Collecting Supercooled Cloud Droplets as a Function of Droplet Size

Supercooled cloud droplets were inertially impacted onto ``cloud-sieves'' at a mountaintop location. The large cross-sectional areas of the sieve meshes permitted grams of cloud water to be passively collected in minutes. Each sieve was constructed from specific diameter cylindrical strand...

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Bibliographic Details
Published in:Journal of atmospheric and oceanic technology 1992-08, Vol.9 (4), p.337-353
Main Authors: Hindman, Edward E., Carter, Elizabeth J., Borys, Randolph D., Mitchell, David L.
Format: Article
Language:English
Online Access:Get full text
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Summary:Supercooled cloud droplets were inertially impacted onto ``cloud-sieves'' at a mountaintop location. The large cross-sectional areas of the sieve meshes permitted grams of cloud water to be passively collected in minutes. Each sieve was constructed from specific diameter cylindrical strands and collected all cloud droplets larger than a critical size. Procedures are developed to produce liquid water content (LWC) and chemical composition values as a function of droplet-size interval. The sieve LWC measurements were compared with simultaneous LWC measurements obtained from a standard cloud droplet spectrometer. The sieve and spectrometer values were consistent for droplets between approximately 4 and 13 mu m in diameter. The sieves overestimated the water contents of larger and smaller droplets in low LWC clouds (
ISSN:0739-0572
1520-0426
DOI:10.1175/1520-0426(1992)009<0337:CSCDAA>2.0.CO;2