Articles | Volume 14, issue 12
The Cryosphere, 14, 4611–4626, 2020
https://doi.org/10.5194/tc-14-4611-2020
The Cryosphere, 14, 4611–4626, 2020
https://doi.org/10.5194/tc-14-4611-2020

Research article 18 Dec 2020

Research article | 18 Dec 2020

Projecting circum-Arctic excess-ground-ice melt with a sub-grid representation in the Community Land Model

Lei Cai et al.

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Cited articles

Aas, K. S., Martin, L., Nitzbon, J., Langer, M., Boike, J., Lee, H., Berntsen, T. K., and Westermann, S.: Thaw processes in ice-rich permafrost landscapes represented with laterally coupled tiles in a land surface model, The Cryosphere, 13, 591–609, https://doi.org/10.5194/tc-13-591-2019, 2019. 
Brown, J., Ferrians, O., Heginbottom, J., and Melnikov, E. S.: Circum-Arctic map of permafrost and ground-ice conditions, dataset, US Geological Survey Reston, VA, 1997. 
Burke, E. J., Dankers, R., Jones, C. D., and Wiltshire, A. J.: A retrospective analysis of pan Arctic permafrost using the JULES land surface model, Clim. Dynam., 41, 1025–1038, https://doi.org/10.1007/s00382-012-1648-x, 2013. 
Cable, S., Elberling, B., and Kroon, A.: Holocene permafrost history and cryostratigraphy in the High-Arctic Adventdalen Valley, central Svalbard, Boreas, 47, 423–442, https://doi.org/10.1111/bor.12286, 2018. 
Calmels, F. and Allard, M.: Segregated ice structures in various heaved permafrost landforms through CT Scan, Earth Surf. Proc. Land., 33, 209–225, https://doi.org/10.1002/esp.1538, 2008. 
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Short summary
A sub-grid representation of excess ground ice in the Community Land Model (CLM) is developed as novel progress in modeling permafrost thaw and its impacts under the warming climate. The modeled permafrost degradation with sub-grid excess ice follows the pathway that continuous permafrost transforms into discontinuous permafrost before it disappears, including surface subsidence and talik formation, which are highly permafrost-relevant landscape changes excluded from most land models.