Field and Laboratory Comparisons of Two Cloud Condensation Nuclei Counters

An extensive series of experiments was carried out to compare the performance of two cloud nucleus counters, a Static Diffusion Chamber and a Thermal Diffusion Tube, operating under quite different principles, in a wide range of field conditions and with a number of laboratory aerosols. The operatin...

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Bibliographic Details
Published in:Journal of atmospheric and oceanic technology 1989-12, Vol.6 (6), p.1066-1078
Main Authors: Bigg, E. K., Kaye, A. D., Megaw, W. J.
Format: Article
Language:English
Online Access:Get full text
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Summary:An extensive series of experiments was carried out to compare the performance of two cloud nucleus counters, a Static Diffusion Chamber and a Thermal Diffusion Tube, operating under quite different principles, in a wide range of field conditions and with a number of laboratory aerosols. The operating ranges of the instruments only overlap slightly; nevertheless the supersaturation vs cloud condensation nuclei (CCN) concentration spectra obtained showed rather good agreement at the range boundaries and suggest that use of the two instruments would provide a viable method of obtaining CCN concentrations in the supersaturation range 0.04 to 1.25 percent.
ISSN:0739-0572
1520-0426
DOI:10.1175/1520-0426(1989)006<1066:FALCOT>2.0.CO;2