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

Abstract 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 presen...

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Bibliographic Details
Published in:Scientific Reports
Main Authors: Manuel Dall’Osto, Jurgita Ovadnevaite, Marco Paglione, David C. S. Beddows, Darius Ceburnis, Charlotte Cree, Pau Cortés, Marina Zamanillo, Sdena O. Nunes, Gonzalo L. Pérez, Eva Ortega-Retuerta, Mikhail Emelianov, Dolors Vaqué, Cèlia Marrasé, Marta Estrada, M. Montserrat Sala, Montserrat Vidal, Mark F. Fitzsimons, Rachael Beale, Ruth Airs, Matteo Rinaldi, Stefano Decesari, Maria Cristina Facchini, Roy M. Harrison, Colin O’Dowd, Rafel Simó
Format: Article in Journal/Newspaper
Language:English
Published: Nature Portfolio 2017
Subjects:
Medicine
R
Science
Q
Antarctic
Southern Ocean
Antarc*
Antarctica
Sea ice
Online Access:https://doi.org/10.1038/s41598-017-06188-x
https://doaj.org/article/7ec011a8d4dd48648669d6559a17a917
Description
Summary:Abstract 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.

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