Seasonality of reactive nitrogen oxides (NOy) at Neumayer Station, Antarctica
NO, NOy (total reactive nitrogen oxides), gaseous HNO3, and particulate nitrate (p-NO3−) were measured at Neumayer Station from February 1999 to January 2000. In addition, during February 1999, the NOy component species peroxyacetyl nitrate (PAN) and methyl, ethyl, i-propyl, and n-propyl nitrates we...
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2002
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ftnerc:oai:nora.nerc.ac.uk:17517 2023-05-15T13:45:12+02:00 Seasonality of reactive nitrogen oxides (NOy) at Neumayer Station, Antarctica Weller, R. Jones, A.E. Wille, A. Jacobi, H.-W. McIntyre, H.P. Sturges, W.T. Huke, M. Wagenbach, D. 2002 http://nora.nerc.ac.uk/id/eprint/17517/ http://www.agu.org/pubs/crossref/2002/2002JD002495.shtml unknown American Geophysical Union Weller, R.; Jones, A.E. orcid:0000-0002-2040-4841 Wille, A.; Jacobi, H.-W.; McIntyre, H.P.; Sturges, W.T.; Huke, M.; Wagenbach, D. 2002 Seasonality of reactive nitrogen oxides (NOy) at Neumayer Station, Antarctica. Journal of Geophysical Research, 107 (D23), 4673. 11, pp. https://doi.org/10.1029/2002JD002495 <https://doi.org/10.1029/2002JD002495> Publication - Article PeerReviewed 2002 ftnerc https://doi.org/10.1029/2002JD002495 2023-02-04T19:31:09Z NO, NOy (total reactive nitrogen oxides), gaseous HNO3, and particulate nitrate (p-NO3−) were measured at Neumayer Station from February 1999 to January 2000. In addition, during February 1999, the NOy component species peroxyacetyl nitrate (PAN) and methyl, ethyl, i-propyl, and n-propyl nitrates were determined. We found a mean NOy mixing ratio of 46 ± 29 pptv, with significantly higher values between February and end of May (58 ± 35 pptv). Between February and November, the (HNO3 + p-NO3−)/NOy ratio was extremely low (around 0.22) and in contrast to NOy the seasonality of p-NO3− and HNO3 showed a distinct maximum in November and December, leading to a (HNO3 + p-NO3−)/NOy ratio of 0.66. Trajectory analyses and radioisotope measurements (7Be, 10Be, 210Pb, and 222Rn) indicated that the upper troposphere or stratosphere was the main source region of the observed NOy with a negligible contribution of ground-level sources at northward continents. Frequent maxima of NOy mixing ratios up to 100 pptv are generally associated with air mass transport from the free troposphere of continental Antarctica, while air masses with the lowest NOy mixing ratios were typically advected from the marine boundary layer. Article in Journal/Newspaper Antarc* Antarctica Antarctica Journal Natural Environment Research Council: NERC Open Research Archive Neumayer Neumayer Station Journal of Geophysical Research: Atmospheres 107 D23 ACH 2-1 ACH 2-11 |
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Open Polar |
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Natural Environment Research Council: NERC Open Research Archive |
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ftnerc |
language |
unknown |
description |
NO, NOy (total reactive nitrogen oxides), gaseous HNO3, and particulate nitrate (p-NO3−) were measured at Neumayer Station from February 1999 to January 2000. In addition, during February 1999, the NOy component species peroxyacetyl nitrate (PAN) and methyl, ethyl, i-propyl, and n-propyl nitrates were determined. We found a mean NOy mixing ratio of 46 ± 29 pptv, with significantly higher values between February and end of May (58 ± 35 pptv). Between February and November, the (HNO3 + p-NO3−)/NOy ratio was extremely low (around 0.22) and in contrast to NOy the seasonality of p-NO3− and HNO3 showed a distinct maximum in November and December, leading to a (HNO3 + p-NO3−)/NOy ratio of 0.66. Trajectory analyses and radioisotope measurements (7Be, 10Be, 210Pb, and 222Rn) indicated that the upper troposphere or stratosphere was the main source region of the observed NOy with a negligible contribution of ground-level sources at northward continents. Frequent maxima of NOy mixing ratios up to 100 pptv are generally associated with air mass transport from the free troposphere of continental Antarctica, while air masses with the lowest NOy mixing ratios were typically advected from the marine boundary layer. |
format |
Article in Journal/Newspaper |
author |
Weller, R. Jones, A.E. Wille, A. Jacobi, H.-W. McIntyre, H.P. Sturges, W.T. Huke, M. Wagenbach, D. |
spellingShingle |
Weller, R. Jones, A.E. Wille, A. Jacobi, H.-W. McIntyre, H.P. Sturges, W.T. Huke, M. Wagenbach, D. Seasonality of reactive nitrogen oxides (NOy) at Neumayer Station, Antarctica |
author_facet |
Weller, R. Jones, A.E. Wille, A. Jacobi, H.-W. McIntyre, H.P. Sturges, W.T. Huke, M. Wagenbach, D. |
author_sort |
Weller, R. |
title |
Seasonality of reactive nitrogen oxides (NOy) at Neumayer Station, Antarctica |
title_short |
Seasonality of reactive nitrogen oxides (NOy) at Neumayer Station, Antarctica |
title_full |
Seasonality of reactive nitrogen oxides (NOy) at Neumayer Station, Antarctica |
title_fullStr |
Seasonality of reactive nitrogen oxides (NOy) at Neumayer Station, Antarctica |
title_full_unstemmed |
Seasonality of reactive nitrogen oxides (NOy) at Neumayer Station, Antarctica |
title_sort |
seasonality of reactive nitrogen oxides (noy) at neumayer station, antarctica |
publisher |
American Geophysical Union |
publishDate |
2002 |
url |
http://nora.nerc.ac.uk/id/eprint/17517/ http://www.agu.org/pubs/crossref/2002/2002JD002495.shtml |
geographic |
Neumayer Neumayer Station |
geographic_facet |
Neumayer Neumayer Station |
genre |
Antarc* Antarctica Antarctica Journal |
genre_facet |
Antarc* Antarctica Antarctica Journal |
op_relation |
Weller, R.; Jones, A.E. orcid:0000-0002-2040-4841 Wille, A.; Jacobi, H.-W.; McIntyre, H.P.; Sturges, W.T.; Huke, M.; Wagenbach, D. 2002 Seasonality of reactive nitrogen oxides (NOy) at Neumayer Station, Antarctica. Journal of Geophysical Research, 107 (D23), 4673. 11, pp. https://doi.org/10.1029/2002JD002495 <https://doi.org/10.1029/2002JD002495> |
op_doi |
https://doi.org/10.1029/2002JD002495 |
container_title |
Journal of Geophysical Research: Atmospheres |
container_volume |
107 |
container_issue |
D23 |
container_start_page |
ACH 2-1 |
op_container_end_page |
ACH 2-11 |
_version_ |
1766216351113805824 |