However, global simulations are usually too coarse to represent regional-scale atmospheric variability.
Specifically, we included rural populations, suggesting higher estimates; however, the coarse resolution of the global atmospheric model may underestimate urban PM2.5 exposures.
A nested approach is used whereby EMEP simulations of atmospheric composition across a coarser European domain are used to drive fine-scale EMEP-WRF simulations of air quality at 5 km horizontal resolution across the UK.
Central to our approach is the design of an apparatus that measures the forward and backward scattering hemispheres (scattering patterns) of individual atmospheric aerosol particles in the coarse mode range.
Points falling on imagery with medium to coarse resolution (e.g., 30-m resolution) or with atmospheric obstructions (clouds) were considered non-interpretable and not included in the final analysis.
Compared with a coarse resolution model, forced with the same climatic monthly averaged atmospheric data, the high resolution model exhibits stronger variability, including frontal structures and coastal upwellings induced by baroclinic instabilities, in particular along the Turkish coast.
For example, here in this study the chloride depletion from coarse mode sea salt aerosol was found to govern the dry atmospheric removal of nitrate from the atmosphere.
By running the hydrological model at the highest resolution with uniform atmospheric input we examined the effect of using coarser resolution climate forcing, for example from a RCM.
Tephra2 simplifies atmospheric turbulence by using two different diffusion laws, one for coarse and another for fine particles (Bonadonna 2006; Bonadonna et al. 2005; Connor and Connor 2006; Volentik et al. 2009).
CMAQ model performance of SOA formation has improved substantially with each version of the model, but likely doesn't capture every process, given that SOA formation depends on varying atmospheric physical and chemical conditions which are simulated at coarser scales in the CMAQ model relative to the (unknown) scales at which they occur in the environment.
