Speciation and rate of photochemical NO and NO2 production in Antarctic snow
In controlled experiments carried out at Neumayer, Antarctica, throughout a diurnal cycle,concentrations of NOx (NO + NO2) were measured in air pulled through a snowblock cutfrom the Antarctic surface snow. It was found that the concentrations are higher than thosein ambient air. The production rate...
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ftawi:oai:epic.awi.de:1566 2023-09-05T13:12:18+02:00 Speciation and rate of photochemical NO and NO2 production in Antarctic snow Jones, A. E. Weller, Rolf Wolff, E. W. Jacobi, Hans-Werner 2000 application/pdf https://epic.awi.de/id/eprint/1566/ https://epic.awi.de/id/eprint/1566/1/Jon9999a.pdf https://hdl.handle.net/10013/epic.12159 https://hdl.handle.net/10013/epic.12159.d001 unknown https://epic.awi.de/id/eprint/1566/1/Jon9999a.pdf https://hdl.handle.net/10013/epic.12159.d001 Jones, A. E. , Weller, R. orcid:0000-0003-4880-5572 , Wolff, E. W. and Jacobi, H. W. (2000) Speciation and rate of photochemical NO and NO2 production in Antarctic snow , Geophysical Research Letters, 27 (3), pp. 345-348 . hdl:10013/epic.12159 EPIC3Geophysical Research Letters, 27(3), pp. 345-348, ISSN: 0094-8276 Article isiRev 2000 ftawi 2023-08-22T19:42:44Z In controlled experiments carried out at Neumayer, Antarctica, throughout a diurnal cycle,concentrations of NOx (NO + NO2) were measured in air pulled through a snowblock cutfrom the Antarctic surface snow. It was found that the concentrations are higher than thosein ambient air. The production rates of NOx in the snowblock air vary with the intensity ofradiation incident on the block, consistent with photolytic mechanisms. By alternatelyshading and exposing the snowblock to sunlight, it was confirmed that photochemistrydrives the NOx production rates in the snowblock air, with, presumably, nitrate in the snowserving as the reservoir species for the production. These results provide evidence thatphotochemical activity in Antarctic surface snow can significantly increase concentrations ofNO and NO2. Article in Journal/Newspaper Antarc* Antarctic Antarctica Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Antarctic Neumayer The Antarctic |
institution |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
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ftawi |
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unknown |
description |
In controlled experiments carried out at Neumayer, Antarctica, throughout a diurnal cycle,concentrations of NOx (NO + NO2) were measured in air pulled through a snowblock cutfrom the Antarctic surface snow. It was found that the concentrations are higher than thosein ambient air. The production rates of NOx in the snowblock air vary with the intensity ofradiation incident on the block, consistent with photolytic mechanisms. By alternatelyshading and exposing the snowblock to sunlight, it was confirmed that photochemistrydrives the NOx production rates in the snowblock air, with, presumably, nitrate in the snowserving as the reservoir species for the production. These results provide evidence thatphotochemical activity in Antarctic surface snow can significantly increase concentrations ofNO and NO2. |
format |
Article in Journal/Newspaper |
author |
Jones, A. E. Weller, Rolf Wolff, E. W. Jacobi, Hans-Werner |
spellingShingle |
Jones, A. E. Weller, Rolf Wolff, E. W. Jacobi, Hans-Werner Speciation and rate of photochemical NO and NO2 production in Antarctic snow |
author_facet |
Jones, A. E. Weller, Rolf Wolff, E. W. Jacobi, Hans-Werner |
author_sort |
Jones, A. E. |
title |
Speciation and rate of photochemical NO and NO2 production in Antarctic snow |
title_short |
Speciation and rate of photochemical NO and NO2 production in Antarctic snow |
title_full |
Speciation and rate of photochemical NO and NO2 production in Antarctic snow |
title_fullStr |
Speciation and rate of photochemical NO and NO2 production in Antarctic snow |
title_full_unstemmed |
Speciation and rate of photochemical NO and NO2 production in Antarctic snow |
title_sort |
speciation and rate of photochemical no and no2 production in antarctic snow |
publishDate |
2000 |
url |
https://epic.awi.de/id/eprint/1566/ https://epic.awi.de/id/eprint/1566/1/Jon9999a.pdf https://hdl.handle.net/10013/epic.12159 https://hdl.handle.net/10013/epic.12159.d001 |
geographic |
Antarctic Neumayer The Antarctic |
geographic_facet |
Antarctic Neumayer The Antarctic |
genre |
Antarc* Antarctic Antarctica |
genre_facet |
Antarc* Antarctic Antarctica |
op_source |
EPIC3Geophysical Research Letters, 27(3), pp. 345-348, ISSN: 0094-8276 |
op_relation |
https://epic.awi.de/id/eprint/1566/1/Jon9999a.pdf https://hdl.handle.net/10013/epic.12159.d001 Jones, A. E. , Weller, R. orcid:0000-0003-4880-5572 , Wolff, E. W. and Jacobi, H. W. (2000) Speciation and rate of photochemical NO and NO2 production in Antarctic snow , Geophysical Research Letters, 27 (3), pp. 345-348 . hdl:10013/epic.12159 |
_version_ |
1776199751069335552 |