Aerosol decadal trends - Part 2: In-situ aerosol particle number concentrations at GAW and ACTRIS stations
We have analysed the trends of total aerosol particle number concentrations (N) measured at long-term measurement stations involved either in the Global Atmosphere Watch (GAW) and/or EU infrastructure project ACTRIS. The sites are located in Europe, North America, Antarctica, and on Pacific Ocean is...
Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , |
---|---|
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
München : European Geopyhsical Union
2013
|
Subjects: | |
Online Access: | https://doi.org/10.34657/761 https://oa.tib.eu/renate/handle/123456789/688 |
id |
ftleibnizopen:oai:oai.leibnizopen.de:VTiIYIgBdbrxVwz68Umu |
---|---|
record_format |
openpolar |
spelling |
ftleibnizopen:oai:oai.leibnizopen.de:VTiIYIgBdbrxVwz68Umu 2023-06-11T04:06:34+02:00 Aerosol decadal trends - Part 2: In-situ aerosol particle number concentrations at GAW and ACTRIS stations Asmi, A. Collaud Coen, M. Ogren, J.A. Andrews, E. Sheridan, P. Jefferson, A. Weingartner, E. Baltensperger, U. Bukowiecki, N. Lihavainen, H. Kivekäs, N. Asmi, E. Aalto, P.P. Kulmala, M. Wiedensohler, A. Birmili, W. Hamed, A. O'Dowd, C. Jennings, S.G. Weller, R. Flentje, H. Fjaeraa, A.M. Fiebig, M. Myhre, C.L. Hallar, A.G. Swietlicki, E. Kristensson, A. Laj, P. 2013 application/pdf https://doi.org/10.34657/761 https://oa.tib.eu/renate/handle/123456789/688 eng eng München : European Geopyhsical Union CC BY 3.0 Unported https://creativecommons.org/licenses/by/3.0/ Atmospheric Chemistry and Physics, Volume 13, Issue 2, Page 895-916 aerosol composition air temperature cloud condensation nucleus emission nitrogen Northern Hemisphere optical property time series 550 article Text 2013 ftleibnizopen https://doi.org/10.34657/761 2023-05-28T23:12:48Z We have analysed the trends of total aerosol particle number concentrations (N) measured at long-term measurement stations involved either in the Global Atmosphere Watch (GAW) and/or EU infrastructure project ACTRIS. The sites are located in Europe, North America, Antarctica, and on Pacific Ocean islands. The majority of the sites showed clear decreasing trends both in the full-length time series, and in the intra-site comparison period of 2001–2010, especially during the winter months. Several potential driving processes for the observed trends were studied, and even though there are some similarities between N trends and air temperature changes, the most likely cause of many northern hemisphere trends was found to be decreases in the anthropogenic emissions of primary particles, SO2 or some co-emitted species. We could not find a consistent agreement between the trends of N and particle optical properties in the few stations with long time series of all of these properties. The trends of N and the proxies for cloud condensation nuclei (CCN) were generally consistent in the few European stations where the measurements were available. This work provides a useful comparison analysis for modelling studies of trends in aerosol number concentrations. publishedVersion Article in Journal/Newspaper Antarc* Antarctica LeibnizOpen (The Leibniz Association) Pacific |
institution |
Open Polar |
collection |
LeibnizOpen (The Leibniz Association) |
op_collection_id |
ftleibnizopen |
language |
English |
topic |
aerosol composition air temperature cloud condensation nucleus emission nitrogen Northern Hemisphere optical property time series 550 |
spellingShingle |
