The Regional
Modeling System for Aerosols and
Deposition (REMSAD) was
developed by ICF International/Systems
Applications International to support
a better understanding of the
distributions, sources, and removal
processes relevant to regional haze,
particulate matter and other airborne
pollutants, including soluble acidic
components and toxics. REMSAD includes
the streamlined micro-CB gas-phase
chemical mechanism and an efficient
transport algorithm that allow
continental scale simulations of full
calendar years. REMSAD provides
spatially and temporally resolved air concentrations and
(wet and dry) deposition values. Recent
improvements to the modeling system include
expanded treatment of mercury
chemistry, the addition of a
detailed secondary organic aerosol (SOA)
treatment and improved performance
under stagnant meteorological
conditions.
