The purpose of this project is to develop a state-of-the-art chemical transport model through the integration of a highly explicit representation of atmospheric chemistry and next generation of meteorological model. Critical to the development of this next generation regional chemical transport model will be the meteorological data, detailed emission data and selected chemical mechanism scheme. 

Department of Water and Environmental Regulation (DWER) has conducted numerous sensitivity analyses of Weather Research Forecast (WRF) model in the region. The recent update of Perth metropolitan emission inventory offers a great opportunity to incorporate a state-of-the art meteorological model with detailed emissions in the region. 

This project involves the development of the next-generation regional chemical transport model that extends the highly explicit representation of the atmospheric chemistry beyond what is currently available. The construction of Common Representative Intermediates mechanism (CRImech) will involve an updated Master Chemical Mechanism (MCM) database and explicit atmospheric degradation scheme of new Volatile Organic Compounds (VOC) species, which are not included in the current version of CRImech. The modelled results will be evaluated and compared to long term observational data in the region.