Number size distributions and seasonality of submicron particles in Europe 2008–2009
Two years of harmonized aerosol number size distribution data from 24 European field monitoring sites have been analysed. The results give a comprehensive overview of the European near surface aerosol particle number concentrations and number size distributions between 30 and 500 nm of dry particle...
Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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Format: | Article in Journal/Newspaper |
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München : European Geopyhsical Union
2011
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Online Access: | https://dx.doi.org/10.34657/1140 https://oa.tib.eu/renate/handle/123456789/507 |
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DataCite Metadata Store (German National Library of Science and Technology) |
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topic |
aerosol aerosol formation concentration composition particle size seasonal variation size distribution spatial distribution temporal distribution 550 |
spellingShingle |
aerosol aerosol formation concentration composition particle size seasonal variation size distribution spatial distribution temporal distribution 550 Asmi, A. Wiedensohler, A. Laj, P. Fjaeraa, A.-M. Sellegri, K. Birmili, W. Weingartner, E. Baltensperger, U. Zdimal, V. Zikova, N. Putaud, J.-P. Marinoni, A. Tunved, P. Hansson, H.-C. Fiebig, M. Kivekäs, N. Lihavainen, H. Asmi, E. Ulevicius, V. Aalto, P.P. Swietlicki, E. Kristensson, A. Mihalopoulos, N. Kalivitis, N. Kalapov, I. Kiss, G. De Leeuw, G. Henzing, B. Harrison, R.M. Beddows, D. O'Dowd, C. Jennings, S.G. Flentje, H. Weinhold, K. Meinhardt, F. Ries, L. Kulmala, M. Number size distributions and seasonality of submicron particles in Europe 2008–2009 |
topic_facet |
aerosol aerosol formation concentration composition particle size seasonal variation size distribution spatial distribution temporal distribution 550 |
description |
Two years of harmonized aerosol number size distribution data from 24 European field monitoring sites have been analysed. The results give a comprehensive overview of the European near surface aerosol particle number concentrations and number size distributions between 30 and 500 nm of dry particle diameter. Spatial and temporal distribution of aerosols in the particle sizes most important for climate applications are presented. We also analyse the annual, weekly and diurnal cycles of the aerosol number concentrations, provide log-normal fitting parameters for median number size distributions, and give guidance notes for data users. Emphasis is placed on the usability of results within the aerosol modelling community. We also show that the aerosol number concentrations of Aitken and accumulation mode particles (with 100 nm dry diameter as a cut-off between modes) are related, although there is significant variation in the ratios of the modal number concentrations. Different aerosol and station types are distinguished from this data and this methodology has potential for further categorization of stations aerosol number size distribution types. The European submicron aerosol was divided into characteristic types: Central European aerosol, characterized by single mode median size distributions, unimodal number concentration histograms and low variability in CCN-sized aerosol number concentrations; Nordic aerosol with low number concentrations, although showing pronounced seasonal variation of especially Aitken mode particles; Mountain sites (altitude over 1000 m a.s.l.) with a strong seasonal cycle in aerosol number concentrations, high variability, and very low median number concentrations. Southern and Western European regions had fewer stations, which decreases the regional coverage of these results. Aerosol number concentrations over the Britain and Ireland had very high variance and there are indications of mixed air masses from several source regions; the Mediterranean aerosol exhibit high seasonality, and a strong accumulation mode in the summer. The greatest concentrations were observed at the Ispra station in Northern Italy with high accumulation mode number concentrations in the winter. The aerosol number concentrations at the Arctic station Zeppelin in Ny-\AA lesund in Svalbard have also a strong seasonal cycle, with greater concentrations of accumulation mode particles in winter, and dominating summer Aitken mode indicating more recently formed particles. Observed particles did not show any statistically significant regional work-week or weekday related variation in number concentrations studied. Analysis products are made for open-access to the research community, available in a freely accessible internet site. The results give to the modelling community a reliable, easy-to-use and freely available comparison dataset of aerosol size distributions. |
format |
Article in Journal/Newspaper |
author |
Asmi, A. Wiedensohler, A. Laj, P. Fjaeraa, A.-M. Sellegri, K. Birmili, W. Weingartner, E. Baltensperger, U. Zdimal, V. Zikova, N. Putaud, J.-P. Marinoni, A. Tunved, P. Hansson, H.-C. Fiebig, M. Kivekäs, N. Lihavainen, H. Asmi, E. Ulevicius, V. Aalto, P.P. Swietlicki, E. Kristensson, A. Mihalopoulos, N. Kalivitis, N. Kalapov, I. Kiss, G. De Leeuw, G. Henzing, B. Harrison, R.M. Beddows, D. O'Dowd, C. Jennings, S.G. Flentje, H. Weinhold, K. Meinhardt, F. Ries, L. Kulmala, M. |
author_facet |
