The BREEZE Remote Modeling System is designed to deliver significant performance improvements
on large AERMOD model runs.
Improvements will be observed
for scenarios that containing any source type or model option.
Estimating how long an AERMOD model run is not an exact science. There are a number of variables that will affect the performance, including, but not limited
to:
- the Control Options selected - certain Control Options
will enable additional routines, thus additional computations.
- the meteorological data - different meteorological
conditions require different algorithms (e.g., convective boundary layer vs. stable
boundary layer).
- terrain processing - computing dispersion in complex
terrain requires addition processing. AERMOD will computer a critical dividing
streamline height for each hour for each receptor. The combination of the
receptor and meteorological conditions for a particular hour will determine which
algorithms will be used.
- building downwash - when building downwash is considered,
additional computational routines are triggered.
- use of external files - a lot of reading and writing of files will reduce performance. The BRMS does not permit the creating of
ASCII POST files due to their potential large size. Binary files can be created.