• Corpus ID: 201686126

TOWARDS A BETTER REPRESENTATION OF HIGH DENSITY ICE PARTICLES IN A STATE-OFTHE-ART TWO-MOMENT BULK MICROPHYSICAL SCHEME

@inproceedings{Blahak2008TOWARDSAB,
  title={TOWARDS A BETTER REPRESENTATION OF HIGH DENSITY ICE PARTICLES IN A STATE-OFTHE-ART TWO-MOMENT BULK MICROPHYSICAL SCHEME},
  author={Ulrich Blahak},
  year={2008}
}
  • U. Blahak
  • Published 2008
  • Environmental Science, Physics
One of the upcoming topics in cloud microphysics is to investigate the influence of increased air pollution by anthropogenic aerosols on the evolution of convective clouds and formation of hail in midlatitude storms. In this context, it is of importance that the cloud microphysical scheme is able to predict the evolution of hail with a certain degree of confidence. Hail particles may influence the microphysicaldynamical feedback and the simulated precipitation efficiency due to their ability… 

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References

SHOWING 1-10 OF 12 REFERENCES

A two-moment cloud microphysics parameterization for mixed-phase clouds. Part 1: Model description

SummaryA two-moment microphysical parameterization for mixed-phase clouds was developed to improve the explicit representation of clouds and precipitation in mesoscale atmospheric models. The scheme

A two-moment cloud microphysics scheme with two process-separated modes of graupel

A reliable description of cloud microphysical processes in cloud resolving regional atmospheric models is difficult. On the one hand, one has to consider the various types of hydrometeors and on the

A comparison of spectral bin and two-moment bulk mixed-phase cloud microphysics

Microphysical Processes in Clouds

This text provides a solid foundation in the basic microphysical processes that govern the formation and growth of water and ice particles, introducing the student to the synergistic nature of these

Dependence of droplet concentration on aerosol conditions in different cloud types: Application to droplet concentration parameterization of aerosol conditions

[1] The dependence of droplet concentration on the vertical velocity at the cloud base of stratiform and cumulus clouds and aerosol size distribution is calculated. A simple parameterization of

The Influence of Storm Flow Structure on Hail Growth.

Abstract Multiple–Doppler data and a numerical hail model are used to identify factors in supercell storms that am important to hail growth. Most hailstone mass is acquired in one pass across the

Microphysics of Clouds and Precipitation

Note: Bibliogr. : p. 874-934. Index Reference Record created on 2004-09-07, modified on 2016-08-08

A New Cloud Physics Parameterization in a Large-Eddy Simulation Model of Marine Stratocumulus

Abstract A new bulk microphysical parameterization for large-eddy simulation (LES) models of the stratocumulus-topped boundary layer has been developed using an explicit (drop spectrum resolving)

Calculations of Hailstone Growth and Trajectories in a Simple Cloud Model

Abstract A hailstone model is developed which simulates both wet and dry hailstone growth and partial or complete melting as the hailstone falls to the ground. The simulation is obtained by a

RADAR_MIE_LM and RADAR_MIELIB — calculation of radar reflectivity from model output

  • Internal report, Inst. f. Meteor. and Climate research,
  • 2007