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TCAM model configuration for POMI simulations

TCAM model configuration for POMI simulations. C. Carnevale , G. Finzi, E. Pisoni, M. Volta Dipartimento di Elettronica per l’Automazione Università degli Studi di Brescia. GAMES: Gas Aerosol Modelling Evaluation System. Emission inventories. Land use Topography. MM5 output. PROMETEO.

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TCAM model configuration for POMI simulations

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  1. TCAM model configuration for POMI simulations C. Carnevale, G. Finzi, E. Pisoni, M. Volta Dipartimento di Elettronica per l’Automazione Università degli Studi di Brescia

  2. GAMES: Gas Aerosol Modelling Evaluation System Emission inventories Land use Topography MM5 output PROMETEO Temporal Profiles POEM-PM 3D wind and temperature fields Turbolence and Boundary Layer parameters Emission Fields Boundary and Initial condition BOUNDY TCAM VOC speciation Profiles PM size and chemical speciation Profiles 3D concentration fields Chimere output SystemEvaluation Tool

  3. Meteorological data pre-processing PROMETEO Gridprojection Gridrescaling Turbolenceparameters

  4. Emission data pre-processing POEM-PM TemporalModulation VOC speciation VOC lumping PM10 speciation

  5. Boundary Condition data pre-processing Boundy TCAM-gridboundaryextraction (Temporalinterpolation) Gas chemicalmechanismslinking Aerosol chemical and sizeclasseslinking

  6. TCAM: Transport and Depostion Module • Eulerian 3D model • Terrain-following coordinate system • Horizontal Transport Module: Chapeau Function + Forester Filter • Vertical Transport Module: Crank-Nicholson hybrid solver based on the vertical diffusivity coefficient • Deposition Module • Dry deposition: resistance-based approach • Wet deposition: scavenging approach for both gas and aerosol species

  7. TCAM: Gas chemical module • Chemical Mechanism • CBIV 90 • SAPRC 90/97 • COCOH 97 • Numerical Solver • QSSA (explicit) • IEH (hybrid) • Species: 95 • Reactions: 187 • Fast-Species (12): LSODE (implicit) • Slow-Species: Adams-Bashforth (explicit)

  8. Shell Core TCAM: Aerosol module • Chemical Species: 21 • 12 inorganics • 9 organics • Size Classes: <10 (from 0.01 mm to 50 mm) • Fixed moving approach • Involved Phenomena: • Condensation/Evaporation • Nucleation • SO2 aqueus chemistry

  9. TCAM configuration overview • Grid resolution: • D1: 5x5km2 (?) or 10x10km2 • D2: 2.5x2.5km2 (?) or 5x5km2 • Vertical resolution • First level: 20 mt (top) • Last level: 4000 mt a.g.l. (top) • Chemistry • Gas: COCOH97 - 95 species, 187 reactions, LSODE) • Aerosol: 21 species, 10 (?) size classes, SCAPE2

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