 |
| Titel |
Influences of the variation in inflow to East Asia on surface ozone over Japan during 1996–2005 |
| VerfasserIn |
S. Chatani, K. Sudo |
| Medientyp |
Artikel
|
| Sprache |
Englisch
|
| ISSN |
1680-7316
|
| Digitales Dokument |
URL |
| Erschienen |
In: Atmospheric Chemistry and Physics ; 11, no. 16 ; Nr. 11, no. 16 (2011-08-29), S.8745-8758 |
| Datensatznummer |
250010033
|
| Publikation (Nr.) |
 copernicus.org/acp-11-8745-2011.pdf |
|
|
|
|
|
| Zusammenfassung |
| Air quality simulations in which the global chemical transport model CHASER
and the regional chemical transport model WRF/chem are coupled have been
developed to consider the dynamic transport of chemical species across the
boundaries of the domain of the regional chemical transport model. The
simulation captures the overall seasonal variations of surface ozone, but
overestimates its concentration over Japanese populated areas by
approximately 20 ppb from summer to early winter. It is deduced that ozone
formation around Northeast China and Japan in summer is overestimated in the
simulation. On the other hand, the simulation well reproduces the
interannual variability and the long-term trend of observed surface ozone
over Japan. Sensitivity experiments have been performed to investigate the
influence of the variation in inflow to East Asia on the interannual
variability and the long-term trend of surface ozone over Japan during
1996–2005. The inflow defined in this paper includes the recirculation of
species with sources within the East Asian region as well as the transport
of species with sources out of the East Asian region. Results of sensitivity
experiments suggest that inflow to East Asia accounts for approximately
30 % of the increasing trend of surface ozone, whereas it has much less
influence on the interannual variability of observed surface ozone compared
to meteorological processes within East Asia. |
| |
|
| Teil von |
|
|
|
|
|
|
|
|