Asmi, A. Wiedensohler, A. Laj, P. Fjaeraa, A.-M. Sellegri, K. Birmili, W. Weingartner, E. Baltensperger, U. Zdimal, V. Zikova, N. Putaud, J.-P. Marinoni, A. Tunved, P. Hansson, H.-C. Fiebig, M. Kivekäs, N. Lihavainen, H. Asmi, E. Ulevicius, V. Aalto, P.P. Swietlicki, E. Kristensson, A. Mihalopoulos, N. Kalivitis, N. Kalapov, I. Kiss, G. De Leeuw, G. Henzing, B. Harrison, R.M. Beddows, D. O'Dowd, C. Jennings, S.G. Flentje, H. Weinhold, K. Meinhardt, F. Ries, L. Kulmala, M. |
author_sort |
Asmi, A. |
title |
Number size distributions and seasonality of submicron particles in Europe 2008–2009 |
title_short |
Number size distributions and seasonality of submicron particles in Europe 2008–2009 |
title_full |
Number size distributions and seasonality of submicron particles in Europe 2008–2009 |
title_fullStr |
Number size distributions and seasonality of submicron particles in Europe 2008–2009 |
title_full_unstemmed |
Number size distributions and seasonality of submicron particles in Europe 2008–2009 |
title_sort |
number size distributions and seasonality of submicron particles in europe 2008–2009 |
publisher |
München : European Geopyhsical Union |
publishDate |
2011 |
url |
https://dx.doi.org/10.34657/1140 https://oa.tib.eu/renate/handle/123456789/507 |
long_lat |
ENVELOPE(-44.516,-44.516,-60.733,-60.733) ENVELOPE(8.470,8.470,63.331,63.331) |
geographic |
Aitken Arctic Lesund Svalbard |
geographic_facet |
Aitken Arctic Lesund Svalbard |
genre |
Arctic Svalbard |
genre_facet |
Arctic Svalbard |
op_rights |
Creative Commons Attribution 3.0 Unported CC BY 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.34657/1140 |
_version_ |
1766349717625634816 |
spelling |
ftdatacite:10.34657/1140 2023-05-15T15:19:31+02:00 Number size distributions and seasonality of submicron particles in Europe 2008–2009 Asmi, A. Wiedensohler, A. Laj, P. Fjaeraa, A.-M. Sellegri, K. Birmili, W. Weingartner, E. Baltensperger, U. Zdimal, V. Zikova, N. Putaud, J.-P. Marinoni, A. Tunved, P. Hansson, H.-C. Fiebig, M. Kivekäs, N. Lihavainen, H. Asmi, E. Ulevicius, V. Aalto, P.P. Swietlicki, E. Kristensson, A. Mihalopoulos, N. Kalivitis, N. Kalapov, I. Kiss, G. De Leeuw, G. Henzing, B. Harrison, R.M. Beddows, D. O'Dowd, C. Jennings, S.G. Flentje, H. Weinhold, K. Meinhardt, F. Ries, L. Kulmala, M. 2011 application/pdf https://dx.doi.org/10.34657/1140 https://oa.tib.eu/renate/handle/123456789/507 unknown München : European Geopyhsical Union Creative Commons Attribution 3.0 Unported CC BY 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 CC-BY aerosol aerosol formation concentration composition particle size seasonal variation size distribution spatial distribution temporal distribution 550 CreativeWork article 2011 ftdatacite https://doi.org/10.34657/1140 2022-03-10T12:43:22Z Two years of harmonized aerosol number size distribution data from 24 European field monitoring sites have been analysed. The results give a comprehensive overview of the European near surface aerosol particle number concentrations and number size distributions between 30 and 500 nm of dry particle diameter. Spatial and temporal distribution of aerosols in the particle sizes most important for climate applications are presented. We also analyse the annual, weekly and diurnal cycles of the aerosol number concentrations, provide log-normal fitting parameters for median number size distributions, and give guidance notes for data users. Emphasis is placed on the usability of results within the aerosol modelling community. We also show that the aerosol number concentrations of Aitken and accumulation mode particles (with 100 nm dry diameter as a cut-off between modes) are related, although there is significant variation in the ratios of the modal number concentrations. Different aerosol and station types are distinguished from this data and this methodology has potential for further categorization of stations aerosol number size distribution types. The European submicron aerosol was divided into characteristic types: Central European aerosol, characterized by single mode median size distributions, unimodal number concentration histograms and low variability in CCN-sized aerosol number concentrations; Nordic aerosol with low number concentrations, although showing pronounced seasonal variation of especially Aitken mode particles; Mountain sites (altitude over 1000 m a.s.l.) with a strong seasonal cycle in aerosol number concentrations, high variability, and very low median number concentrations. Southern and Western European regions had fewer stations, which decreases the regional coverage of these results. Aerosol number concentrations over the Britain and Ireland had very high variance and there are indications of mixed air masses from several source regions; the Mediterranean aerosol exhibit high seasonality, and a strong accumulation mode in the summer. The greatest concentrations were observed at the Ispra station in Northern Italy with high accumulation mode number concentrations in the winter. The aerosol number concentrations at the Arctic station Zeppelin in Ny-\AA lesund in Svalbard have also a strong seasonal cycle, with greater concentrations of accumulation mode particles in winter, and dominating summer Aitken mode indicating more recently formed particles. Observed particles did not show any statistically significant regional work-week or weekday related variation in number concentrations studied. Analysis products are made for open-access to the research community, available in a freely accessible internet site. The results give to the modelling community a reliable, easy-to-use and freely available comparison dataset of aerosol size distributions. Article in Journal/Newspaper Arctic Svalbard DataCite Metadata Store (German National Library of Science and Technology) Aitken ENVELOPE(-44.516,-44.516,-60.733,-60.733) Arctic Lesund ENVELOPE(8.470,8.470,63.331,63.331) Svalbard |