This paper summarizes an evaluation of model
simulations with a regional scale atmospheric climate-chemistry/
aerosol model called REMOTE, which has been
extended by a microphysical aerosol module. Model results
over Europe are presented and compared with available measurements
in surface air focusing on the European distribution
and variability of primary and secondary aerosols. Additionally,
model results obtained with detailed aerosol microphysics
are compared to those based on an aerosol bulk
mass approach revealing the impact of dry deposition fluxes
on atmospheric burden concentration. An improved determination
of elevated ozone and sulfate concentrations could be
achieved by considering a diurnal cycle in the anthropogenic
emission fluxes. Deviation between modelled and measured
organic carbon concentrations can be mainly explained by
missing formation of secondary organic aerosols and deficiencies
in emission data. Changing residential heating practices
in Europe, where the use of wood is no longer restricted
to rural areas, need to be considered in emission inventories
as well as vegetation fire emissions which present a dominant
source of organic carbon.JRC.DDG.H.2-Climate chang
