Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4450671 | Atmospheric Research | 2010 | 7 Pages |
Abstract
A new technique for the sampling of atmospheric ice nuclei is presented. Aerosols are electrostatically precipitated onto silicon discs, and are subsequently analyzed in a diffusion chamber. The method is compared to continuous flow chamber measurements and to membrane filter measurements of ice nuclei. Ice nucleus measurements obtained using this new method compare well to the continuous flow chamber measurements. In contrast, membrane filters were found to lead to serious underestimates of the ice nuclei number concentration when the filters were treated with a pore sealant and analyzed under vacuum. This confirms previous findings of other authors.The electrostatic aerosol collection device is lightweight and easy to handle.
Keywords
Related Topics
Physical Sciences and Engineering
Earth and Planetary Sciences
Atmospheric Science
Authors
Holger Klein, Werner Haunold, Ulrich Bundke, Bjoern Nillius, Thomas Wetter, Stephan Schallenberg, Heinz Bingemer,