Measurements of NOx emissions from the Antarctic snowpack
It has been shown that NOx is produced photochemically within the snowpack of polar regions. If emitted to the atmosphere, this process could be a major source of NOx in remote snowcovered regions. We report here on measurements made at the German Antarctic station, Neumayer, during austral summer 1...
Published in: | Geophysical Research Letters |
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American Geophysical Union
2001
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ftnerc:oai:nora.nerc.ac.uk:10150 2023-05-15T13:45:10+02:00 Measurements of NOx emissions from the Antarctic snowpack Jones, A.E. Weller, R. Anderson, P.S. Jacobi, H.-W. Wolff, E.W. Schrems, O. Miller, H. 2001-04 http://nora.nerc.ac.uk/id/eprint/10150/ https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/2000GL011956 unknown American Geophysical Union Jones, A.E. orcid:0000-0002-2040-4841 Weller, R.; Anderson, P.S.; Jacobi, H.-W.; Wolff, E.W.; Schrems, O.; Miller, H. 2001 Measurements of NOx emissions from the Antarctic snowpack. Geophysical Research Letters, 28 (8). 1499-1502. https://doi.org/10.1029/2000GL011956 <https://doi.org/10.1029/2000GL011956> Meteorology and Climatology Earth Sciences Atmospheric Sciences Publication - Article PeerReviewed 2001 ftnerc https://doi.org/10.1029/2000GL011956 2023-02-04T19:26:32Z It has been shown that NOx is produced photochemically within the snowpack of polar regions. If emitted to the atmosphere, this process could be a major source of NOx in remote snowcovered regions. We report here on measurements made at the German Antarctic station, Neumayer, during austral summer 1999, aimed at detecting and quantifying emissions of NOx from the surface snow. Gradients of NOx were measured, and fluxes calculated using local meteorology measurements. On the 2 days of flux measurements, the derived fluxes showed continual release from the snow surface, varying between similar to0 and 3x10(8) molecs/cm(2)/s. When not subject to turbulence, the variation was coincident with the uv diurnal cycle, suggesting rapid release once photochemically produced. Scaling the diurnal average of Feb. 7th (1.3x10(8) molecs/cm(2)/s) suggests an annual emission over Antarctica of the order 0.0076TgN. Article in Journal/Newspaper Antarc* Antarctic Antarctica Natural Environment Research Council: NERC Open Research Archive Antarctic The Antarctic Austral Neumayer Geophysical Research Letters 28 8 1499 1502 |
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Open Polar |
collection |
Natural Environment Research Council: NERC Open Research Archive |
op_collection_id |
ftnerc |
language |
unknown |
topic |
Meteorology and Climatology Earth Sciences Atmospheric Sciences |
spellingShingle |
Meteorology and Climatology Earth Sciences Atmospheric Sciences Jones, A.E. Weller, R. Anderson, P.S. Jacobi, H.-W. Wolff, E.W. Schrems, O. Miller, H. Measurements of NOx emissions from the Antarctic snowpack |
topic_facet |
Meteorology and Climatology Earth Sciences Atmospheric Sciences |
description |
It has been shown that NOx is produced photochemically within the snowpack of polar regions. If emitted to the atmosphere, this process could be a major source of NOx in remote snowcovered regions. We report here on measurements made at the German Antarctic station, Neumayer, during austral summer 1999, aimed at detecting and quantifying emissions of NOx from the surface snow. Gradients of NOx were measured, and fluxes calculated using local meteorology measurements. On the 2 days of flux measurements, the derived fluxes showed continual release from the snow surface, varying between similar to0 and 3x10(8) molecs/cm(2)/s. When not subject to turbulence, the variation was coincident with the uv diurnal cycle, suggesting rapid release once photochemically produced. Scaling the diurnal average of Feb. 7th (1.3x10(8) molecs/cm(2)/s) suggests an annual emission over Antarctica of the order 0.0076TgN. |
format |
Article in Journal/Newspaper |
author |
Jones, A.E. Weller, R. Anderson, P.S. Jacobi, H.-W. Wolff, E.W. Schrems, O. Miller, H. |
author_facet |
Jones, A.E. Weller, R. Anderson, P.S. Jacobi, H.-W. Wolff, E.W. Schrems, O. Miller, H. |
author_sort |
Jones, A.E. |
title |
Measurements of NOx emissions from the Antarctic snowpack |
title_short |
Measurements of NOx emissions from the Antarctic snowpack |
title_full |
Measurements of NOx emissions from the Antarctic snowpack |
title_fullStr |
Measurements of NOx emissions from the Antarctic snowpack |
title_full_unstemmed |
Measurements of NOx emissions from the Antarctic snowpack |
title_sort |
measurements of nox emissions from the antarctic snowpack |
publisher |
American Geophysical Union |
publishDate |
2001 |
url |
http://nora.nerc.ac.uk/id/eprint/10150/ https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/2000GL011956 |
geographic |
Antarctic The Antarctic Austral Neumayer |
geographic_facet |
Antarctic The Antarctic Austral Neumayer |
genre |
Antarc* Antarctic Antarctica |
genre_facet |
Antarc* Antarctic Antarctica |
op_relation |
Jones, A.E. orcid:0000-0002-2040-4841 Weller, R.; Anderson, P.S.; Jacobi, H.-W.; Wolff, E.W.; Schrems, O.; Miller, H. 2001 Measurements of NOx emissions from the Antarctic snowpack. Geophysical Research Letters, 28 (8). 1499-1502. https://doi.org/10.1029/2000GL011956 <https://doi.org/10.1029/2000GL011956> |
op_doi |
https://doi.org/10.1029/2000GL011956 |
container_title |
Geophysical Research Letters |
container_volume |
28 |
container_issue |
8 |
container_start_page |
1499 |
op_container_end_page |
1502 |
_version_ |
1766214002821562368 |