Articles | Volume 14, issue 21
Atmos. Chem. Phys., 14, 11843–11851, 2014
https://doi.org/10.5194/acp-14-11843-2014
Atmos. Chem. Phys., 14, 11843–11851, 2014
https://doi.org/10.5194/acp-14-11843-2014

Research article 12 Nov 2014

Research article | 12 Nov 2014

HO2NO2 and HNO3 in the coastal Antarctic winter night: a "lab-in-the-field" experiment

A. E. Jones et al.

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Short summary
We report observations of nitric acid and peroxynitric acid, in coastal Antarctica during winter. During winter, it is dark 24h per day, so there is no influence of sunlight on atmospheric composition. We show that observed variability in concentrations is highly correlated with changes in temperature. We derive enthalpies of adsorption and show they are consistent with those derived in laboratory studies. The Antarctic, during winter, is an ideal natural laboratory to study air-snow exchange.
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