Scholarly record
OZONE FORMATION IN SOUTHEAST EUROPE SIMULATED BY AN ADDVANCED QIR QUALITY MODEL
Abstract
Some studies of the MM5/CMAQ modeling system sensitivity to changes of the emissions of ozone precursors are presented in the paper. Tree domains were set over Europe with resolution 90-30-10 km. The most inner domain embraces entirely Romania, Bulgaria and Greece. MM5 was run over these domains for June 2000 with NCEP 1x1 degree Global Analysis data. MM5 was run on the external grids in a “two-way nesting” and over the finer grid in a “one-way nesting” mode. EMEP inventory grid data and its 16.67 km desegregation, were used to prepare the emission input. Proper time profiles, monthly, weekly and daily, were imposed upon yearly values for better presentation of emission variations as recommended by EPA Four scenarios were used for evaluate the sensitivity of the model for ozone formation: (a) a full emission base case and three control emission scenarios: (b) of reduced NOx (50\%), (c) of reduced VOC (50\%) and (d) combination NOx (50\%)-VOC (25\%). By running these four scenarios the influence of the variation of emissions on ozone formation in different geographical regions was checked. Results from comparisons between different runs, between the basic case calculations and measurements and between the basic case and other model results are shown and commented.
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References10
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