Nitrate postdeposition processes in Svalbard surface snow
International audience The snowpack acts as a sink for atmospheric reactive nitrogen, but several postdeposition pathways have been reported to alter the concentration and isotopic composition of snow nitrate with implications for atmospheric boundary layer chemistry, ice core records, and terrestri...
Published in: | Journal of Geophysical Research: Atmospheres |
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Main Authors: | , , , , , , , , , , |
Other Authors: | , , , , , , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2014
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Subjects: | |
Online Access: | https://hal-insu.archives-ouvertes.fr/insu-01172714 https://hal-insu.archives-ouvertes.fr/insu-01172714/document https://hal-insu.archives-ouvertes.fr/insu-01172714/file/Bjrkman_et_al-2014-Journal_of_Geophysical_Research__Atmospheres.pdf https://doi.org/10.1002/2013JD021234 |
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Open Polar |
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Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
op_collection_id |
ftccsdartic |
language |
English |
topic |
[SDU]Sciences of the Universe [physics] |
spellingShingle |
[SDU]Sciences of the Universe [physics] Björkman, Mats Vega, Carmen P. Kühnel, Rafael Spataro, Francesca Ianniello, Antonietta Esposito, Giulio Kaiser, Jan Marca, Alina Hodson, Andy Isaksson, Elisabeth Roberts, Tjarda J. Nitrate postdeposition processes in Svalbard surface snow |
topic_facet |
[SDU]Sciences of the Universe [physics] |
description |
International audience The snowpack acts as a sink for atmospheric reactive nitrogen, but several postdeposition pathways have been reported to alter the concentration and isotopic composition of snow nitrate with implications for atmospheric boundary layer chemistry, ice core records, and terrestrial ecology following snow melt. Careful daily sampling of surface snow during winter (11–15 February 2010) and springtime (9 April to 5 May 2010) near Ny-Ålesund, Svalbard reveals a complex pattern of processes within the snowpack. Dry deposition was found to dominate over postdeposition losses, with a net nitrate deposition rate of (0.6 ± 0.2) μmol m À2 d À1 to homogeneous surface snow. At Ny-Ålesund, such surface dry deposition can either solely result from long-range atmospheric transport of oxidized nitrogen or include the redeposition of photolytic/bacterial emission originating from deeper snow layers. Our data further confirm that polar basin air masses bring 15 N-depleted nitrate to Svalbard, while high nitrate δ(18 O) values only occur in connection with ozone-depleted air, and show that these signatures are reflected in the deposited nitrate. Such ozone-depleted air is attributed to active halogen chemistry in the air masses advected to the site. However, here the Ny-Ålesund surface snow was shown to have an active role in the halogen dynamics for this region, as indicated by declining bromide concentrations and increasing nitrate δ(18 O), during high BrO (low-ozone) events. The data also indicate that the snowpack BrO-NO x cycling continued in postevent periods, when ambient ozone and BrO levels recovered. |
author2 |
