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

M. B. Baker

doi:10.3402/tellusb.v45i5.15742

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

Tellus B: Chemical and Physical Meteorology

Volume 45 (1993): Issue 5

By: M. B. Baker

Open Access

|Jan 1993

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.

References

Albrecht , B . 1989 . Aerosols, cloud microphysics and fractional cloudiness . Science 245 , 1227 – 1230 .
Search in Google Scholar Back to article
Baker , M. B. and Charlson , R. J . 1990 . Bistability of CCN concentrations and thermodynamics in the cloudtopped boundary layer . Nature 345 , 142 – 144 .
Search in Google Scholar Back to article
Betts , A . 1983 . Thermodynamics of mixed stratocumulus layers: saturation point budgets . J. Atmos. Sci . 42 , 2655 – 2670 .
Search in Google Scholar Back to article
Betts , A . 1985 . Mixing line analysis of clouds and cloudy boundary layers . J. Atmos. Sci . 44 , 2751 – 2763 .
Search in Google Scholar Back to article
Bower , K. , Choularton , T. , Baker , M. , Latham , J. , Blyth , A. , Nelson , J. and Jensen , J . 1992. Microphysics of warm clouds; measurements and discussion. Proceedings, 11th International Conference on Clouds and Precipitation , Montreal , p. 133 .
Search in Google Scholar Back to article
Bretherton , C . 1990. Lagrangian development of a cloud-topped boundary layer in a turbulence closure model. Proceedings, Conference on Cloud Physics of the AMS , San Francisco , p. 48 .
Search in Google Scholar Back to article
Chandrasekhar , S . 1943. Stochastic problems in physics and astronomy. Revs of Modern Physics 15, #1,1-87, eq. (170).
Search in Google Scholar Back to article
Charlson , R. , Schwartz , S. , Hales , J. , Cess , R. , Coakley, J. Jr. , Hansen , J. and Hoffman , D . ( 1992 ). Climate forcing by anthropogenic aerosols . Science 255 , 423 – 430 .
Search in Google Scholar Back to article
Chen , C. and Cotton , W . 1987 . The physics of the marine stratocumulus capped mixed layer. J. Atmos. Sc i . 44 , 2951 – 2977 .
Search in Google Scholar Back to article
Clarke , A . 1992 . Atmospheric nuclei in the remote free troposphere . J. Atmos. Chem . 14 , 479 – 488 .
Search in Google Scholar Back to article
Fuchs , N . 1964 . The mechanics of aerosols , Pergamon Press , Oxford , 408 .
Search in Google Scholar Back to article
Hegg , D . 1991 . Particle production in clouds . Geophys. Res. Letts . 18 , 995 – 998 .
Search in Google Scholar Back to article
Hegg , D. , Radke , L. and Hobbs , P . 1990 . Particle production associated with marine clouds . J. Geophys. Res. 95, 119 , 13 , 917-13 , 926 .
Search in Google Scholar Back to article
Johnson , D . 1982 . The role of giant and ultragiant aerosol particles in warm rain initiation. J. Atmos. Sc i . 39 , 448 – 460 .
Search in Google Scholar Back to article
Kreidenweis , S. M. and Seinfeld , J. H . 1988 . Nucleation of sulfuric acid-water and methane sulfonic acid-water particles: Implications for the atmospheric chemistry of organosulfuric species . Atmos. Environ . 22 , 283 – 296 .
Search in Google Scholar Back to article
Lilly , D . 1968 . Models of cloudtopped mixed layers under a strong inversion . Q. J. Roy. Meteor. Soc . 94 , 292 – 309 .
Search in Google Scholar Back to article
Liou , K.-N. and Ou , S.-C . 1989 . The role of cloud microphysical processes in climate: An assessment from a one-dimensional perspective. J . Geophys. Res . 94 , D6 , 8599 – 8608 .
Search in Google Scholar Back to article
Nicholls , S . 1987 . A model of drizzle growth in warm, turbulent stratiform clouds . Q. J. Roy. Meteor. Soc . 113 , 1141 – 1170 .
Search in Google Scholar Back to article
Papoulis , A . 1965. Probability, Random Variables, and Stochastic Processes. 584 pp. McGraw-Hill, pub-lishers. Chapter 14.
Search in Google Scholar Back to article
Slingo , A . 1989 . A GCM parameterization for the short-wave radiative properties of water clouds . J. Atmos. Sci . 46 , 1419 – 1427 .
Search in Google Scholar Back to article
Slingo , A . 1990 . Sensitivity of the earth's radiation budget to changes in low clouds . Nature 343 , 49 – 51 .
Search in Google Scholar Back to article
Stephens , G . 1978 . Radiation profiles in extended water clouds (II). Parameterization schemes . J. Atmos. Sci . 35 , 2133 – 2141 .
Search in Google Scholar Back to article
Stull , R . 1988. An introduction to boundary layer meteorology. Kluwer Academic Publishers, 666.
Search in Google Scholar Back to article
Tennekes , H. and Lubley , J . 1972. A first course in turbulence. 300 pp. The MIT Press. Chapter 8.
Search in Google Scholar Back to article
Turton , J. and Nicholls , S . 1987 . A study of the diurnal variation of stratocumulus using a multiple mixed-layer model . Q. J. Roy. Meteor. Soc . 113 , 969 – 1011 .
Search in Google Scholar Back to article
Twomey , S. , Pipegrass , M. and Wolfe , T. L . 1984 . The impact of pollution on global cloud albedo . Tellus 36B , 356 – 366 .
Search in Google Scholar Back to article
Wakefield , J. and Schubert , W . 1981 . Mixed-layer simulation of eastern north Pacific stratocumulus . Mon. Wea. Rev . 109 , 1952 – 1968 .
Search in Google Scholar Back to article