Effects of Lateral Entrainment Mixing With Entrained Aerosols on Cloud Microphysics

Aerosol effects on cloud dynamics , microphysics and precipitation : numerical simulations with WRF with spectral ( bin ) microphysics

Effects of cosmic ray decreases on cloud microphysics

This discussion paper is/has been under review for the journal Atmospheric Chemistry and Physics (ACP). Please refer to the corresponding final paper in ACP if available. Abstract Using cloud data from MODIS we investigate the response of cloud microphysics to sudden decreases in galactic cosmic radiation – Forbush decreases – and find responses in effective emissivity, cloud fraction, liquid w...

Black carbon radiative heating effects on cloud microphysics and implications for the aerosol indirect effect: 2. Cloud microphysics

This work examines the effect of black carbon (BC) radiative heating on cloud droplet formation. Changes in cloud droplet concentration and cloud albedo due to the presence of black carbon are computed for different cases of aerosol size distributions, meteorological conditions, BC mixing state, and aerosol composition. We examine the effect of three new mechanisms (that result from BC heating)...

Parameterization of the Bulk Effects of Lateral and Cloud-Top Entrainment in Transient Shallow Cumulus Clouds

A parameterization of shallow cumulus clouds for use in atmospheric general circulation models is proposed. The parameterization uses a bulk representation of an ensemble of transient clouds. Entrainment of environmental air occurs at the ascending top of the cumulus cloud and also at the lateral boundaries of the region below the top of the cloud. Complete detrainment of the air in the cloud o...

Effects of aerosols on precipitation and cloud dimension

The effects of aerosols on precipitation and dimensions of subtropical clouds; a sensitivity study using a numerical cloud model A. Teller and Z. Levin Department of Geophysics and Planetary Sciences, Tel-Aviv University, Tel-Aviv, Israel Received: 11 July 2005 – Accepted: 29 July 2005 – Published: 22 August 2005 Correspondence to: Z. Levin ([email protected]) © 2005 Author(s). This work is li...