Department of Geosciences Oslo Faculty of Mathematics and Natural Sciences Oslo University of Oslo (UiO)-University of Oslo (UiO) Norwegian Polar Institute Department of Earth Sciences - Palaeobiology Uppsala Uppsala University Istituto sull’Inquinamento Atmosferico (CNR-IIA) Consiglio Nazionale delle Ricerche (CNR) School of Environmental Sciences Norwich University of East Anglia Norwich (UEA) Department of Geography Sheffield University of Sheffield Sheffield Laboratoire de Physique et Chimie de l'Environnement et de l'Espace (LPC2E) Observatoire des Sciences de l'Univers en région Centre (OSUC) Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales Paris (CNES) Arctic Field Grant, Svalbard Science Forum ANR-10-LABX-0100,VOLTAIRE,Geofluids and Volatil elements – Earth, Atmosphere, Interfaces – Resources and Environment(2010) European Project: 215503,EC:FP7:PEOPLE,FP7-PEOPLE-2007-1-1-ITN,NSINK(2008) |
format |
Article in Journal/Newspaper |
author |
Björkman, Mats Vega, Carmen P. Kühnel, Rafael Spataro, Francesca Ianniello, Antonietta Esposito, Giulio Kaiser, Jan Marca, Alina Hodson, Andy Isaksson, Elisabeth Roberts, Tjarda J. |
author_facet |
Björkman, Mats Vega, Carmen P. Kühnel, Rafael Spataro, Francesca Ianniello, Antonietta Esposito, Giulio Kaiser, Jan Marca, Alina Hodson, Andy Isaksson, Elisabeth Roberts, Tjarda J. |
author_sort |
Björkman, Mats |
title |
Nitrate postdeposition processes in Svalbard surface snow |
title_short |
Nitrate postdeposition processes in Svalbard surface snow |
title_full |
Nitrate postdeposition processes in Svalbard surface snow |
title_fullStr |
Nitrate postdeposition processes in Svalbard surface snow |
title_full_unstemmed |
Nitrate postdeposition processes in Svalbard surface snow |
title_sort |
nitrate postdeposition processes in svalbard surface snow |
publisher |
HAL CCSD |
publishDate |
2014 |
url |
https://hal-insu.archives-ouvertes.fr/insu-01172714 https://hal-insu.archives-ouvertes.fr/insu-01172714/document https://hal-insu.archives-ouvertes.fr/insu-01172714/file/Bjrkman_et_al-2014-Journal_of_Geophysical_Research__Atmospheres.pdf https://doi.org/10.1002/2013JD021234 |
geographic |
Ny-Ålesund Svalbard |
geographic_facet |
Ny-Ålesund Svalbard |
genre |
Arctic ice core Ny Ålesund Ny-Ålesund Svalbard |
genre_facet |
Arctic ice core Ny Ålesund Ny-Ålesund Svalbard |
op_source |
ISSN: 2169-897X EISSN: 2169-8996 Journal of Geophysical Research: Atmospheres https://hal-insu.archives-ouvertes.fr/insu-01172714 Journal of Geophysical Research: Atmospheres, American Geophysical Union, 2014, 119 (22), pp.12953-12976. ⟨10.1002/2013JD021234⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1002/2013JD021234 info:eu-repo/grantAgreement/EC/FP7/215503/EU/Training in sources, sinks and impacts of atmospheric nitrogen deposition in the Arctic/NSINK insu-01172714 https://hal-insu.archives-ouvertes.fr/insu-01172714 https://hal-insu.archives-ouvertes.fr/insu-01172714/document https://hal-insu.archives-ouvertes.fr/insu-01172714/file/Bjrkman_et_al-2014-Journal_of_Geophysical_Research__Atmospheres.pdf doi:10.1002/2013JD021234 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1002/2013JD021234 |
container_title |
Journal of Geophysical Research: Atmospheres |
container_volume |
119 |
container_issue |
22 |
container_start_page |
12,953 |
op_container_end_page |
12,976 |
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1766301636679958528 |
spelling |
ftccsdartic:oai:HAL:insu-01172714v1 2023-05-15T14:27:44+02:00 Nitrate postdeposition processes in Svalbard surface snow Björkman, Mats Vega, Carmen P. Kühnel, Rafael Spataro, Francesca Ianniello, Antonietta Esposito, Giulio Kaiser, Jan Marca, Alina Hodson, Andy Isaksson, Elisabeth Roberts, Tjarda J. Department of Geosciences Oslo Faculty of Mathematics and Natural Sciences Oslo University of Oslo (UiO)-University of Oslo (UiO) Norwegian Polar Institute Department of Earth Sciences - Palaeobiology Uppsala Uppsala University Istituto sull’Inquinamento Atmosferico (CNR-IIA) Consiglio Nazionale delle Ricerche (CNR) School of Environmental Sciences