The input values in IMMISnet consist of the emission data for
the sources under consideration, broken down into a number of polluter
groups, and a climatological frequency distribution or a time series of
meteorological parameters.
The input values in IMMISnet consist of the emission data for the
sources under consideration, broken down into a number of polluter groups,
and a climatological frequency distribution or a time series of
meteorological parameters. The model operates chronologically, i.e. the
concentration contribution of all the sources considered are calculated for
every hour of a year. The representative meteorological conditions for any
particular hour are selected randomly from the climatological distribution
of meteorological cases in a meteorological frequency distribution. The
model determines hourly emissions from the annual emissions, using
polluter-group-specific monthly, weekly and daily cycles. Up to 1000
arbitrary cycles can be individually linked to emission sources. |