Preprints
https://doi.org/10.5194/ar-2024-14
https://doi.org/10.5194/ar-2024-14
27 May 2024
 | 27 May 2024
Status: this preprint is currently under review for the journal AR.

On the potential of Cluster Ion Counter (CIC) to observe local new particle formation, condensation sink and growth rate of newly formed particles

Markku Kulmala, Santeri Tuovinen, Sander Mirme, Paap Koemets, Lauri Ahonen, Yongchun Liu, Heikki Junninen, Tuukka Petäjä, and Veli-Matti Kerminen

Abstract. Cluster Ion Counter (CIC) is a simple 3-channel instrument designed to observe ions in the diameter range from 1.0 to 5 nm. With the three channels, we can observe concentrations of both ion clusters (sub-2 nm ions) and intermediate ions. Furthermore, as derived here, we can estimate condensation sink, intensity of local new particle formation, growth rate of newly formed particles from 2 nm to 3 nm, and formation rate of 2 nm ions. We compared CIC measurements with those of a multichannel ion spectrometer, the Neutral cluster and Air Ion Spectrometer (NAIS), and found that the concentrations agreed well between the two instruments, with the correlation coefficients of 0.89 and 0.86 for sub-2 nm and 2.0‒2.3 nm ions, respectively. According to the observations made in Hyytiälä, Finland and Beijing, China, the ion source rate was estimated to be about 2‒4 ion pairs cm‒3 s‒1.

Publisher's note: Copernicus Publications remains neutral with regard to jurisdictional claims made in the text, published maps, institutional affiliations, or any other geographical representation in this preprint. The responsibility to include appropriate place names lies with the authors.
Markku Kulmala, Santeri Tuovinen, Sander Mirme, Paap Koemets, Lauri Ahonen, Yongchun Liu, Heikki Junninen, Tuukka Petäjä, and Veli-Matti Kerminen

Status: open (until 08 Jul 2024)

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
Markku Kulmala, Santeri Tuovinen, Sander Mirme, Paap Koemets, Lauri Ahonen, Yongchun Liu, Heikki Junninen, Tuukka Petäjä, and Veli-Matti Kerminen
Markku Kulmala, Santeri Tuovinen, Sander Mirme, Paap Koemets, Lauri Ahonen, Yongchun Liu, Heikki Junninen, Tuukka Petäjä, and Veli-Matti Kerminen

Viewed

Total article views: 102 (including HTML, PDF, and XML)
HTML PDF XML Total BibTeX EndNote
64 29 9 102 5 6
  • HTML: 64
  • PDF: 29
  • XML: 9
  • Total: 102
  • BibTeX: 5
  • EndNote: 6
Views and downloads (calculated since 27 May 2024)
Cumulative views and downloads (calculated since 27 May 2024)

Viewed (geographical distribution)

Total article views: 103 (including HTML, PDF, and XML) Thereof 103 with geography defined and 0 with unknown origin.
Country # Views %
  • 1
1
 
 
 
 
Latest update: 20 Jun 2024
Download
Short summary
With the recently developed instrument CIC (cluster ion counter) we can observe dynamics of small air ions and intermediate air ions. Furthermore we can observe condensation sink and formation and growth rates for intermediated ions.
Altmetrics