Decadal regional air quality simulations over Europe in present climate: near surface ozone sensitivity to external meteorological forcing
2010
Abstract
Regional climate-air quality decadal simulations over Europe were carried out with the RegCM3/CAMx modeling system for the time slice 1991–2000, constrained by the ERA40 reanalysis dataset and by the global circulation model ECHAM5. The different meteorological forcing impacts on the atmospheric circulation, which in turn affects cloudiness and solar radiation, temperature, wind patterns and the meteorology depended biogenic emissions.
This resulted in changes of near surface ozone ranging ± 4 ppb. These findings suggest that, when it comes to regional climate-air quality simulations, the selection of external meteorological forcing can be as important as the selection of adequate chemical lateral boundary conditions.