa.gov/paleo-search/study/22589

Reconstruction of Antarctic near-surface temperatures (1958–2012) J. P. Nicolas and D. H. Bromwich http://polarmet.osu.edu/datasets/Antarctic_recon/

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Short summary
Large uncertainties remain in Antarctic surface temperature reconstructions over the last millennium. Here, the analysis of climate model outputs reveals that snow accumulation is a more relevant proxy for surface temperature reconstructions than δ18O. We use this finding in data assimilation experiments to compare to observed surface temperatures. We show that our continental temperature reconstruction outperforms reconstructions based on δ18O, especially for East Antarctica.
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