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| Titel |
Modeling wet deposition and concentration of inorganics over Northeast Asia with MRI-PM/c |
| VerfasserIn |
M. Kajino, M. Deushi, T. Maki, N. Oshima, Y. Inomata, K. Sato, T. Ohizumi, H. Ueda |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1991-959X
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| Digitales Dokument |
URL |
| Erschienen |
In: Geoscientific Model Development ; 5, no. 6 ; Nr. 5, no. 6 (2012-11-06), S.1363-1375 |
| Datensatznummer |
250002946
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| Publikation (Nr.) |
 copernicus.org/gmd-5-1363-2012.pdf |
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| Zusammenfassung |
| 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. |
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