2.20 Background Ozone in Regional-Scale Modelling over North America

摘要

This study estimates background ozone concentrations over Eastern North America for the year 2005 based on analysis of CMAQ (the Community Multiscale Air Quality model) simulations with all anthropogenic emissions set to zero. Influences of inflow boundary conditions, land use characteristics, meteorological conditions, and dry deposition on the background ozone concentrations were analyzed. The spatial distributions and temporal peculiarities of ozone background concentrations were examined with statistical analysis applied and results presented.