EARTH SYSTEM PHYSICS SEMINAR

[pandora]

EARTH SYSTEM PHYSICS SEMINAR

FRIDAY 18 September
Oppenheimer Room, LB 2nd floor, 11:00 hrs

Elisabetta VIGNATI
Joint Research Centre
Institute for Environment and Sustainability
Ispra, Italy

"M7: A PSEUDO-MODAL MODEL FOR AEROSOL MICROPHYSICS

The aerosol model M7 has been designed to be coupled to general circulation models and chemistry transport models. M7 describes dynamically the evolution of the size distributions of most of the principal components of the global aerosol burden: sulfate, black and primary organic carbon, sea salt and dust dividing the aerosol population into two types of particles: mixed, or water-soluble particles, and insoluble particles. The particles are represented by seven classes, using a ''pseudo-modal'' approach. The aerosol dynamic processes in the model include nucleation, coagulation, and condensation of sulfuric acid. Mixed particles are formed from insoluble particles by coagulation and condensation.
M7 is the aerosol microphysics module in the GCMs ECHAM5-HAM and ECHAM5-MESSy, the Regional Climate model REMOTE and the Chemistry-Transport model TM5.
Aerosol description and dynamics processes included in M7 will be presented, as well as applications of TM5-M7.


Everyone is welcome.