1. GEMS Kick-off meeting, Hambourg, 4 July 2005 [RAQ] Regional Air Quality Vincent-Henri.Peuch@meteo.fr

2. GEMS How to enhance and improve Regional Air Quality forecasts, hindcasts and analyses across Europe in the GMES context? through prescription of realistic chemical boundary conditions through assimilation of high-resolution remote-sensing data through improvement of models through practice of daily forecasting through international collaboration in AQ skill scores definition and use through development of ensemble and probabilistic forecasting through countrywise organisation of consortia (policy, monitoring, assessment, forecasts) Last but not least : through interaction with AQ users and policy makers … GEMS for GMES / Air Quality

3. GEMS The team

4. GEMS Descripton of Work (1) evaluate the advantages of the implementation of satellite information in regional air quality prognoses. provide and evaluate in near-real-time forecasts of gases and aerosols at the continental to regional scales across Europe, relying on global assimilated fields and forecasts and on regional scale data assimilation. provide continental to regional scales air quality hindcasts and climatologies, assess the effects of variability and changes at the global scale on regional air quality and provide background for policy evaluation and evolution.

5. GEMS Descripton of Work (2) improve existing continental to regional scales air quality models, statistical post-treatment of forecasts, and explore multi-model ensemble approaches. initiate and support cooperative routine cooperation between national air quality forecasts centers for data access, skill evaluation and forecasts comparisons. Improve our understanding of the health impacts of air quality and incorporate air quality forecast information into a health forecast.

6. GEMS Workpackages WP-RAQ1 WP-RAQ2 WP-RAQ3 WP-RAQ4 WP-RAQ5 WP-RAQ6 Impact of global-scale boundary conditions, of high-resolution data assimilation and of detailed emissions Coordination, interfaces and communication between ECMWF and partner institutes Coordinated access to verification data over Europe Pre-operational near-real-time daily forecasts Regional simulations over re-analyses periods Use of GEMS data to assess the public health effects of long-range aerosol and reactive gases V.-H. Peuch (Météo-Fr) H. Elbern (FRIUUK) L. Tarrason (met.no) G. Bergametti (CNRS) D. Jacob (MPI-M) D. Briggs (ICSTM)

7. GEMS GRG IFS ops AER GEMS central site Global archives MOCAGE RAQ archives UMAQ METO.UK UK CHIMERE CNRS, INERIS France CAC DMI Denmark UAM-V NKUA Greece BOLCHEM ISAC Italy EMEP met.no Norway EURAD FRIUUK Germany SILAM MATCH FMI Finland Partners sites EURAD BOLCHEM PRO GEMS Website RAQ1-4-5 : models Météo-Fr FRIUUK ISAC

8. GEMS Reactive gases boundary values Aerosol boundary values GRG AER Emission rates Analyses Europe Regions Sensitivities Met. forcings Chem. bound. Emis. rates Satellite retievals In situ observations CHIMERE MOCAGE BOLCHEM EURAD EMEP 3D,4D-var Kriging 3D-fgat, KF tbd 1D-var RAQ2 : boundaries, emissions, assimilation

9. GEMS EMEP HELCOM OSPAR GAW CREATE projectDAEDALUS project GATO projectMet-Moniteur … MOZAIC data GEMS RAQ verification data flow RAQ3 : coordinated access to databases, verificacation NRT verification

10. GEMS RAQ6 : Health aspects

11. GEMS GEMS RAQ, EEA and national environment institutes GEMS RAQ and national consortia : EURAD, Prév’Air,... GEMS RAQ and GSE PROMOTE GEMS RAQ and a COST action initiative on AQ forecasting Synergies http://www.prevair.org http://www.gse-promote.org