Articles | Volume 14, issue 2
The Cryosphere, 14, 497–519, 2020
The Cryosphere, 14, 497–519, 2020

Research article 07 Feb 2020

Research article | 07 Feb 2020

Pan-Antarctic map of near-surface permafrost temperatures at 1 km2 scale

Jaroslav Obu et al.

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Revised manuscript under review for ESSD
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Cited articles

Ambrozova, K., Laska, K., Hrbacek, F., Kavan, J., and Ondruch, J.: Air temperature and lapse rate variation in the ice-free and glaciated areas of northern James Ross Island, Antarctic Peninsula, during 2013–2016, Int. J. Climatol., 39, 643–657,, 2019. 
Beer, C.: Permafrost Sub-grid Heterogeneity of Soil Properties Key for 3-D Soil Processes and Future Climate Projections, Front. Earth Sci., 4, 1–7,, 2016. 
Bintanja, R. and Reijmer, C. H.: A simple parameterization for snowdrift sublimation over Antarctic snow surfaces, J. Geophys. Res.-Atmos., 106, 31739–31748,, 2001. 
Bockheim, J. G., Campbell, I. B., and McLeod, M.: Permafrost distribution and active-layer depths in the McMurdo Dry Valleys, Antarctica, Permafrost Periglac., 18, 217–227,, 2007. 
Bockheim, J. G., Campbell, I. B., Guglielmin, M., and López-Martınez, J.: Distribution of permafrost types and buried ice in icefree areas of Antarctica, in: 9th International Conference on Permafrost, 28 June–3 July 2008, Proceedings, University of Alaska Press, Fairbanks, USA, 125–130, 2008. 
Short summary
Little is known about permafrost in the Antarctic outside of the few research stations. We used a simple equilibrium permafrost model to estimate permafrost temperatures in the whole Antarctic. The lowest permafrost temperature on Earth is −36 °C in the Queen Elizabeth Range in the Transantarctic Mountains. Temperatures are commonly between −23 and −18 °C in mountainous areas rising above the Antarctic Ice Sheet, between −14 and −8 °C in coastal areas, and up to 0 °C on the Antarctic Peninsula.