Antarctic sea ice region as a source of biogenic organic nitrogen in aerosols

Dall’Osto, Manuel
Ovadnevaite, Jurgita
Paglione, Marco
Beddows, David C. S.
Ceburnis, Darius
Cree, Charlotte
Cortés, Pau
Zamanillo, Marina
Nunes, Sdena O.
Pérez, Gonzalo L.
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Dall’Osto, Manuel; Ovadnevaite, Jurgita; Paglione, Marco; Beddows, David C. S. Ceburnis, Darius; Cree, Charlotte; Cortés, Pau; Zamanillo, Marina; Nunes, Sdena O.; Pérez, Gonzalo L.; Ortega-Retuerta, Eva; Emelianov, Mikhail; Vaqué, Dolors; Marrasé, Cèlia; Estrada, Marta; Sala, M. Montserrat; Vidal, Montserrat; Fitzsimons, Mark F.; Beale, Rachael; Airs, Ruth; Rinaldi, Matteo; Decesari, Stefano; Cristina Facchini, Maria; Harrison, Roy M.; O’Dowd, Colin; Simó, Rafel (2017). Antarctic sea ice region as a source of biogenic organic nitrogen in aerosols. Scientific Reports 7 ,
Climate warming affects the development and distribution of sea ice, but at present the evidence of polar ecosystem feedbacks on climate through changes in the atmosphere is sparse. By means of synergistic atmospheric and oceanic measurements in the Southern Ocean near Antarctica, we present evidence that the microbiota of sea ice and sea ice-influenced ocean are a previously unknown significant source of atmospheric organic nitrogen, including low molecular weight alkyl-amines. Given the keystone role of nitrogen compounds in aerosol formation, growth and neutralization, our findings call for greater chemical and source diversity in the modelling efforts linking the marine ecosystem to aerosol-mediated climate effects in the Southern Ocean.
Springer Nature
Publisher DOI
Attribution-NonCommercial-NoDerivs 3.0 Ireland