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CTM MOCAGE

CTM MOCAGE. Centre National de Recherches Météorologiques/ GMGEC/CATS. 1rst ESCOMPTE MODELLING EXERCICE WORKSHOP Toulouse, Mayl 2004. Forced mode of the inter-comparison exercice Evaluation of the meteorological and chemical fields. Domains. Horizontal resolution. Meteo. forcing.

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CTM MOCAGE

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  1. CTM MOCAGE Centre National de Recherches Météorologiques/ GMGEC/CATS 1rst ESCOMPTE MODELLING EXERCICE WORKSHOP Toulouse, Mayl 2004 • Forced mode of the inter-comparison exercice • Evaluation of the meteorological and chemical fields

  2. Domains Horizontal resolution Meteo. forcing Emission inventories Globe 2° ARPEGE EDGAR et GEIA Europe 1° ARPEGE EDGAR et GEIA France 0.25° ARPEGE EDGAR et GEIA South-East 0.08° ALADIN GENEMIS Specific Em. Inv MOCAGE : a polyvalent tool to simulate atmospheric chemistry 47 levels (s,P) up to 5 hPa (7 in the boundary layer) Convection : [Bechtold] Turbulent diffusion : [Louis] Dry deposition : extension [Wesely] Nebulosity : 3D (on-line)

  3. Domains Horizontal resolution Meteo. forcing Emission inventories Globe 2° ARPEGE EDGAR et GEIA Europe 1° ARPEGE EDGAR et GEIA France 0.25° ARPEGE EDGAR et GEIA South-East 0.08° ALADIN GENEMIS Specific Em. Inv MOCAGE : a polyvalent tool to simulate atmospheric chemistry 47 levels (s,P) up to 5 hPa (7 in the boundary layer) Convection : [Bechtold] Turbulent diffusion : [Louis] Dry deposition : extension [Wesely] Nebulosity : 3D (on-line) Every 3 hours (operational analyse every 6 hours) Point source = area sources

  4. Specific emission inventory : NOx

  5. Specific emission inventory : Isoprene

  6. Comparison to observations & 3D-files • On – line interpolator(8 cubes around) • Adapted to the different measurement platforms • Taking into account model surface height and altitude of the measurement • Off-line run option available

  7. WEAKNESS • Resolution (against meso-scale • processes) • No thermo. aerosol modules yet STRENGTHS • No chemical boundary conditions • Modular tool • Chemical schemes • Grid nesting • Treatment of convection • Meteorology (as off-line model) • Resolution Model strengths/weakness

  8. General comments on comparisons METEOROLOGICAL FIELD FALCON-WIND 24/06/2004 : Issue on the humidity field

  9. General comments on comparisons METEOROLOGICAL FIELD FALCON-WIND 24/06/2004 : Issue on the humidity field

  10. General comments on comparisons METEOROLOGICAL FIELD FALCON-WIND 25/06/2004

  11. General comments on comparisons METEOROLOGICAL FIELD FALCON-WIND 25/06/2004

  12. General comments on comparisons CHEMICAL FIELD AIRCRAFTS EXPLORATION A1

  13. General comments on comparisons CHEMICAL FIELD AIRCRAFTS EXPLORATION A2

  14. General comments on comparisons CHEMICAL FIELD AIRCRAFTS EXPLORATION A5

  15. General comments on comparisons CHEMICAL FIELD AIRCRAFTS EXPLORATION CLU

  16. General comments on comparisons CHEMICAL FIELD CVB

  17. General comments on comparisons CHEMICAL FIELD LIDAR POI3 POI4 POI2

  18. MOCAGE : able to provide reasonable large scale field • Studies performed so far show that chemical modeling in this area is highly sensitive to • Chemical scheme use (SAPRC-RACM) • Inventories (mainly for primary coumpounds) • Chemical boundary conditions • Spin-up Conclusion MERA station and MOZAIC profiles in process (see Observed and modelled chemical weather during ESCOMPTE, Atm. Res.) • Different problems • Some morning vertical distribution • High ozone concentration over sea

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