1. Federal Department of Home Affairs FDHA Federal Office of Meteorology and Climatology MeteoSwiss PP COLOBOC – Status Report COSMO General meeting 7-10 September 2009, Offenbach Jean-Marie Bettems MeteoSwiss

2. PP COLOBOC, Status Report | COSMO General meeting, 7-10 September 2009, Offenbach Bettems Jean-Marie (jean-marie.bettems [at] meteoswiss.ch) COLOBOC – Goal Consolidation of Lower Boundary Conditions It is the main goal of this project to incorporate all activities related to the lower boundary conditions which have already reached an advanced state, and to consolidate these developments into well tested and documented software packages readily usable by the COSMO community.

3. PP COLOBOC, Status Report | COSMO General meeting, 7-10 September 2009, Offenbach Bettems Jean-Marie (jean-marie.bettems [at] meteoswiss.ch) COLOBOC – Contributions from … J. Helmert, H. Asensio, G. Vogel (DWD) G. Bonafe (ARPA- SIMC) E. Machulskaya (Roshydromet) G. Duniec (IMGW) M. Buzzi, G. De Morsier, R. Stöckli, JM. Bettems (MeteoSwiss) CLM Community

4. PP COLOBOC, Status Report | COSMO General meeting, 7-10 September 2009, Offenbach Bettems Jean-Marie (jean-marie.bettems [at] meteoswiss.ch) COLOBOC, task 0 Collect documentation on data sets available for SVAT-model validation. Deliverables : (09.2010) survey and documentation of data sets characteristics > limited number of high quality operational sites > information accessible through COSMO web site > access to data themselves (?) (09.2010) extend cross-model validation at available sites > use and extend wikispace initiated by G.Bonafe

5. PP COLOBOC, Status Report | COSMO General meeting, 7-10 September 2009, Offenbach Bettems Jean-Marie (jean-marie.bettems [at] meteoswiss.ch) COLOBOC, task 0 – Actions taken New sonic at Payerne to add measurement of turbulence @ 10m, in activity since spring 2009. Template to document observation sites has been defined. Contact with SRNWP ET surface and soil and with MeteoFrance to share additional data (Jean-François Mahouf) Link with Base:ALFA project (Francesca Di Giuseppe)

6. PP COLOBOC, Status Report | COSMO General meeting, 7-10 September 2009, Offenbach Bettems Jean-Marie (jean-marie.bettems [at] meteoswiss.ch) SMOSREX data SMOSREX (Surface Monitoring Of the Soil Reservoir EXperiment), has been in operation since January 2001 in Mauzac, near Toulouse in France. Continuous ground measurements of meteorological variables, soil moisture and temperature profiles have been taken over bare soil and a grass plot left fallow. NEW: Some data are made available by MeteoFrance: Dear ET member, Please find below the link to get local validation dataset from SMOSREX (near Toulouse) over a 3 year period: http://www.cnrm.meteo.fr/aladin/spip.php?rubrique43 since we agreed in June to share observational datasets for common validations of our land surface schemes. This is a first step in that direction. If some of you have data that they could share, we could put them at the same location or think about what Jean-Marie suggested (to be hosted under the COLOBOC web site). Jean-François Mahouf / SRNWP ET Soil and Surface

7. PP COLOBOC, Status Report | COSMO General meeting, 7-10 September 2009, Offenbach Bettems Jean-Marie (jean-marie.bettems [at] meteoswiss.ch) The BASE:ALFA project [Budget of the Atmosphere-Soil Exchange:A Long-term Fluxes Analysis] F. Di Giuseppe 1, G. Bonafè 1, L. Caporaso 1,2,3, M. Petitta 4 1 ARPA-SIMC, 2 ISAC-CNR, 3 University of Bologna, 4 EURAC aim The aim of the BASE-ALFA project is to: 1. acquire a complete set of surface and atmospheric measurements during two intensive observing periods (1+1months) at San Pietro Capofiume in the middle of the Po Valley; 2. verify the capability of state-of-the-art methods to correctly simulate PBL height from observed parameters when compared to LIDAR observations assumed as benchmark; 3. verify the capability of diagnostic and prognostic models to correctly simulate the PBL heights. measurements Sonic anemometer and fast hygrometer (turbulent fluxes, surface layer stability)‏ Radiometer (surface radiative balance)‏ Ground heat sensor LIDAR / ceilometer (aerosol profiles, PBL height determination)‏ TDR (soil moisture)‏ Synop station, radiosonde, meteorological radar, air quality station

