We conducted a regional-scale simulation over Northeast Asia for the year 2006 using an aerosol chemical transport model, with time-varying lateral and upper boundary concentrations of gaseous species predicted by a global stratospheric and tropospheric chemistry-climate model. The present one-way nested global-through-regional-scale model is named the Meteorological Research Institute-Passive-tracers Model system for atmospheric Chemistry (MRI-PM/c). We evaluated the model's performance with respect to the major anthropogenic and natural inorganic components, SO42-, NH4+, NO3-, Na+ and Ca2+ in the air, rain and snow measured at the Acid Deposition Monitoring Network in East Asia (EANET) stations. Statistical analysis showed that approximately 40-50 % and 70-80 % of simulated concentration and wet deposition of SO42-, NH4+, NO3-and Ca2+ are within factors of 2 and 5 of the observations, respectively. The prediction of the sea-salt originated component Na+ was not successful at near-coastal stations (where the distance from the coast ranged from 150 to 700 m), because the model grid resolution (Δx = 60 km) is too coarse to resolve it. The simulated Na+ in precipitation was significantly underestimated by up to a factor of 30. © Author(s) 2012.
CITATION STYLE
Kajino, M., Deushi, M., Maki, T., Oshima, N., Inomata, Y., Sato, K., … Ueda, H. (2012). Modeling wet deposition and concentration of inorganics over Northeast Asia with MRI-PM/c. Geoscientific Model Development, 5(6), 1363–1375. https://doi.org/10.5194/gmd-5-1363-2012
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