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...

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Published in:Journal of Geophysical Research: Atmospheres
Main Authors: Björkman, Mats, Vega, Carmen P., Kühnel, Rafael, Spataro, Francesca, Ianniello, Antonietta, Esposito, Giulio, Kaiser, Jan, Marca, Alina, Hodson, Andy, Isaksson, Elisabeth, Roberts, Tjarda J.
Other Authors: 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
Language:English
Published: HAL CCSD 2014
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
id ftunivparis:oai:HAL:insu-01172714v1
record_format openpolar
institution Open Polar
collection Université de Paris: Portail HAL
op_collection_id ftunivparis
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, 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
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spelling ftunivparis:oai:HAL:insu-01172714v1 2023-06-11T04:07:46+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, 2014, 119 (22), pp.12953-12976. ⟨10.1002/2013JD021234⟩ [SDU]Sciences of the Universe [physics] info:eu-repo/semantics/article Journal articles 2014 ftunivparis https://doi.org/10.1002/2013JD021234 2023-05-03T16:27:50Z 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 Université de Paris: Portail HAL Ny-Ålesund Svalbard Journal of Geophysical Research: Atmospheres 119 22