8. PP COLOBOC, Status Report | COSMO General meeting, 7-10 September 2009, Offenbach Bettems Jean-Marie (jean-marie.bettems [at] meteoswiss.ch) COLOBOC, task 0 – Roadmap Collect full set of data from the 6 observation sites: Lindenberg (D), Payerne (CH), Capofiume (I), Sodankylaä (FI), Cabauw (NL), Toulouse (F) Provide complete documentation of these sites Question for COSMO StC / SRNWP coordinator: Would it be possible to find an agreement with data providers to make these data available for all COSMO members? … for the SRNWP community (see mail JF. Mahouf)? Extend G.Bonafe Wiki platform with validation of COSMO-7, COSMO-2, IFS in addition to COSMO-EU Single point of access from COSMO web site

9. PP COLOBOC, Status Report | COSMO General meeting, 7-10 September 2009, Offenbach Bettems Jean-Marie (jean-marie.bettems [at] meteoswiss.ch) COLOBOC, task 1 Consolidate TERRA standalone, the externalized surface module of COSMO. Deliverables : (11.2009) stable code (incl. tools and documentation) > included in COSMO code, dedicated make target (06.2010) consolidated code

10. PP COLOBOC, Status Report | COSMO General meeting, 7-10 September 2009, Offenbach Bettems Jean-Marie (jean-marie.bettems [at] meteoswiss.ch) COLOBOC, task 1 – Work done Some work has already been done at MeteoSwiss to consolidate the code A serie of bugs have been corrected cycling TERRA standalone experiments processing of GRIB files processing and interpolation of atmospheric fields … New features have been introduced temporal gap filling to take care of missing BC files new namelists parameters to control the way atmospheric fields are pre-processed (staggering, accumulation, …) more diagnostic

11. PP COLOBOC, Status Report | COSMO General meeting, 7-10 September 2009, Offenbach Bettems Jean-Marie (jean-marie.bettems [at] meteoswiss.ch) COLOBOC, task 1 – Roadmap Other issues have been recognized, but are not yet solved Points with loam type are not usable (at least when using some new parametrization introduced by Felix Ament) Still not all information is correctly initialized when cycling TERRA standalone runs Robustness of the code should be improved... There is a need to understand how much the evolution of the soil (and of the snow pack) differs between TERRA standalone and the full COSMO Simplified transfer scheme (Louis) No feedback loop between soil and atmosphere

12. PP COLOBOC, Status Report | COSMO General meeting, 7-10 September 2009, Offenbach Bettems Jean-Marie (jean-marie.bettems [at] meteoswiss.ch) COLOBOC, task 2 Consolidate software for generating external parameters. Deliverables: (12.2009) consolidated code to process ext. param. raw data (09.2010) reference system deployed at DWD, accessible for all COSMO users

13. PP COLOBOC, Status Report | COSMO General meeting, 7-10 September 2009, Offenbach Bettems Jean-Marie (jean-marie.bettems [at] meteoswiss.ch) Software Requirements Specifications User requirements: support of variable domains (including poles) on the earth the output data should contain information on the processing software and input raw data (reproducibility) the EXTPAR software system should be run from a shell addition of further external parameter fields should be feasible

14. PP COLOBOC, Status Report | COSMO General meeting, 7-10 September 2009, Offenbach Bettems Jean-Marie (jean-marie.bettems [at] meteoswiss.ch) Software Requirements Specifications Technical requirements: NetCDF as basic file format for Input/Output source code in Fortran 2003 / Fortran 95 Standard technical documentation with doxygen (HTML and/or Latex style documentation generated with the help of “tags” from comments in the Fortran source code)