Norwich University of East Anglia Norwich (UEA) Department of Geography Sheffield University of Sheffield Sheffield Laboratoire de Physique et Chimie de l'Environnement et de l'Espace (LPC2E) Observatoire des Sciences de l'Univers en région Centre (OSUC) Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales Paris (CNES) Arctic Field Grant, Svalbard Science Forum ANR-10-LABX-0100,VOLTAIRE,Geofluids and Volatil elements – Earth, Atmosphere, Interfaces – Resources and Environment(2010) European Project: 215503,EC:FP7:PEOPLE,FP7-PEOPLE-2007-1-1-ITN,NSINK(2008) 2014 https://hal-insu.archives-ouvertes.fr/insu-01172714 https://hal-insu.archives-ouvertes.fr/insu-01172714/document https://hal-insu.archives-ouvertes.fr/insu-01172714/file/Bjrkman_et_al-2014-Journal_of_Geophysical_Research__Atmospheres.pdf https://doi.org/10.1002/2013JD021234 en eng HAL CCSD American Geophysical Union info:eu-repo/semantics/altIdentifier/doi/10.1002/2013JD021234 info:eu-repo/grantAgreement/EC/FP7/215503/EU/Training in sources, sinks and impacts of atmospheric nitrogen deposition in the Arctic/NSINK insu-01172714 https://hal-insu.archives-ouvertes.fr/insu-01172714 https://hal-insu.archives-ouvertes.fr/insu-01172714/document https://hal-insu.archives-ouvertes.fr/insu-01172714/file/Bjrkman_et_al-2014-Journal_of_Geophysical_Research__Atmospheres.pdf doi:10.1002/2013JD021234 info:eu-repo/semantics/OpenAccess ISSN: 2169-897X EISSN: 2169-8996 Journal of Geophysical Research: Atmospheres https://hal-insu.archives-ouvertes.fr/insu-01172714 Journal of Geophysical Research: Atmospheres, American Geophysical Union, 2014, 119 (22), pp.12953-12976. ⟨10.1002/2013JD021234⟩ [SDU]Sciences of the Universe [physics] info:eu-repo/semantics/article Journal articles 2014 ftccsdartic https://doi.org/10.1002/2013JD021234 2021-11-21T03:07:29Z International audience The snowpack acts as a sink for atmospheric reactive nitrogen, but several postdeposition pathways have been reported to alter the concentration and isotopic composition of snow nitrate with implications for atmospheric boundary layer chemistry, ice core records, and terrestrial ecology following snow melt. Careful daily sampling of surface snow during winter (11–15 February 2010) and springtime (9 April to 5 May 2010) near Ny-Ålesund, Svalbard reveals a complex pattern of processes within the snowpack. Dry deposition was found to dominate over postdeposition losses, with a net nitrate deposition rate of (0.6 ± 0.2) μmol m À2 d À1 to homogeneous surface snow. At Ny-Ålesund, such surface dry deposition can either solely result from long-range atmospheric transport of oxidized nitrogen or include the redeposition of photolytic/bacterial emission originating from deeper snow layers. Our data further confirm that polar basin air masses bring 15 N-depleted nitrate to Svalbard, while high nitrate δ(18 O) values only occur in connection with ozone-depleted air, and show that these signatures are reflected in the deposited nitrate. Such ozone-depleted air is attributed to active halogen chemistry in the air masses advected to the site. However, here the Ny-Ålesund surface snow was shown to have an active role in the halogen dynamics for this region, as indicated by declining bromide concentrations and increasing nitrate δ(18 O), during high BrO (low-ozone) events. The data also indicate that the snowpack BrO-NO x cycling continued in postevent periods, when ambient ozone and BrO levels recovered. Article in Journal/Newspaper Arctic ice core Ny Ålesund Ny-Ålesund Svalbard Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Ny-Ålesund Svalbard Journal of Geophysical Research: Atmospheres 119 22 12,953 12,976 |