Atmospheric particle formation events at Värriö measurement station in Finnish Lapland 1998?2002
International audience We have identified 147 clear 8 nm diameter particle formation events at the SMEAR I station in Värriö, northern Finland during calendar years 1998?2002. The events have been classified in detail according to the particle formation rate, growth rate, event starting time, differ...
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ftinsu:oai:HAL:hal-00301316v1 2023-11-12T04:23:14+01:00 Atmospheric particle formation events at Värriö measurement station in Finnish Lapland 1998?2002 Vehkamäki, H. Dal Maso, M. Hussein, T. Flanagan, R. Hyvärinen, A. Lauros, J. Merikanto, J. Mönkkönen, P. Pihlatie, M. Salminen, K. Sogacheva, L. Thum, T. Ruuskanen, T. Keronen, P. Aalto, P. P. Hari, P. Lehtinen, K. E. J. Rannik, Ü. Kulmala, M. Department of Physical Sciences P.O. Box 64 Finnish Meteorological Institute (FMI) Forest Ecology and Management Helsinki Department of Forest Sciences Helsinki Faculty of Agriculture and Forestry Helsinki Helsingin yliopisto = Helsingfors universitet = University of Helsinki-Helsingin yliopisto = Helsingfors universitet = University of Helsinki-Faculty of Agriculture and Forestry Helsinki Helsingin yliopisto = Helsingfors universitet = University of Helsinki-Helsingin yliopisto = Helsingfors universitet = University of Helsinki 2004-06-25 https://hal.science/hal-00301316 https://hal.science/hal-00301316/document https://hal.science/hal-00301316/file/acpd-4-3535-2004.pdf en eng HAL CCSD European Geosciences Union hal-00301316 https://hal.science/hal-00301316 https://hal.science/hal-00301316/document https://hal.science/hal-00301316/file/acpd-4-3535-2004.pdf info:eu-repo/semantics/OpenAccess ISSN: 1680-7367 EISSN: 1680-7375 Atmospheric Chemistry and Physics Discussions https://hal.science/hal-00301316 Atmospheric Chemistry and Physics Discussions, 2004, 4 (3), pp.3535-3563 [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere info:eu-repo/semantics/article Journal articles 2004 ftinsu 2023-11-01T17:26:04Z International audience We have identified 147 clear 8 nm diameter particle formation events at the SMEAR I station in Värriö, northern Finland during calendar years 1998?2002. The events have been classified in detail according to the particle formation rate, growth rate, event starting time, different gas phase species concentrations and pre-existing particle concentrations as well as various meteorological conditions. Most of the events occurred during the spring months between March and May, suggesting that increasing biological activity might produce the precursor gases for particle formation. The apparent 8 nm particle formation rates were around 0.1/cm 3 s, and they were uncorrelated with growth rates that vary between 0.5 and 10 nm/h. The air masses, which had clearly elevated sulphur dioxide concentrations above 1.6 ppb came, as expected, from the direction of Nikel and Monschegorsk smelteries. Only 15 formation events can be explained by the pollution plume from these sources. Article in Journal/Newspaper Northern Finland Lapland Institut national des sciences de l'Univers: HAL-INSU |
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Open Polar |
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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 Vehkamäki, H. Dal Maso, M. Hussein, T. Flanagan, R. Hyvärinen, A. Lauros, J. Merikanto, J. Mönkkönen, P. Pihlatie, M. Salminen, K. Sogacheva, L. Thum, T. Ruuskanen, T. Keronen, P. Aalto, P. P. Hari, P. Lehtinen, K. E. J. Rannik, Ü. Kulmala, M. Atmospheric particle formation events at Värriö measurement station in Finnish Lapland 1998?2002 |
topic_facet |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere |
description |
International audience We have identified 147 clear 8 nm diameter particle formation events at the SMEAR I station in Värriö, northern Finland during calendar years 1998?2002. The events have been classified in detail according to the particle formation rate, growth rate, event starting time, different gas phase species concentrations and pre-existing particle concentrations as well as various meteorological conditions. Most of the events occurred during the spring months between March and May, suggesting that increasing biological activity might produce the precursor gases for particle formation. The apparent 8 nm particle formation rates were around 0.1/cm 3 s, and they were uncorrelated with growth rates that vary between 0.5 and 10 nm/h. The air masses, which had clearly elevated sulphur dioxide concentrations above 1.6 ppb came, as expected, from the direction of Nikel and Monschegorsk smelteries. Only 15 formation events can be explained by the pollution plume from these sources. |
author2 |
Department of Physical Sciences P.O. Box 64 Finnish Meteorological Institute (FMI) Forest Ecology and Management Helsinki Department of Forest Sciences Helsinki Faculty of Agriculture and Forestry Helsinki Helsingin yliopisto = Helsingfors universitet = University of Helsinki-Helsingin yliopisto = Helsingfors universitet = University of Helsinki-Faculty of Agriculture and Forestry Helsinki Helsingin yliopisto = Helsingfors universitet = University of Helsinki-Helsingin yliopisto = Helsingfors universitet = University of Helsinki |
format |
Article in Journal/Newspaper |
author |
Vehkamäki, H. Dal Maso, M. Hussein, T. Flanagan, R. Hyvärinen, A. Lauros, J. Merikanto, J. Mönkkönen, P. Pihlatie, M. Salminen, K. Sogacheva, L. Thum, T. Ruuskanen, T. Keronen, P. Aalto, P. P. Hari, P. Lehtinen, K. E. J. Rannik, Ü. Kulmala, M. |
author_facet |
Vehkamäki, H. Dal Maso, M. Hussein, T. Flanagan, R. Hyvärinen, A. Lauros, J. Merikanto, J. Mönkkönen, P. Pihlatie, M. Salminen, K. Sogacheva, L. Thum, T. Ruuskanen, T. Keronen, P. Aalto, P. P. Hari, P. Lehtinen, K. E. J. Rannik, Ü. Kulmala, M. |
author_sort |
Vehkamäki, H. |
title |
Atmospheric particle formation events at Värriö measurement station in Finnish Lapland 1998?2002 |
title_short |
Atmospheric particle formation events at Värriö measurement station in Finnish Lapland 1998?2002 |
title_full |
Atmospheric particle formation events at Värriö measurement station in Finnish Lapland 1998?2002 |
title_fullStr |
Atmospheric particle formation events at Värriö measurement station in Finnish Lapland 1998?2002 |
title_full_unstemmed |
Atmospheric particle formation events at Värriö measurement station in Finnish Lapland 1998?2002 |
title_sort |
atmospheric particle formation events at värriö measurement station in finnish lapland 1998?2002 |
publisher |
HAL CCSD |
publishDate |
2004 |
url |
https://hal.science/hal-00301316 https://hal.science/hal-00301316/document https://hal.science/hal-00301316/file/acpd-4-3535-2004.pdf |
genre |
Northern Finland Lapland |
genre_facet |
Northern Finland Lapland |
op_source |
ISSN: 1680-7367 EISSN: 1680-7375 Atmospheric Chemistry and Physics Discussions https://hal.science/hal-00301316 Atmospheric Chemistry and Physics Discussions, 2004, 4 (3), pp.3535-3563 |
op_relation |
hal-00301316 https://hal.science/hal-00301316 https://hal.science/hal-00301316/document https://hal.science/hal-00301316/file/acpd-4-3535-2004.pdf |
op_rights |
info:eu-repo/semantics/OpenAccess |
_version_ |
1782338080974307328 |