15. PP COLOBOC, Status Report | COSMO General meeting, 7-10 September 2009, Offenbach Bettems Jean-Marie (jean-marie.bettems [at] meteoswiss.ch) Additional external parameters Current external parameter fields for the COSMO model, total 15 fields Planned extensions for the COSMO model, total 30 fields HH, FR_LAND, SOILTYP, Z0, SSO_STDH, SSO_GAMMA, SSO_THETA, SSO_SIGMA, PLCOV_MN, PLCOV_MX, LAI_MN, LAI_MX, FOREST_D, FOREST_E, ROOTDP HH, FR_LAND, SOILTYP, Z0, SSO_STDH, SSO_GAMMA, SSO_THETA, SSO_SIGMA, PLCOV_MX, LAI_MX, FOREST_D, FOREST_E, ROOTDP NDVI, NDVI_MX, NDVI_RATIO, AER_BC, AER_DUST, AER_SO4, AER_SS, T2M_CL, URBAN, PRS_MIN, EMISS_RAD, FR_LAKE, DEPTH_LK, SLOPE_ASP, SLOPE_ANG, HORIZON, SKYVIEW

16. PP COLOBOC, Status Report | COSMO General meeting, 7-10 September 2009, Offenbach Bettems Jean-Marie (jean-marie.bettems [at] meteoswiss.ch) The current radiation scheme in the COSMO-Model uses constant aerosol values for desert, sea, land and urban areas. New, monthly mean of the following aerosol types can be read from the external parameters: AER_SO4: Tegen (1997) aerosol type sulfate drops AER_DUST: Tegen (1997) aerosol type mineral dust AER_ORG: Tegen (1997) aerosol type organic AER_BC: Tegen (1997) aerosol type black carbon AER_SS: Tegen (1997) aerosol type sea salt This can be controlled by the new INT2LM Namelist Switch itype_aerosol = 1: Default and present option: no external parameters are read; the COSMO-Model uses constant values = 2: 12 monthly mean values for the above fields are read and the INT2LM computes an actual value for the given day and gives that to the COSMO-Model for further processing. Additional external parameters - Aerosols

17. PP COLOBOC, Status Report | COSMO General meeting, 7-10 September 2009, Offenbach Bettems Jean-Marie (jean-marie.bettems [at] meteoswiss.ch) Harmonized World Soil Database (1km @ mid-latitude, global) Including some information about depth of impermeable level First evaluation together with the CLM community Only first steps within COLOBOC Modis data for albedo Evaluation of impact (requires some COSMO code modifications) ETOPO1 Information about ocean depth at 2km resolution Raw data for external parameters Alternative raw dataset

18. PP COLOBOC, Status Report | COSMO General meeting, 7-10 September 2009, Offenbach Bettems Jean-Marie (jean-marie.bettems [at] meteoswiss.ch) COLOBOC, task 3.1 Document external parameters data set. Done Documentation available on COSMO web site

19. PP COLOBOC, Status Report | COSMO General meeting, 7-10 September 2009, Offenbach Bettems Jean-Marie (jean-marie.bettems [at] meteoswiss.ch) COLOBOC, task 3.2 Consolidate external parameters data set. Deliverables: (12.2009) revised existing external parameters (12.2009) extended set of external parameters > adapted int2lm software (09.2010) evaluation results for alternative soil type data sets in Europe (09.2010) evaluate MODIS derived vegetation characteristics

20. PP COLOBOC, Status Report | COSMO General meeting, 7-10 September 2009, Offenbach Bettems Jean-Marie (jean-marie.bettems [at] meteoswiss.ch) MODIS derived vegetation (1) Historical records of vegetation characteristics reveal a substantial inter-annual variability of the start of season, which may limit the usefulness of a climatology based data set. A framework has been developed by R.Stöckli et al., using a prognostic phenology model with parameters constraint by MODIS data, which can provide an offline gridded forecast of the vegetation characteristics taking into account the actual evolution of the weather [Stöckli 2008]. Basically a statistical approach is used, relying on an ensemble Kalman filter to define the optimal parameters of the phenology model, for a specified set of meteorological data predictor (e.g. from a NWP model).