aerosol composition air temperature cloud condensation nucleus emission nitrogen Northern Hemisphere optical property time series 550 Asmi, A. Collaud Coen, M. Ogren, J.A. Andrews, E. Sheridan, P. Jefferson, A. Weingartner, E. Baltensperger, U. Bukowiecki, N. Lihavainen, H. Kivekäs, N. Asmi, E. Aalto, P.P. Kulmala, M. Wiedensohler, A. Birmili, W. Hamed, A. O'Dowd, C. Jennings, S.G. Weller, R. Flentje, H. Fjaeraa, A.M. Fiebig, M. Myhre, C.L. Hallar, A.G. Swietlicki, E. Kristensson, A. Laj, P. Aerosol decadal trends - Part 2: In-situ aerosol particle number concentrations at GAW and ACTRIS stations |
topic_facet |
aerosol composition air temperature cloud condensation nucleus emission nitrogen Northern Hemisphere optical property time series 550 |
description |
We have analysed the trends of total aerosol particle number concentrations (N) measured at long-term measurement stations involved either in the Global Atmosphere Watch (GAW) and/or EU infrastructure project ACTRIS. The sites are located in Europe, North America, Antarctica, and on Pacific Ocean islands. The majority of the sites showed clear decreasing trends both in the full-length time series, and in the intra-site comparison period of 2001–2010, especially during the winter months. Several potential driving processes for the observed trends were studied, and even though there are some similarities between N trends and air temperature changes, the most likely cause of many northern hemisphere trends was found to be decreases in the anthropogenic emissions of primary particles, SO2 or some co-emitted species. We could not find a consistent agreement between the trends of N and particle optical properties in the few stations with long time series of all of these properties. The trends of N and the proxies for cloud condensation nuclei (CCN) were generally consistent in the few European stations where the measurements were available. This work provides a useful comparison analysis for modelling studies of trends in aerosol number concentrations. publishedVersion |
format |
Article in Journal/Newspaper |
author |
Asmi, A. Collaud Coen, M. Ogren, J.A. Andrews, E. Sheridan, P. Jefferson, A. Weingartner, E. Baltensperger, U. Bukowiecki, N. Lihavainen, H. Kivekäs, N. Asmi, E. Aalto, P.P. Kulmala, M. Wiedensohler, A. Birmili, W. Hamed, A. O'Dowd, C. Jennings, S.G. Weller, R. Flentje, H. Fjaeraa, A.M. Fiebig, M. Myhre, C.L. Hallar, A.G. Swietlicki, E. Kristensson, A. Laj, P. |
author_facet |
Asmi, A. Collaud Coen, M. Ogren, J.A. Andrews, E. Sheridan, P. Jefferson, A. Weingartner, E. Baltensperger, U. Bukowiecki, N. Lihavainen, H. Kivekäs, N. Asmi, E. Aalto, P.P. Kulmala, M. Wiedensohler, A. Birmili, W. Hamed, A. O'Dowd, C. Jennings, S.G. Weller, R. Flentje, H. Fjaeraa, A.M. Fiebig, M. Myhre, C.L. Hallar, A.G. Swietlicki, E. Kristensson, A. Laj, P. |
author_sort |
Asmi, A. |
title |
Aerosol decadal trends - Part 2: In-situ aerosol particle number concentrations at GAW and ACTRIS stations |
title_short |
Aerosol decadal trends - Part 2: In-situ aerosol particle number concentrations at GAW and ACTRIS stations |
title_full |
Aerosol decadal trends - Part 2: In-situ aerosol particle number concentrations at GAW and ACTRIS stations |
title_fullStr |
Aerosol decadal trends - Part 2: In-situ aerosol particle number concentrations at GAW and ACTRIS stations |
title_full_unstemmed |
Aerosol decadal trends - Part 2: In-situ aerosol particle number concentrations at GAW and ACTRIS stations |
title_sort |
aerosol decadal trends - part 2: in-situ aerosol particle number concentrations at gaw and actris stations |
publisher |
München : European Geopyhsical Union |
publishDate |
2013 |
url |
https://doi.org/10.34657/761 https://oa.tib.eu/renate/handle/123456789/688 |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_source |
Atmospheric Chemistry and Physics, Volume 13, Issue 2, Page 895-916 |
op_rights |
CC BY 3.0 Unported https://creativecommons.org/licenses/by/3.0/ |
op_doi |
https://doi.org/10.34657/761 |
_version_ |
1768378577107025920 |