Articles | Volume 14, issue 2
The Cryosphere, 14, 497–519, 2020
https://doi.org/10.5194/tc-14-497-2020
The Cryosphere, 14, 497–519, 2020
https://doi.org/10.5194/tc-14-497-2020

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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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, https://doi.org/10.1002/joc.5832, 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, https://doi.org/10.3389/feart.2016.00081, 2016. 
Bintanja, R. and Reijmer, C. H.: A simple parameterization for snowdrift sublimation over Antarctic snow surfaces, J. Geophys. Res.-Atmos., 106, 31739–31748, https://doi.org/10.1029/2000JD000107, 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, https://doi.org/10.1002/ppp.588, 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. 
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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.