21. PP COLOBOC, Status Report | COSMO General meeting, 7-10 September 2009, Offenbach Bettems Jean-Marie (jean-marie.bettems [at] meteoswiss.ch) MODIS derived vegetation (2) The prognostic penology model includes the three main climatic controls of seasonal phenological processes: minimum daily temperature, mean daily vapor pressure deficit, mean daily global radiation (Growing Season Index, Jolly et al. 2005). The model derives LAI and FPAR (Fraction of Absorbed Photosynthetically Active Radiation) A 1000 members EKF is used to derives the optimal parameters of the prognostic phenology model; one set of parameters is computed for each type of vegetation. ‘… the model reproduces the inter-annual variability of start of season with correlations ranging between 0.6-0.9 when compared to independent ground observations.’ [Stöckli et al, Journal of Geophysical Research 2008]

22. PP COLOBOC, Status Report | COSMO General meeting, 7-10 September 2009, Offenbach Bettems Jean-Marie (jean-marie.bettems [at] meteoswiss.ch) 22 Predict vegetation dynamics in Switzerland Left panel: satellite derived LAI Right panel: forecast: coupled to NWP model MODIS derived vegetation (3)

23. PP COLOBOC, Status Report | COSMO General meeting, 7-10 September 2009, Offenbach Bettems Jean-Marie (jean-marie.bettems [at] meteoswiss.ch) MODIS derived vegetation (4) The proposed new action consists to compare the produced vegetation characteristics with the COSMO climatological information and to evaluate the impact of such an approach in the COSMO model (in particular on the surface fluxes). The CPU cost of the predictive model is neglectable. The CPU cost of the EKF is about 1 day per year of data, on 256 PU (9 years of MODIS data are available). The framework to produce the vegetation characteristics is already installed and running at MeteoSwiss, and R. Stöckli is willing to contribute to this action.

24. PP COLOBOC, Status Report | COSMO General meeting, 7-10 September 2009, Offenbach Bettems Jean-Marie (jean-marie.bettems [at] meteoswiss.ch) COLOBOC, task 4 Revision of TERRA and the associated look-up tables. Deliverable (12.2009) new release of TERRA in official COSMO code > new configuration as an option (09.2010) optimal configuration of TERRA documented, consolidated look-up tables available, results of validation available

25. PP COLOBOC, Status Report | COSMO General meeting, 7-10 September 2009, Offenbach Bettems Jean-Marie (jean-marie.bettems [at] meteoswiss.ch) Lindenberg/D Tongyu/China snow, fully humid, hot summer (Dfa) warm temperate, fully humid, warm summer (Cfb) snow, winter dry, hot summer (Dwa) 812 mm/a Bondville/USA 2003 375 mm/a312 mm/a Simulations with TERRA standalone

26. PP COLOBOC, Status Report | COSMO General meeting, 7-10 September 2009, Offenbach Bettems Jean-Marie (jean-marie.bettems [at] meteoswiss.ch) Tested options and assumptions  Reference conditions for different soil types (sand, silty sand, loamy sand, sandy loam and loam)  Impermeable lower hydrological boundary (“rigid lid”)  Ground water as lower boundary condition  Depletion of root density with depth  Bare soil evaporation according to Noilhan & Planton (1989)  Reduction of root depth (0.2m)  Revised parameterization of infiltration allowing higher infiltration rates  Moisture drainage and diffusion parameterization according to Brooks & Coorey (DWD soil types)  Soil heat conductivity does not depend on soil moisture  Satellite derived LAI and plant cover (climatolo- gical annual cycle)  Variation of surface roughness  Variation of stomatal resistance and wilting point … and various combinations of them Simulations with TERRA standalone

