Time-series of the daily averaged data are shown for 3 atmospheric layers. IAGOS data (black) are compared with the regional ensemble over the 4-day forecast period. The 8 levels of the models are attributed to layers; 0-250m=surface layer, 500-1000m=Boundary layer and 2000-5000m=free troposphere. The models are CHI=CHIMERE, EMP=EMEP, FMI=SILAM, KNM=LOTOS-EUROS, MFM=MOCAGE, RIU=EURAD, SMH=MATCH. Dates without timeseries correspond to data not yet validated. Profiles will be displayed as soon as they are validated.