Articles | Volume 14, issue 2
The Cryosphere, 14, 429–444, 2020
https://doi.org/10.5194/tc-14-429-2020
The Cryosphere, 14, 429–444, 2020
https://doi.org/10.5194/tc-14-429-2020

Research article 04 Feb 2020

Research article | 04 Feb 2020

Influence of sea-ice anomalies on Antarctic precipitation using source attribution in the Community Earth System Model

Hailong Wang et al.

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Cited articles

Agosta, C., Fettweis, X., and Datta, R.: Evaluation of the CMIP5 models in the aim of regional modelling of the Antarctic surface mass balance, The Cryosphere, 9, 2311–2321, https://doi.org/10.5194/tc-9-2311-2015, 2015. 
Bader, J., Flügge, M., Kvamstø, N. G., Mesquita, M. D. S., and Voigt, A.: Atmospheric winter response to a projected future Antarctic sea-ice reduction: A dynamical analysis, Clim. Dynam., 40, 2707–2718, https://doi.org/10.1007/s00382-012-1507-9, 2013. 
Bailey, A. R., Singh, H. A., Nusbaumer, J.: Evaluating a Moist Isentropic Framework for Poleward Moisture Transport: Implications for Water Isotopes over Antarctica, Geophys. Res. Lett., 46, 7819–7827, https://doi.org/10.1029/2019GL082965, 2019. 
Behrangi, A., Christensen, M., Richardson, M., Lebsock, M., Stephens, G., Huffman, G. J., Bolvin, D., Adler, R. F., Gardner, A., Lambrigtsen, B., and Fetzer, E.: Status of high-latitude precipitation estimates from observations and reanalyses, J. Geophys. Res.-Atmos., 121, 4468–4486, https://doi.org/10.1002/2015JD024546, 2016. 
Bracegirdle, T. J., Stephenson, D. B., Turner, J., and Phillips, T.: The importance of sea ice area biases in 21st century multimodel projections of Antarctic temperature and precipitation, Geophys. Res. Lett. 42, 10832–10839, 2015. 
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Short summary
Using a climate model with unique water source tagging, we found that sea-ice anomalies in the Southern Ocean and accompanying SST changes have a significant influence on Antarctic precipitation and its source attribution through their direct impact on moisture sources and indirect impact on moisture transport. This study also highlights the importance of atmospheric dynamics in affecting the thermodynamic impact of sea-ice anomalies on regional Antarctic precipitation.