Changes in aerosol properties during spring-summer period in the Arctic troposphere
International audience The change in aerosol properties during the transition from the more polluted spring to the clean summer in the Arctic troposphere was studied. A six-year data set of observations from Ny-Ålesund on Svalbard, covering the months April through June, serve as the basis for the c...
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ftinsu:oai:HAL:hal-00296427v1 2024-02-11T10:00:41+01:00 Changes in aerosol properties during spring-summer period in the Arctic troposphere Engvall, A.-C. Krejci, R. Ström, J. Treffeisen, R. Scheele, R. Hermansen, O. Paatero, J. Department of Meteorology Stockholm University Department of Applied Environmental Science Stockholm (ITM) Norwegian Polar Institute Alfred-Wegener-Institut, Helmholtz-Zentrum für Polar- und Meeresforschung = Alfred Wegener Institute for Polar and Marine Research = Institut Alfred-Wegener pour la recherche polaire et marine (AWI) Helmholtz-Gemeinschaft = Helmholtz Association Koninklijk Nederlands Meteorologisch Instituut Postbus201 Norsk Institutt for Luftforskning (NILU) Finnish Meteorological Institute (FMI) 2008-02-01 https://hal.science/hal-00296427 https://hal.science/hal-00296427/document https://hal.science/hal-00296427/file/acp-8-445-2008.pdf en eng HAL CCSD European Geosciences Union hal-00296427 https://hal.science/hal-00296427 https://hal.science/hal-00296427/document https://hal.science/hal-00296427/file/acp-8-445-2008.pdf info:eu-repo/semantics/OpenAccess ISSN: 1680-7316 EISSN: 1680-7324 Atmospheric Chemistry and Physics https://hal.science/hal-00296427 Atmospheric Chemistry and Physics, 2008, 8 (3), pp.445-462 [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere info:eu-repo/semantics/article Journal articles 2008 ftinsu 2024-01-17T17:27:33Z International audience The change in aerosol properties during the transition from the more polluted spring to the clean summer in the Arctic troposphere was studied. A six-year data set of observations from Ny-Ålesund on Svalbard, covering the months April through June, serve as the basis for the characterisation of this time period. In addition four-day-back trajectories were used to describe air mass histories. The observed transition in aerosol properties from an accumulation-mode dominated distribution to an Aitken-mode dominated distribution is discussed with respect to long-range transport and influences from natural and anthropogenic sources of aerosols and pertinent trace gases. Our study shows that the air-mass transport is an important factor modulating the physical and chemical properties observed. However, the air-mass transport cannot alone explain the annually repeated systematic and rather rapid change in aerosol properties, occurring within a limited time window of approximately 10 days. With a simplified phenomenological model, which delivers the nucleation potential for new-particle formation, we suggest that the rapid shift in aerosol microphysical properties between the Arctic spring and summer is mainly driven by the incoming solar radiation in concert with transport of precursor gases and changes in condensational sink. Article in Journal/Newspaper Arctic Ny Ålesund Ny-Ålesund Svalbard Institut national des sciences de l'Univers: HAL-INSU Aitken ENVELOPE(-44.516,-44.516,-60.733,-60.733) Arctic Ny-Ålesund Svalbard |
institution |
Open Polar |
collection |
Institut national des sciences de l'Univers: HAL-INSU |
op_collection_id |
ftinsu |
language |
English |
topic |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere |
spellingShingle |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere Engvall, A.-C. Krejci, R. Ström, J. Treffeisen, R. Scheele, R. Hermansen, O. Paatero, J. Changes in aerosol properties during spring-summer period in the Arctic troposphere |
topic_facet |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere |
description |
International audience The change in aerosol properties during the transition from the more polluted spring to the clean summer in the Arctic troposphere was studied. A six-year data set of observations from Ny-Ålesund on Svalbard, covering the months April through June, serve as the basis for the characterisation of this time period. In addition four-day-back trajectories were used to describe air mass histories. The observed transition in aerosol properties from an accumulation-mode dominated distribution to an Aitken-mode dominated distribution is discussed with respect to long-range transport and influences from natural and anthropogenic sources of aerosols and pertinent trace gases. Our study shows that the air-mass transport is an important factor modulating the physical and chemical properties observed. However, the air-mass transport cannot alone explain the annually repeated systematic and rather rapid change in aerosol properties, occurring within a limited time window of approximately 10 days. With a simplified phenomenological model, which delivers the nucleation potential for new-particle formation, we suggest that the rapid shift in aerosol microphysical properties between the Arctic spring and summer is mainly driven by the incoming solar radiation in concert with transport of precursor gases and changes in condensational sink. |
author2 |
Department of Meteorology Stockholm University Department of Applied Environmental Science Stockholm (ITM) Norwegian Polar Institute Alfred-Wegener-Institut, Helmholtz-Zentrum für Polar- und Meeresforschung = Alfred Wegener Institute for Polar and Marine Research = Institut Alfred-Wegener pour la recherche polaire et marine (AWI) Helmholtz-Gemeinschaft = Helmholtz Association Koninklijk Nederlands Meteorologisch Instituut Postbus201 Norsk Institutt for Luftforskning (NILU) Finnish Meteorological Institute (FMI) |
format |
Article in Journal/Newspaper |
author |
Engvall, A.-C. Krejci, R. Ström, J. Treffeisen, R. Scheele, R. Hermansen, O. Paatero, J. |
author_facet |
Engvall, A.-C. Krejci, R. Ström, J. Treffeisen, R. Scheele, R. Hermansen, O. Paatero, J. |
author_sort |
Engvall, A.-C. |
title |
Changes in aerosol properties during spring-summer period in the Arctic troposphere |
title_short |
Changes in aerosol properties during spring-summer period in the Arctic troposphere |
title_full |
Changes in aerosol properties during spring-summer period in the Arctic troposphere |
title_fullStr |
Changes in aerosol properties during spring-summer period in the Arctic troposphere |
title_full_unstemmed |
Changes in aerosol properties during spring-summer period in the Arctic troposphere |
title_sort |
changes in aerosol properties during spring-summer period in the arctic troposphere |
publisher |
HAL CCSD |
publishDate |
2008 |
url |
https://hal.science/hal-00296427 https://hal.science/hal-00296427/document https://hal.science/hal-00296427/file/acp-8-445-2008.pdf |
long_lat |
ENVELOPE(-44.516,-44.516,-60.733,-60.733) |
geographic |
Aitken Arctic Ny-Ålesund Svalbard |
geographic_facet |
Aitken Arctic Ny-Ålesund Svalbard |
genre |
Arctic Ny Ålesund Ny-Ålesund Svalbard |
genre_facet |
Arctic Ny Ålesund Ny-Ålesund Svalbard |
op_source |
ISSN: 1680-7316 EISSN: 1680-7324 Atmospheric Chemistry and Physics https://hal.science/hal-00296427 Atmospheric Chemistry and Physics, 2008, 8 (3), pp.445-462 |
op_relation |
hal-00296427 https://hal.science/hal-00296427 https://hal.science/hal-00296427/document https://hal.science/hal-00296427/file/acp-8-445-2008.pdf |
op_rights |
info:eu-repo/semantics/OpenAccess |
_version_ |
1790596393089368064 |