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National Repository of Grey Literature 1 records found  Search took 0.01 seconds. 
Validation of WRF-Chem and CAMx atmospheric model outputs with focusing on tropospheric ozone
 Peiker, Jan ; Karlický, Jan (advisor) ; Bednář, Jan (referee)
The atmospheric model accuracy is substantially influenced by quality of boundary conditions used by physical and chemical part of the model. The thesis evaluates the development of the model output accuracy in case of using global model outputs as boundary conditions, instead of interpolated observation data (so-called reanalyses). For this purpose, two atmospheric models WRF-Chem and CAMx with three different combinations of boundary conditions were used, thus 6 simulations in total. The simulations were performed in the domain cove- ring central Europe and were compared with data from 165 stations. The results have shown narrower distribution functions of the simulated data in general and different seasonal overestimation in both models. The substitution of original boundary conditions for those adopted from global models has shown that the replacement of meteorological boundary conditions has decreased the correlati- ons between simulations and measurements, whereas the replacement of chemical boundary conditions has increased the overestimation of both models. 1
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