论文信息 - Cloud Fraction and Relative Humidity in a Prognostic Cloud Fraction Scheme

Cloud Fraction and Relative Humidity in a Prognostic Cloud Fraction Scheme

The relationship between relative humidity and low cloud cover produced by a prognostic cloud fraction formulation is compared with observations. From a steady-state version of the prognostic cloud fraction equation, a diagnostic relation for cloud fraction can be derived for subtropical boundary layer clouds. The results are quite realistic when compared with observations illustrating the relevance of the coupling with parameterized convection.

Joao Teixeira

[1] P. Duynkerke,et al. Comparison of the ECMWF Reanalysis with FIRE I Observations: Diurnal Variation of Marine Stratocumulus , 2001 .

[2] Simulation of fog with the ECMWF prognostic cloud scheme , 1999 .

[3] C. Bretherton,et al. A GCSS Boundary-Layer Cloud Model Intercomparison Study Of The First Astex Lagrangian Experiment , 1999 .

[4] C. Walcek. Cloud Cover and Its Relationship to Relative Humidity during a Springtime Midlatitude Cyclone , 1994 .

[5] Shouping Wang. Defining Marine Boundary Layer Clouds with a Prognostic Scheme , 1996 .

[6] Kazuo Saito,et al. A Statistical Relation between Relative Humidity and the GMS Observed Cloud Amount , 1988 .

[7] Christian Jakob,et al. Cloud Cover in the ECMWF Reanalysis , 1999 .

[8] Hilding Sundqvist,et al. Parameterization of Condensation and Associated Clouds in Models for Weather Prediction and General Circulation Simulation , 1988 .

[9] João Paulo Ramos Teixeira,et al. Intercomparison of Three- and one-Dimensional Model Simulations and Aircraft Observations of Stratocumulus , 1999 .

[10] Bruce A. Albrecht,et al. Parameterization of Trade-Cumulus Cloud Amounts , 1981 .

[11] M. Tiedtke,et al. Representation of Clouds in Large-Scale Models , 1993 .