Your browser has javascript turned off or blocked. This will lead to some parts of our website to not work properly or at all. Turn on javascript for best performance.

The browser you are using is not supported by this website. All versions of Internet Explorer are no longer supported, either by us or Microsoft (read more here: https://www.microsoft.com/en-us/microsoft-365/windows/end-of-ie-support).

Please use a modern browser to fully experience our website, such as the newest versions of Edge, Chrome, Firefox or Safari etc.

Default user image.

Göran Frank

Director of graduate studies

Default user image.

Field validation of the droplet aerosol analyser

Author

  • S. I. Cederfelt
  • B. G. Martinsson
  • B. Svenningsson
  • A. Weidensohler
  • G. Frank
  • H. C. Hansson
  • E. Swietlicki
  • M. Wendish
  • K. M. Beswick
  • K. N. Bower
  • M. W. Gallagher
  • S. Pahl
  • R. Maser
  • D. Schell

Summary, in English

A new instrument for the study of cloud droplets and its relation to aerosol particles, the droplet aerosol analyser (DAA), was for the first time used in a field campaign. The DAA has the unique feature of measuring the ambient size of cloud droplets or cloud interstitial aerosol particles together with the size of its dry residue. This is obtained with a two-parameter data acquisition technique which results in a three-dimensional data set (ambient size, dry residue size, number concentration). The principle and design of the DAA is briefly described. The DAA was intercompared with differential mobility particle sizers, particulate volume monitors and a forward scattering spectrometer probe with respect to interstitial and cloud droplet dry residue size distribution as well as particle-size-dependent scavenging due to cloud droplet nucleation and for cloud droplet number concentration and size distribution and cloud liquid water concentration. Overall, the DAA showed good agreement with respect to all these six aerosol/cloud properties.

Department/s

  • Nuclear physics

Publishing year

1997-08-01

Language

English

Pages

2657-2670

Publication/Series

Atmospheric Environment

Volume

31

Issue

16

Document type

Journal article

Publisher

Elsevier

Topic

  • Subatomic Physics

Keywords

  • Cloud
  • Intercomparison
  • Liquid water concentration
  • Nucleation scavenging
  • Size distribution

Status

Published

ISBN/ISSN/Other

  • ISSN: 1352-2310