Aerosol decadal trends – Part 2. In-situ aerosol particle number concentrations at GAW and ACTRIS stations

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Autor:innen
Asmi, Ari
Collaud Coen, Martine
Ogren, John A.
Andrews, Elisabeth
Sheridan, Patrick
Jefferson, Anne
Baltensperger, Urs
Bukowiecki, Nicolas
Lihavainen, Heikki
Autor:in (Körperschaft)
Publikationsdatum
2013
Typ der Arbeit
Studiengang
Typ
01A - Beitrag in wissenschaftlicher Zeitschrift
Herausgeber:innen
Herausgeber:in (Körperschaft)
Betreuer:in
Übergeordnetes Werk
Atmospheric Chemistry and Physics
Themenheft
DOI der Originalpublikation
Link
Reihe / Serie
Reihennummer
Jahrgang / Band
13
Ausgabe / Nummer
2
Seiten / Dauer
895–916
Patentnummer
Verlag / Herausgebende Institution
Copernicus
Verlagsort / Veranstaltungsort
Göttingen
Auflage
Version
Programmiersprache
Abtretungsempfänger:in
Praxispartner:in/Auftraggeber:in
Zusammenfassung
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.
Schlagwörter
Fachgebiet (DDC)
550 - Geowissenschaften
Projekt
Veranstaltung
Startdatum der Ausstellung
Enddatum der Ausstellung
Startdatum der Konferenz
Enddatum der Konferenz
Datum der letzten Prüfung
ISBN
ISSN
1680-7324
1680-7316
Sprache
Englisch
Während FHNW Zugehörigkeit erstellt
Nein
Publikationsstatus
Veröffentlicht
Begutachtung
Peer-Review der ganzen Publikation
Open Access-Status
Gold
Lizenz
'https://creativecommons.org/licenses/by/4.0/'
Zitation
ASMI, Ari, Martine COLLAUD COEN, John A. OGREN, Elisabeth ANDREWS, Patrick SHERIDAN, Anne JEFFERSON, Ernest WEINGARTNER, Urs BALTENSPERGER, Nicolas BUKOWIECKI, Heikki LIHAVAINEN, Niku KIVEKÄS, Eija ASMI, P. P. AALTO, Markku KULMALA, Alfred WIEDENSOHLER, Wolfram BIRMILI, Amar HAMED, Colin O’DOWD, S. G. JENNINGS, Rolf WELLER, Harald FLENTJE, Ann Mari FJAERAA, Markus FIEBIG, Cathrine Lund MYHRE, Anna Gannet HALLAR, Erik SWIETLICKI, Adam KRISTENSSON und Paolo LAJ, 2013. Aerosol decadal trends – Part 2. In-situ aerosol particle number concentrations at GAW and ACTRIS stations. Atmospheric Chemistry and Physics. 2013. Bd. 13, Nr. 2, S. 895–916. DOI 10.5194/acp-13-895-2013. Verfügbar unter: https://doi.org/10.26041/fhnw-8164