Measurements of the size dependence of cloud droplet deposition at a hill site

Gallagher, MW; Choularton, TW; Morse, AP; Fowler, D

HERO ID

46631

Reference Type

Journal Article

Year

1988

Language

English

HERO ID 46631
In Press No
Year 1988
Title Measurements of the size dependence of cloud droplet deposition at a hill site
Authors Gallagher, MW; Choularton, TW; Morse, AP; Fowler, D
Journal Quarterly Journal of the Royal Meteorological Society
Volume 114
Issue 483
Page Numbers 1291-1303
Abstract Measurements have been made of the deposition of cloud droplets and dissolved chemical species to moorland vegetation. Measurements of liquid water fluxes have been made by the gradient technique using Knollenberg FSS probes and by a weighing lysimeter. Deposition velocities for cloud liquid water in the range 0.1 to 0.24gm-3 at a height of l.0 in were close to those for momentum. The FSS probes enabled the determination of deposition velocities as a function of droplet size. It was found that the deposition velocity increased with droplet radius from 2.5 Ám to 6.5 Ám radius. Between 6.5 and 12.5 Ám radius, deposition velocities exceeded those for momentum, but decreased sharply between 12.5 and 15.5 Ám. In periods of thin cloud (<0.1 gm-3), evaporation from the surface occurred despite continued deposition.
Doi 10.1002/qj.49711448307
Wosid WOS:A1988Q376900006
Is Certified Translation No
Dupe Override No
Comments ECRIB.Q. J. R. Meteorol. Soc. 114: 1291-1303.
Is Public Yes
Language Text English