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| Titel |
Characterization of ions at Alpine waterfalls |
| VerfasserIn |
P. Kolarž, M. Gaisberger, P. Madl, W. Hofmann, M. Ritter, A. Hartl |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1680-7316
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| Digitales Dokument |
URL |
| Erschienen |
In: Atmospheric Chemistry and Physics ; 12, no. 8 ; Nr. 12, no. 8 (2012-04-24), S.3687-3697 |
| Datensatznummer |
250011070
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| Publikation (Nr.) |
 copernicus.org/acp-12-3687-2012.pdf |
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| Zusammenfassung |
| During a three-year field campaign of measuring waterfall generated ions, we
monitored five different waterfalls in the Austrian Alps. Most measurements
were performed at the Krimml waterfall (Salzburg, Austria), which is the
biggest waterfall in Europe, and the Gartl waterfall (Mölltal, Austria).
We characterized spatial, time and size distributions of waterfall-generated
ions under the influence of surrounding topography. The smallest ions with
boundary diameters of 0.9, 1.5 and 2 nm, were measured with a cylindrical
air ion detector (CDI-06), while ion sizes from 5.5 to 350 nm were measured
using a modified Grimm SMPS aerosol spectrometer. High negative ion
concentration gradients are detected in the vicinity of the waterfalls,
whereas the increase of positive ions was only moderate. Ions in the nano
range were the most abundant at 2 nm, and at 120 nm in the sub-micrometer
range. |
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