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On the droplet distribution near the base of cumulus clouds

✍ Scribed by M. J. Manton; J. Warner

Publisher
John Wiley and Sons
Year
1982
Tongue
English
Weight
770 KB
Volume
108
Category
Article
ISSN
0035-9009

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✦ Synopsis

Abstract

Lateral entrainment in cumulus clouds is usually assumed to occur continuously as a cloud parcel rises. Computations of the droplet distribution using that assumption are compared with those in which entrainment occurs intermittently, and little difference is found. The width of the droplet distribution is shown to increase as the relative humidity of the entrained air is reduced. The inclusion of the effects of molecular accommodation at the surface of droplets also leads to substantial broadening of the droplet distribution.

πŸ“œ SIMILAR VOLUMES

On the broadening of a droplet distribut
On the broadening of a droplet distribution by turbulence near cloud base
✍ M. J. Manton πŸ“‚ Article πŸ“… 1979 πŸ› John Wiley and Sons 🌐 English βš– 1021 KB

## Abstract The effect of turbulence on the development of the distribution of droplets growing by condensation in a cumulus cloud is investigated. Both small scale and large scale turbulence are shown to produce some broadening of the distribution. Turbulence with high vertical coherence is found

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## Abstract The paper describes a relatively simple model of a non‐precipitating cumulus cloud that grows by the ascent of successive spherical thermals through the residues of their predecessors, mixing with the surroundings being determined by the relative velocity and the radius of the thermal.

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The evolution of droplet spectra by condensation and coalescence in cumulus clouds
✍ P. R. Jonas; B. J. Mason πŸ“‚ Article πŸ“… 1974 πŸ› John Wiley and Sons 🌐 English βš– 603 KB

## Abstract The paper describes calculations of the development of droplet‐size spectra in cumulus clouds under the combined effects of condensation and coalescence. It is demonstrated that the concentration of condensation nuclei is a more important factor in controlling the onset of precipitation