Abstract
A three dimensional hydrostatic model named OASIS (Osaka University Atmospheric Simulation System) had been developed during 10 years from 1990. OASIS included the urban canopy model to calculate the longwave radiation and shortwave radiation into urban configurations. OASIS reasonably represented the sea and land breezes and the urban heat island in the Osaka Bay areas. The emission inventories of isoprene and monoterpene emitted from broad leaf trees and coniferous trees in the Kinki District were evaluated based on growth chamber experiments. The increase of ozone concentration, which was caused by the increase of biogenic volatile organic compounds due to global warming, was simulated by using these inventories. The calculations due to the reduction of nitrogen oxides from vessels showed that the ozone concentration in NOX rich areas and the ozone concentration in hydrocarbon rich areas increased. From 2000, the community models have been generally used by many researchers accompanying the spread of internet and the progress of computer. Therefore WRF/CMAQ model was introduced in my laboratory in 2005. The calculations from this model showed that sulfate concentration in Japan was highly provided from transboundary pollution, that the generation of ozone was affected from biogenic and anthropogenic volatile organic compounds, and that the calculated organic aerosol concentration in PM2.5 was underestimated.
