Surprisingly small HONO emissions from snow surfaces at Browning Pass, Antarctica
International audience Measured Fluxes of nitrous acid at Browning Pass, Antarctica were very low, despite conditions that are generally understood as favorable for HONO emissions, including: acidic snow surfaces, an abundance of NO 3 - anions in the snow surface, and abundant UV light for NO 3 - ph...
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ftunivnantes:oai:HAL:hal-00328448v1 2023-05-15T13:48:53+02:00 Surprisingly small HONO emissions from snow surfaces at Browning Pass, Antarctica Beine, H. J. Amoroso, A. Dominé, F. King, M. D. Nardino, M. Ianniello, A. France, J. L. C.N.R. IIA Laboratoire de glaciologie et géophysique de l'environnement (LGGE) Observatoire des Sciences de l'Univers de Grenoble (OSUG) Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) Department of Geology Royal Holloway University of London (RHUL) Istituto di Biometeorologia Bologna (IBIMET) Consiglio Nazionale delle Ricerche (CNR) 2006-07-03 https://hal.science/hal-00328448 https://hal.science/hal-00328448/document https://hal.science/hal-00328448/file/acp-6-2569-2006.pdf en eng HAL CCSD European Geosciences Union hal-00328448 https://hal.science/hal-00328448 https://hal.science/hal-00328448/document https://hal.science/hal-00328448/file/acp-6-2569-2006.pdf info:eu-repo/semantics/OpenAccess ISSN: 1680-7316 EISSN: 1680-7324 Atmospheric Chemistry and Physics https://hal.science/hal-00328448 Atmospheric Chemistry and Physics, 2006, 6 (9), pp.2580 [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere info:eu-repo/semantics/article Journal articles 2006 ftunivnantes 2023-03-01T02:23:17Z International audience Measured Fluxes of nitrous acid at Browning Pass, Antarctica were very low, despite conditions that are generally understood as favorable for HONO emissions, including: acidic snow surfaces, an abundance of NO 3 - anions in the snow surface, and abundant UV light for NO 3 - photolysis. Photochemical modeling suggests noon time HONO fluxes of 5–10 nmol m -2 h -1 the measured fluxes, however, were close to zero throughout the campaign. The location and state of NO 3 - in snow is crucial to its reactivity. The analysis of soluble mineral ions in snow reveals that the NO 3 - ion is probably present in aged snows as NaNO 3 . This is peculiar to our study site, and we suggest that this may affect the photochemical reactivity of NO 3 - , by preventing the release of products, or providing a reactive medium for newly formed HONO. In fresh snow, the NO 3 - ion is probably present as dissolved or adsorbed HNO 3 and yet, no HONO emissions were observed. We speculate that HONO formation from NO 3 - photolysis may involve electron transfer reactions of NO 2 from photosensitized organics and that fresh snows at our site had insufficient concentrations of adequate organic compounds to favor this reaction. Article in Journal/Newspaper Antarc* Antarctica Université de Nantes: HAL-UNIV-NANTES Browning ENVELOPE(164.050,164.050,-74.617,-74.617) Browning Pass ENVELOPE(163.983,163.983,-74.600,-74.600) |
institution |
Open Polar |
collection |
Université de Nantes: HAL-UNIV-NANTES |
op_collection_id |
ftunivnantes |
language |
English |
topic |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere |
spellingShingle |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere Beine, H. J. Amoroso, A. Dominé, F. King, M. D. Nardino, M. Ianniello, A. France, J. L. Surprisingly small HONO emissions from snow surfaces at Browning Pass, Antarctica |
topic_facet |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere |
description |
International audience Measured Fluxes of nitrous acid at Browning Pass, Antarctica were very low, despite conditions that are generally understood as favorable for HONO emissions, including: acidic snow surfaces, an abundance of NO 3 - anions in the snow surface, and abundant UV light for NO 3 - photolysis. Photochemical modeling suggests noon time HONO fluxes of 5–10 nmol m -2 h -1 the measured fluxes, however, were close to zero throughout the campaign. The location and state of NO 3 - in snow is crucial to its reactivity. The analysis of soluble mineral ions in snow reveals that the NO 3 - ion is probably present in aged snows as NaNO 3 . This is peculiar to our study site, and we suggest that this may affect the photochemical reactivity of NO 3 - , by preventing the release of products, or providing a reactive medium for newly formed HONO. In fresh snow, the NO 3 - ion is probably present as dissolved or adsorbed HNO 3 and yet, no HONO emissions were observed. We speculate that HONO formation from NO 3 - photolysis may involve electron transfer reactions of NO 2 from photosensitized organics and that fresh snows at our site had insufficient concentrations of adequate organic compounds to favor this reaction. |
author2 |
C.N.R. IIA Laboratoire de glaciologie et géophysique de l'environnement (LGGE) Observatoire des Sciences de l'Univers de Grenoble (OSUG) Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) Department of Geology Royal Holloway University of London (RHUL) Istituto di Biometeorologia Bologna (IBIMET) Consiglio Nazionale delle Ricerche (CNR) |
format |
Article in Journal/Newspaper |
author |
Beine, H. J. Amoroso, A. Dominé, F. King, M. D. Nardino, M. Ianniello, A. France, J. L. |
author_facet |
Beine, H. J. Amoroso, A. Dominé, F. King, M. D. Nardino, M. Ianniello, A. France, J. L. |
author_sort |
Beine, H. J. |
title |
Surprisingly small HONO emissions from snow surfaces at Browning Pass, Antarctica |
title_short |
Surprisingly small HONO emissions from snow surfaces at Browning Pass, Antarctica |
title_full |
Surprisingly small HONO emissions from snow surfaces at Browning Pass, Antarctica |
title_fullStr |
Surprisingly small HONO emissions from snow surfaces at Browning Pass, Antarctica |
title_full_unstemmed |
Surprisingly small HONO emissions from snow surfaces at Browning Pass, Antarctica |
title_sort |
surprisingly small hono emissions from snow surfaces at browning pass, antarctica |
publisher |
HAL CCSD |
publishDate |
2006 |
url |
https://hal.science/hal-00328448 https://hal.science/hal-00328448/document https://hal.science/hal-00328448/file/acp-6-2569-2006.pdf |
long_lat |
ENVELOPE(164.050,164.050,-74.617,-74.617) ENVELOPE(163.983,163.983,-74.600,-74.600) |
geographic |
Browning Browning Pass |
geographic_facet |
Browning Browning Pass |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_source |
ISSN: 1680-7316 EISSN: 1680-7324 Atmospheric Chemistry and Physics https://hal.science/hal-00328448 Atmospheric Chemistry and Physics, 2006, 6 (9), pp.2580 |
op_relation |
hal-00328448 https://hal.science/hal-00328448 https://hal.science/hal-00328448/document https://hal.science/hal-00328448/file/acp-6-2569-2006.pdf |
op_rights |
info:eu-repo/semantics/OpenAccess |
_version_ |
1766249915133984768 |