Variability in concentrations of cloud condensation nuclei in the marine cloud–topped boundary layer

Abstract

In previous work, we suggested there may be two equilibrium states for the well‐mixed marine cloud–topped boundary layer, each characterized by a limited range of values of the condensation nucleus concentration, N. We now extend that study, introducing a new parameterization for drizzle as a function of N and r, the mean cloud droplet radius. This parameterization leads to functional relationships between the particle source rate and the cloud albedo at equilibrium. Copyright © 1993, Wiley Blackwell. All rights reserved