Articles | Volume 10, issue 2
Research article
15 Apr 2016
Research article |  | 15 Apr 2016

Potential genesis and implications of calcium nitrate in Antarctic snow

Kanthanathan Mahalinganathan and Meloth Thamban

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Manuscript not accepted for further review
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Cited articles

Al-Abadleh, H. A., Krueger, B. J., Ross, J. L., and Grassian, V. H.: Phase transitions in calcium nitrate thin films, Chem. Commun., 22, 2796–2797,, 2003.
Albani, S., Mahowald, N. M., Delmonte, B., Maggi, V., and Winckler, G.: Comparing modeled and observed changes in mineral dust transport and deposition to Antarctica between the Last Glacial Maximum and current climates, Clim. Dynam., 38, 1731–1755,, 2012.
Antony, R., Thamban, M., Krishnan, K. P., and Mahalinganathan, K.: Is cloud seeding in coastal Antarctica linked to bromine and nitrate variability in snow?, Environ. Res. Lett., 5, 014009,, 2010.
Basile-Doelsch, I., Grousset, F. E., Revel, M., Petit, J. R., Biscaye, P. E., and Barkov, N. I.: Patagonian origin of glacial dust deposited in East Antarctica (Vostok and Dome C) during glacial stages 2, 4 and 6, Earth Planet. Sc. Lett., 146, 573–589,, 1997.
Berhanu, T. A., Savarino, J., Erbland, J., Vicars, W. C., Preunkert, S., Martins, J. F., and Johnson, M. S.: Isotopic effects of nitrate photochemistry in snow: a field study at Dome C, Antarctica, Atmos. Chem. Phys., 15, 11243–11256,, 2015.
Short summary
Our results show a strong association between calcium and nitrate ions in snow from two different regions that are > 2000 km apart in East Antarctica. Such association could have formed during the interaction between long-range transported dust with the atmospheric nitrate. This study also implies that apart from other well-known sources of nitrate in Antarctica, nitrate associated with mineral dust could form a significant portion of total nitrate deposited in Antarctic snow.