Nitrogen oxides in the firn air at Summit, Greenland
Measurements of NOx within the snowpack at Summit, Greenland were carried out from June 2008 to July 2010, using a novel system to sample firn air with minimal disruption of the snowpack. These long-term measurements were motivated by the need of improving the representation of air-snow interactions...
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ftmichigantuniv:oai:digitalcommons.mtu.edu:etds-1275 2024-09-15T18:09:08+00:00 Nitrogen oxides in the firn air at Summit, Greenland Toro, Claudia 2011-01-01T08:00:00Z application/pdf https://digitalcommons.mtu.edu/etds/276 https://doi.org/10.37099/mtu.dc.etds/276 https://digitalcommons.mtu.edu/context/etds/article/1275/viewcontent/thesis.pdf unknown Digital Commons @ Michigan Tech https://digitalcommons.mtu.edu/etds/276 doi:10.37099/mtu.dc.etds/276 https://digitalcommons.mtu.edu/context/etds/article/1275/viewcontent/thesis.pdf Dissertations, Master's Theses and Master's Reports - Open Civil and Environmental Engineering Engineering text 2011 ftmichigantuniv https://doi.org/10.37099/mtu.dc.etds/276 2024-08-06T03:32:38Z Measurements of NOx within the snowpack at Summit, Greenland were carried out from June 2008 to July 2010, using a novel system to sample firn air with minimal disruption of the snowpack. These long-term measurements were motivated by the need of improving the representation of air-snow interactions in global models. Results indicated that the NOx budget within the snowpack was on the order of 550 pptv as maximum, and was constituted primarily for NO2. NOx production was observed within the first 50 cm of the snowpack during the sunlight season between February and August. Presence of NOx at larger depths was attributed to high speed wind and vertical transport processes. Production of NO correlated with the seasonal incoming radiation profile, while NO2 maximum was observed in April. These measurements constitute the larger data set of NOx within the firn and will improve the representation of processes driving snow photochemistry at Summit. Text Greenland Michigan Technological University: Digital Commons @ Michigan Tech |
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Michigan Technological University: Digital Commons @ Michigan Tech |
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unknown |
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Civil and Environmental Engineering Engineering |
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Civil and Environmental Engineering Engineering Toro, Claudia Nitrogen oxides in the firn air at Summit, Greenland |
topic_facet |
Civil and Environmental Engineering Engineering |
description |
Measurements of NOx within the snowpack at Summit, Greenland were carried out from June 2008 to July 2010, using a novel system to sample firn air with minimal disruption of the snowpack. These long-term measurements were motivated by the need of improving the representation of air-snow interactions in global models. Results indicated that the NOx budget within the snowpack was on the order of 550 pptv as maximum, and was constituted primarily for NO2. NOx production was observed within the first 50 cm of the snowpack during the sunlight season between February and August. Presence of NOx at larger depths was attributed to high speed wind and vertical transport processes. Production of NO correlated with the seasonal incoming radiation profile, while NO2 maximum was observed in April. These measurements constitute the larger data set of NOx within the firn and will improve the representation of processes driving snow photochemistry at Summit. |
format |
Text |
author |
Toro, Claudia |
author_facet |
Toro, Claudia |
author_sort |
Toro, Claudia |
title |
Nitrogen oxides in the firn air at Summit, Greenland |
title_short |
Nitrogen oxides in the firn air at Summit, Greenland |
title_full |
Nitrogen oxides in the firn air at Summit, Greenland |
title_fullStr |
Nitrogen oxides in the firn air at Summit, Greenland |
title_full_unstemmed |
Nitrogen oxides in the firn air at Summit, Greenland |
title_sort |
nitrogen oxides in the firn air at summit, greenland |
publisher |
Digital Commons @ Michigan Tech |
publishDate |
2011 |
url |
https://digitalcommons.mtu.edu/etds/276 https://doi.org/10.37099/mtu.dc.etds/276 https://digitalcommons.mtu.edu/context/etds/article/1275/viewcontent/thesis.pdf |
genre |
Greenland |
genre_facet |
Greenland |
op_source |
Dissertations, Master's Theses and Master's Reports - Open |
op_relation |
https://digitalcommons.mtu.edu/etds/276 doi:10.37099/mtu.dc.etds/276 https://digitalcommons.mtu.edu/context/etds/article/1275/viewcontent/thesis.pdf |
op_doi |
https://doi.org/10.37099/mtu.dc.etds/276 |
_version_ |
1810446554619707392 |