Prognostic Equations for Cloud Fraction and Liquid Water, and Their...

Journal of the Atmospheric Sciences;  February 1, 2004 ;     700+ words ......equations for cloud fraction and specific liquid water content. Such...equations for cloud fraction and liquid water contain unclosed...denotes specific liquid water content, and...1 denotes cloud fraction; q^sub l^ and...

Cloud fraction and relative humidity in a prognostic cloud fraction scheme

Monthly Weather Review;  July 1, 2001 ;     700+ words ......condensation, and dissipation of cloud fraction by turbulent erosion. The new scheme...We mention that other prognostic cloud fraction schemes are being developed. For...layer model coupled to a prognostic cloud fraction scheme and Randall (1996) derived...convection scheme with a ...

The Liquid Water Oscillation in Modeling Boundary Layer Cumuli with...

Journal of the Atmospheric Sciences;  July 1, 2004 ;     700+ words ......vertical profiles of cloud fraction, mean liquid water mixing ratio, and...vertical distributions of cloud fraction and liquid water mixing ratio. A better...unrealistic oscillation in cloud fraction and liquid water flux was discussed...

Comparison of ECMWF winter-season cloud fraction with radar-derived values

Journal of Applied Meteorology;  March 1, 2001 ;     700+ words ......In this paper, a technique to derive cloud fraction as a function of height using ground-bas...a direct comparison of 3 months of cloud fraction observed at Chilbolton, England, with...average, the model tends to underpredict cloud fraction below 7 km and considerably overpredict...

A PDF-based model for boundary layer clouds. Part II: Model results

Journal of the Atmospheric Sciences;  December 15, 2002 ;     700+ words ......Typically, cloud fraction values tended...underestimated. Liquid water content was...velocity (w), the liquid water potential...these moments. Cloud fraction, liquid water...large range of cloud fraction and liquid water values. ...

Small-scale mesoscale variability of scalars in cloudy boundary layers:...

Journal of the Atmospheric Sciences;  July 15, 2001 ;     700+ words ......grid box average cloud fraction, liquid water content, temperature...grid box average liquid water content, temperature...radiative transfer, cloud fraction parameterizations...model diagnoses liquid water content from...overpredicts average liquid ...

A Fast Cloud Overlap Parameterization for Microwave Radiance Assimilation

Journal of the Atmospheric Sciences;  November 1, 2007 ;     700+ words ......The assimilation of cloud- and rain-affected...those with an overall cloud fraction of unity; these errors...model. Therefore, cloud liquid water and ice contents as...than the profile of cloud fraction. The NWP model cloud fraction is usually ...

Large-Eddy Simulations of Trade Wind Cumuli: Investigation of Aerosol...

Journal of the Atmospheric Sciences;  June 1, 2006 ;     700+ words ......with size-resolved cloud microphysics. It is...the cloud-averaged liquid water path (LWP). However, for the case under study, cloud fraction, cloud size, cloud...1989) suggested that cloud liquid water content (LWC), fractional...responses of cloud ...

Examining horizontal variability in ground-based microwave retrievals of...

Journal of Atmospheric and Oceanic Technology;  January 1, 1999 ;     700+ words ......with variability in cloud liquid water path (LWP) is important...results. 1. Introduction Liquid water path (LWP) is the key...scales that characterize liquid water path. Including some...parameterization of cloud fraction for boundary layer clouds in which ...

The Influence of Cloud and Surface Properties on the Arctic Ocean...

Journal of Climate;  March 1, 2008 ;     700+ words ......concentrations, surface albedo, cloud fraction, and cloud ice and liquid water paths on the surface shortwave...compensated by increased cloud SW forcing. In this model, an initially high cloud liquid water content reduces the effect of the increase in ...

Radiative transfer through broken clouds: Observations and model...

Journal of Climate;  October 15, 2002 ;     700+ words ......is 1100 m. Low cloud-fraction conditions are...observed cloud liquid water paths between...cloud-top height, cloud fraction, liquid water path, cloud horizontal...cloud-top height, cloud fraction, liquid water path, cloud ...

Size distributions and dynamical properties of shallow cumulus clouds from...

Journal of the Atmospheric Sciences;  August 15, 2003 ;     700+ words ......Study (SCMS) are analyzed. Size distributions of cloud fraction, mass flux, and in-cloud buoyancy flux are derived. These distributions...example, which size has the largest effect on cloud fraction or vertical transport. The analysis of four flights...clouds (horizontal dimension of about ...

NASA's Odyssey Supports Viking Experimenter's Early Claim To Liquid Water...

PR Newswire;  March 1, 2002 ;     700+ words ......in 1976 (1-4), he has contended that liquid water exists on the surface of Mars. A few...develop a theoretical model showing how liquid water occurs on Mars. The validity of the...experimental proof, the presence of liquid water was so key to the controversial issue...

Spatial Variability of Liquid Water Path in Marine Low Cloud: The...

Journal of Climate;  May 1, 2006 ;     700+ words ...ABSTRACT Liquid water path (LWP) mesoscale spatial variability in marine low cloud over the eastern subtropical...analysis. It is found that cloud fraction is strongly linked with...understand and predict low cloud coverage and variability...between the CF and internal cloud ...

THIN LIQUID WATER CLOUDS

Bulletin of the American Meteorological Society;  February 1, 2007 ;     700+ words ......balance contain small amounts of liquid water, yet despite many improvements...differences in retrievals of their liquid water amount and particle size still...radiative fields in GCMs. Low-level liquid water clouds are arguably the simplest...