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| Titel |
The web system for operative description of air quality in the city |
| VerfasserIn |
A. A. Barth, A. V. Starchenko, A. Z. Fazliev |
| Konferenz |
EGU General Assembly 2009
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 11 (2009) |
| Datensatznummer |
250025957
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| Zusammenfassung |
| Development and implementation of information-computational system (ICS) is
described. The system is oriented on the collective usage of the calculation’s facilities in
order to determine the air quality on the basis of photochemical model. The ICS
has been implemented on the basis of the middleware of ATMOS web-portal [1,
2].
The data and calculation layer of this ICS includes:
Mathematical model of pollution transport based on transport differential
equations. The model describes propagation, scattering and chemical
transformation of the pollutants in the atmosphere [3]. The model may use
averaged data value for city or forecast results obtained with help of the Chaser
model.[4]
Atmospheric boundary layer model (ABLM) [3] is used for operative numerical
prediction of the meteorological parameters. These are such parameters as
speed and direction of the wind, humidity and temperature of the air, which
are necessary for the transport impurity model to operate. The model may
use data assimilation of meteorological measurements data (including land
based observations and the results of remote sensing of vertical structure of
the atmosphere) or the weather forecast results obtained with help of the
Semi-Lagrange model [5].
Applications for manipulation of data:
An application for downloading parameters of atmospheric surface layer
and remote sensing of vertical structure of the atmosphere from the web
sites (http://meteo.infospace.ru and http://weather.uwyo.edu);
An application for uploading these data into the ICS database;
An application for transformation of the uploaded data into the internal data
format of the system.
At present this ICS is a part of “Climate” web site located in ATMOS portal [5]. The database is
based on the data schemes providing the calculation in ICS workflow. The applications
manipulated with the data are working in automatic regime.
The workflow oriented on computation of physical parameters contains:
The application for the calculation of geostrophic wind components on the base
of Eckman equations;
The applications for solution of the equations derived from ABL and transport
of impurity models.
The application for representation of calculation results in tabular and graphical
forms.
“Cyberia” cluster [6] located in Tomsk State University is used for computation of the impurity
transport equations.
References:
Gordov E.P., V. N. Lykosov, and A. Z. Fazliev, Web portal on environmental
sciences “ATMOS”// Advances in Geoscience, 2006, v. 8, p. 33-38.
ATMOS web-portal
http://atmos.iao.ru/middleware/
Belikov D.A., Starchenko A.V. Numerical investigation of secondary air
pollutions formation near industrial center // Computational technologies. 2005.
V. 10. Special issue. Proceedings of the International Conference and the
School of Young Scientists “Computational and informational technologies for
environmental sciences” (CITES 2005). Tomsk, 13-23 March 2005. Part 2. P.
99-105
Sudo, K., Takahashi M., Kurokawa J., Akimoto H. CHASER: A global
chemical model of the troposphere. Model description, J. Geophys. Res., 2002,
Vol.107(D17), P. 4339.
Tolstykh M.A., Fadeev R.Y. Semi-Lagrangian variable-resolution weather
prediction model and its further development // Computational technologies.
2006. V. 11. Special issue. P. 176-184
ATMOS web-portal
http://climate.atmos.math.tsu.ru/
Tomsk state university, Interregional computational center
http://skif.tsu.ru |
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