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

Jones, A. E.; Brough, N.; Anderson, P. S.; Wolff, E. W.

doi:10.5194/acp-14-11843-2014

Articles | Volume 14, issue 21

https://doi.org/10.5194/acp-14-11843-2014

© Author(s) 2014. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/acp-14-11843-2014

© Author(s) 2014. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 14, issue 21

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, N. Brough, P. S. Anderson, and E. W. Wolff

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Cumulative views and downloads (calculated since 20 May 2014)

Month	HTML	PDF	XML	Total
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Jun 2014	13	26	4	43
Jul 2014	7	16	3	26
Aug 2014	11	13	3	27
Sep 2014	15	15	2	32
Oct 2014	5	7	0	12
Nov 2014	148	150	3	301
Dec 2014	71	43	0	114
Jan 2015	27	30	1	58
Feb 2015	13	10	0	23
Mar 2015	18	14	1	33
Apr 2015	18	7	2	27
May 2015	10	7	0	17
Jun 2015	36	4	3	43
Jul 2015	27	8	2	37
Aug 2015	7	8	2	17
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Oct 2015	19	6	1	26
Nov 2015	31	14	4	49
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Latest update: 28 Nov 2025

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.