A cloud mass flux representation of the vertical turbulent fluxes provides a physical framework for understanding the effects of shallow convection in maintaining the vertical structure of the boundary layer. This approach is based on the assumption that coherent updrafts and downdraft structures are responsible for most of the turbulent transport. Previous evaluations of mass flux parameteriza...

Mixing of air containing small water droplets is investigated in the laboratory model to elucidate smallest scales of air entrainment and mixing in real clouds. Particle Image Velocimetry (PIV) is applied to evaluate turbulent characteristics of the flow field generated in the cloud chamber by buoyancy of the introduced mist. It permits to investigate dynamics of the process for scales from 0.0...

In this two-part paper, the impact of level-II Weather Surveillance Radar-1988 Doppler (WSR-88D) reflectivity and radial velocity data on the prediction of a cluster of tornadic thunderstorms in the Advanced Regional Prediction System (ARPS) model are studied. Radar reflectivity data are used primarily in a cloud analysis procedure that retrieves the amount of hydrometeors and adjusts in-cloud ...

[1] The mesoscale patterns of cloud/precipitation radar reflectivity from early CloudSat data are used to identify distinct tropical cloud regimes via a cluster analysis. Five basic cloud regimes are identified, and the geographical distribution of their occurrence frequency is quantified. Although the contemporary MODIS observations show some limitations to CloudSat observations, comparison wi...

an analytical study was performed to study effects of thermo-diffusion and chemical reactions on a three-dimensional mhd mixed convective flow of dissipative fluid along an infinite vertical porous plate with transverse sinusoidal suction velocity. the parabolic partial differential equations governing the fluid flow, heat transfer, and mass transfer were solved using perturbation technique and...

Based on the 8 years' (January/2008-December/2015) cloud phase information 40 from the GCM-Oriented Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observation (CALIPSO) Cloud Product (GOCCP), aerosol products from CALIPSO, and meteorological parameters from the ERA-Interim products, the present study investigates the effects of atmospheric dynamics on the supercooled liquid cloud fractio...

in this research between 3-dimensional and axisymmetric modeling for movement of nano-particles in passing through a aerodynamic lens, and also between these models and famous model of wang & liu was compared. for this purpose, output of nano-particles penetration, divergence angel, and nano-particle velocity with wang & liu model was compared. geometrical model used for aerodynamic lens compar...

Three-dimensional large-eddy simulations of a smoke cloud beneath a strong inversion are used to investigate how grid resolution aaects simulated entrainment rate. These simulations are generalizations of a 1995 GCSS (GEWEX Cloud System Studies) smoke cloud model intercomparison (MacVean et al. 1997). Radiative cooling at the top of the smoke cloud induces convection in the smoke cloud in a man...

4 An ensemble of simulations from different versions of the Community Atmosphere Model 5 (CAM) in the Community Earth System Model (CESM) is used to investigate the processes 6 responsible for the inter-model spread in climate sensitivity. In the CESM simulations, 7 the climate sensitivity spread is primarily explained by shortwave cloud feedbacks on the 8 equator-ward flank of the mid-latitude...