Technical Note: Quantification of interferences of wet chemical HONO LOPAP measurements under simulated polar conditions
In the present pilot study, an optimized LOPAP instrument (LOng Path Absorption Photometer) for the detection of nitrous acid (HONO) in the atmosphere (DL 0.2 pptV) was tested at the high alpine research station Jungfraujoch at 3580 m altitude in the Swiss Alps under conditions comparable to polar r...
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00047995 2023-05-15T18:22:24+02:00 Technical Note: Quantification of interferences of wet chemical HONO LOPAP measurements under simulated polar conditions Kleffmann, J. Wiesen, P. 2008-11 electronic https://doi.org/10.5194/acp-8-6813-2008 https://noa.gwlb.de/receive/cop_mods_00047995 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00047615/acp-8-6813-2008.pdf https://acp.copernicus.org/articles/8/6813/2008/acp-8-6813-2008.pdf eng eng Copernicus Publications Atmospheric Chemistry and Physics -- http://www.atmos-chem-phys.net/volumes_and_issues.html -- http://www.bibliothek.uni-regensburg.de/ezeit/?2069847 -- 1680-7324 https://doi.org/10.5194/acp-8-6813-2008 https://noa.gwlb.de/receive/cop_mods_00047995 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00047615/acp-8-6813-2008.pdf https://acp.copernicus.org/articles/8/6813/2008/acp-8-6813-2008.pdf uneingeschränkt info:eu-repo/semantics/openAccess article Verlagsveröffentlichung article Text doc-type:article 2008 ftnonlinearchiv https://doi.org/10.5194/acp-8-6813-2008 2022-02-08T22:38:12Z In the present pilot study, an optimized LOPAP instrument (LOng Path Absorption Photometer) for the detection of nitrous acid (HONO) in the atmosphere (DL 0.2 pptV) was tested at the high alpine research station Jungfraujoch at 3580 m altitude in the Swiss Alps under conditions comparable to polar regions. HONO concentrations in the range <0.5–50 pptV with an average of 7.5 pptV were observed at the Jungfraujoch. The diurnal profiles obtained exhibited clear maxima at noon and minima with very low concentration during the night supporting the proposed photochemical production of HONO. In good agreement with recent measurements at the South Pole, it was demonstrated, that interferences of chemical HONO instruments can significantly influence the measurements and lead to considerable overestimations, especially for low pollution level. Accordingly, the active correction of interferences is of paramount importance for the determination of reliable HONO data. Article in Journal/Newspaper South pole Niedersächsisches Online-Archiv NOA South Pole Atmospheric Chemistry and Physics 8 22 6813 6822 |
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English |
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article Verlagsveröffentlichung |
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article Verlagsveröffentlichung Kleffmann, J. Wiesen, P. Technical Note: Quantification of interferences of wet chemical HONO LOPAP measurements under simulated polar conditions |
topic_facet |
article Verlagsveröffentlichung |
description |
In the present pilot study, an optimized LOPAP instrument (LOng Path Absorption Photometer) for the detection of nitrous acid (HONO) in the atmosphere (DL 0.2 pptV) was tested at the high alpine research station Jungfraujoch at 3580 m altitude in the Swiss Alps under conditions comparable to polar regions. HONO concentrations in the range <0.5–50 pptV with an average of 7.5 pptV were observed at the Jungfraujoch. The diurnal profiles obtained exhibited clear maxima at noon and minima with very low concentration during the night supporting the proposed photochemical production of HONO. In good agreement with recent measurements at the South Pole, it was demonstrated, that interferences of chemical HONO instruments can significantly influence the measurements and lead to considerable overestimations, especially for low pollution level. Accordingly, the active correction of interferences is of paramount importance for the determination of reliable HONO data. |
format |
Article in Journal/Newspaper |
author |
Kleffmann, J. Wiesen, P. |
author_facet |
Kleffmann, J. Wiesen, P. |
author_sort |
Kleffmann, J. |
title |
Technical Note: Quantification of interferences of wet chemical HONO LOPAP measurements under simulated polar conditions |
title_short |
Technical Note: Quantification of interferences of wet chemical HONO LOPAP measurements under simulated polar conditions |
title_full |
Technical Note: Quantification of interferences of wet chemical HONO LOPAP measurements under simulated polar conditions |
title_fullStr |
Technical Note: Quantification of interferences of wet chemical HONO LOPAP measurements under simulated polar conditions |
title_full_unstemmed |
Technical Note: Quantification of interferences of wet chemical HONO LOPAP measurements under simulated polar conditions |
title_sort |
technical note: quantification of interferences of wet chemical hono lopap measurements under simulated polar conditions |
publisher |
Copernicus Publications |
publishDate |
2008 |
url |
https://doi.org/10.5194/acp-8-6813-2008 https://noa.gwlb.de/receive/cop_mods_00047995 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00047615/acp-8-6813-2008.pdf https://acp.copernicus.org/articles/8/6813/2008/acp-8-6813-2008.pdf |
geographic |
South Pole |
geographic_facet |
South Pole |
genre |
South pole |
genre_facet |
South pole |
op_relation |
Atmospheric Chemistry and Physics -- http://www.atmos-chem-phys.net/volumes_and_issues.html -- http://www.bibliothek.uni-regensburg.de/ezeit/?2069847 -- 1680-7324 https://doi.org/10.5194/acp-8-6813-2008 https://noa.gwlb.de/receive/cop_mods_00047995 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00047615/acp-8-6813-2008.pdf https://acp.copernicus.org/articles/8/6813/2008/acp-8-6813-2008.pdf |
op_rights |
uneingeschränkt info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/acp-8-6813-2008 |
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Atmospheric Chemistry and Physics |
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8 |
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22 |
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6813 |
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6822 |
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