A Comparison of Tropospheric NO2 Columns Retrieved from Satellite Instruments with Model Values Simulated by the Mesoscale Model CAMx

Autoři: RNDr. Kryštof Eben, CSc.
RNDr. Jaroslav Resler, Ph.D.
Pavel Juruš
Michal Belda
Rok vydání: 2009
Typ publikace: Konferenční příspěvek (mezinárodní konf.)
Periodikum: Atmospheric Composition change. Causes and Consequences - Local to Global
Projekty: Matematické modelování kvality ovzduší s aplikacemi v krizovém managementu
Bibliografická citace: EBEN, Kryštof, RESLER, Jaroslav, JURUŠ, Pavel, BELDA, Michal. A Comparison of Tropospheric NO2 Columns Retrieved from Satellite Instruments with Model Values Simulated by the Mesoscale Model CAMx. In: FUZZI, S., MAIONE, M., eds. Atmospheric Composition change. Causes and Consequences - Local to Global. Roma: Aracne, 2009, S. 1-4. ISBN 978-88-548-2268-9.
ID: 334174

Abstrakt

A comparison of retrieved tropospheric NO2 columns from satellite instruments SCIAMACHY and OMI with their model counterparts has been performed for one month’s simulation of the pair WRF-CAMx. A good correspondence has been found. A simplified version of optimum interpolation in the state space consisting of tropospheric columns has been run. The ratio of analysed to model column has been used as a scaling factor for model ground level NO2 concentrations. If the corrected concentrations fit better with observations, it may be an evidence of model bias in all vertical levels. If the correction is small but the model fit is poor, it may be an evidence of lack of representativity of the station.