Long-Term Simulations of Surface Ozone in East Asia During 1980 – 2020 with CMAQ and REAS Inventory

摘要: Long-term simulations of surface ozone (O3) over East Asia during 1980–2020 were conducted using the regional scale chemical transport model (CMAQ) and newly developed year-by-year emission inventory in (REAS). The CMAQ with REAS could reproduce spatial seasonal variations observed O3 concentrations 2000 2001. historical simulation from 1980 to 2003 demonstrates that an annually-averaged concentration Central China (CEC) Japan increases about 12 ppbv (1% year−1) 5 (0.4% a quarter century, respectively. This simulated trend generally agrees measured at monitoring stations is correlated Chinese NOx NMVOC emissions. future emissions up 2020 projected based on three scenarios (PSC, REF, PFC). In 2020, each scenario are expected increase by −1% (PSC), +40% (REF), +128% (PFC) 2000, worst shows Asian almost double between 2020. We find will significantly near due