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Thomas Holst

Forskare

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Analysis of particle size distribution changes between three measurement sites in Northern Scandinavia

Författare

  • Riikka Väänänen
  • Ella Maria Kyrö
  • Tuomo Nieminen
  • Niku Kivekäs
  • Heikki Junninen
  • Aki Virkkula
  • Miikka Dal Maso
  • Heikki Lihavainen
  • Yrjö Viisanen
  • Birgitta Svenningsson
  • Thomas Holst
  • Almut Arneth
  • Pasi P. Aalto
  • Markku Kulmala
  • Veli Matti Kerminen
Visa allt

Summary, in English

Measured aerosol size distributions from three measurement stations and modeled air mass trajectory data were combined to study aerosol dynamics in the boreal forest zone in Northern Scandinavia. Three approaches were used: investigation of new particle formation events, analysis of air masses arriving from ocean to continent, and study of changes in the aerosol size distributions when air masses travel from one measurement site to another. The statistical analysis of air masses travelling either from the Atlantic Ocean to measurement sites or from one site to another showed that on average the condensational growth was present during the summer season, and it was not restricted only to the days when evident new particle formation was observed. The rate of this average apparent growth of particle diameter was 3-7 times smaller than the growth rate of nucleation mode particles during the new particle formation events.

Avdelning/ar

  • Fysiska institutionen
  • MERGE: ModElling the Regional and Global Earth system
  • Institutionen för naturgeografi och ekosystemvetenskap

Publiceringsår

2013

Språk

Engelska

Sidor

531-534

Publikation/Tidskrift/Serie

AIP Conference Proceedings

Volym

1527

Dokumenttyp

Konferensbidrag

Ämne

  • Subatomic Physics
  • Physical Geography

Nyckelord

  • Aerosol
  • aerosol dynamics
  • aerosol size distribution
  • air mass analysis

Conference name

19th International Conference on Nucleation and Atmospheric Aerosols, ICNAA 2013

Conference date

2013-06-23 - 2013-06-28

Conference place

Fort Collins, CO, United States

Status

Published

ISBN/ISSN/Övrigt

  • ISSN: 1551-7616
  • ISSN: 0094-243X
  • ISBN: 9780735411524