Articles | Volume 20, issue 5
https://doi.org/10.5194/cp-20-1213-2024
https://doi.org/10.5194/cp-20-1213-2024
Research article
 | 
28 May 2024
Research article |  | 28 May 2024

Drivers of late Holocene ice core chemistry in Dronning Maud Land: the context for the ISOL-ICE project

V. Holly L. Winton, Robert Mulvaney, Joel Savarino, Kyle R. Clem, and Markus M. Frey

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Manuscript not accepted for further review
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Cited articles

Abram, N. J., Mulvaney, R., Wolff, E. W., and Mudelsee, M.: Ice core records as sea ice proxies: An evaluation from the Weddell Sea region of Antarctica, J. Geophys. Res., 112, D15101, https://doi.org/10.1029/2006jd008139, 2007. 
Abram, N. J., Thomas, E. R., McConnell, J. R., Mulvaney, R., Bracegirdle, T. J., Sime, L. C., and Aristarain, A. J.: Ice core evidence for a 20th century decline of sea ice in the Bellingshausen Sea, Antarctica, J. Geophys. Res.-Atmos., 115, D23101, https://doi.org/10.1029/2010JD014644, 2010. 
Abram, N. J., Mulvaney, R., and Arrowsmith, C.: Environmental signals in a highly resolved ice core from James Ross Island, Antarctica, J. Geophys. Res.-Atmos., 116, D20116, https://doi.org/10.1029/2011JD016147, 2011. 
Abram, N. J., Wolff, E. W., and Curran, M. A.: A review of sea ice proxy information from polar ice cores, Quaternary Sci. Rev., 79, 168–183, 2013. 
Akers, P. D., Savarino, J., Caillon, N., Servettaz, A. P., Le Meur, E., Magand, O., Martins, J., Agosta, C., Crockford, P., and Kobayashi, K.: Sunlight-driven nitrate loss records Antarctic surface mass balance, Nat. Commun., 13, 4274, https://doi.org/10.1038/s41467-022-31855-7, 2022. 
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In 2018, a new 120 m ice core was drilled in a region located under the Antarctic ozone hole. We present the first results including a 1300-year record of snow accumulation and aerosol chemistry. We investigate the aerosol and moisture source regions and atmospheric processes related to the ice core record and discuss what this means for developing a record of past ultraviolet radiation and ozone depletion using the stable isotopic composition of nitrate measured in the same ice core.