27. PP COLOBOC, Status Report | COSMO General meeting, 7-10 September 2009, Offenbach Bettems Jean-Marie (jean-marie.bettems [at] meteoswiss.ch) Increased performance of Bowen ratio Standard code Current set of options (RL, RD, BS, SAT) New set of options (GW+RD+BS+SAT+ eINF) Simulations with TERRA standalone

28. PP COLOBOC, Status Report | COSMO General meeting, 7-10 September 2009, Offenbach Bettems Jean-Marie (jean-marie.bettems [at] meteoswiss.ch) Experiments with COSMO-EU (DWD) and with COSMO-7 / COSMO-2 (MeteoSwiss) Configuration of experiment Bare soil evaporation after Noilhan and Platon, 1989 (BS) - former Dickinson, 1984 Non-uniform root distribution (RD) Ground water with upward diffusion HeatCond: Soil moisture dependent heat conductivity No vegetation climatology (int2lm not yet ready) Simulations with COSMO

29. PP COLOBOC, Status Report | COSMO General meeting, 7-10 September 2009, Offenbach Bettems Jean-Marie (jean-marie.bettems [at] meteoswiss.ch) Simulations with COSMO EXP 6795 2m-Temperature for a single date (2009031700) Difference: Reference – Experiment Reference

30. PP COLOBOC, Status Report | COSMO General meeting, 7-10 September 2009, Offenbach Bettems Jean-Marie (jean-marie.bettems [at] meteoswiss.ch) Simulations with COSMO Timeseries of T_2M

31. PP COLOBOC, Status Report | COSMO General meeting, 7-10 September 2009, Offenbach Bettems Jean-Marie (jean-marie.bettems [at] meteoswiss.ch) Simulations with COSMO Comparison of diurnal cycle T_2M

32. PP COLOBOC, Status Report | COSMO General meeting, 7-10 September 2009, Offenbach Bettems Jean-Marie (jean-marie.bettems [at] meteoswiss.ch) Experiment with all model configurations (COSMO-EU, COSMO-7, COSMO-2) shows a degradation of T_2m and TD_2m biases: The temperature is generally higher in new configuration, leading to a more positive bias at the vast majority of the stations, and to less negative bias only at stations north and south of the Alps. The negative bias within the Alps remains or is even more pronounced at particular stations.temperature The dewpoint temperature bias is switching from an overestimation (wet bias) to an underestimation (dry bias) at most inland stations.dewpoint temperature Simulations with COSMO

33. PP COLOBOC, Status Report | COSMO General meeting, 7-10 September 2009, Offenbach Bettems Jean-Marie (jean-marie.bettems [at] meteoswiss.ch) Modifications of TERRA by F. Ament (ZMAW University Hamburg) into COSMO code Experiment with TERRA standalone shows improved Bowen ratio Experiment with full model (COSMO-EU, COSMO-7, COSMO-2) shows a degradation of T_2m and TD_2m scores T_2M and TD_2M Bias : wrong effect from right cause? To be done Incorporation of enhanced external parameters (min. stom. resistance, NDVI climatology, emissivity, clim. soil temperature) Adaptions of look-up tables (ensure backward compatibility) Impact of adaptions in TERRA on soil moisture analysis (SMA) in COSMO-EU (DWD) has to be considered COLOBOC, task 4 – Status

34. PP COLOBOC, Status Report | COSMO General meeting, 7-10 September 2009, Offenbach Bettems Jean-Marie (jean-marie.bettems [at] meteoswiss.ch) COLOBOC, task 5.1 Verify and consolidate the new multi-layer snow model developed at Roshydromet. Deliverable (09.2009) report on validation of new snow model (10.2009) new release of TERRA in official COSMO code (09.2010) report on new snow model in climate mode

35. PP COLOBOC, Status Report | COSMO General meeting, 7-10 September 2009, Offenbach Bettems Jean-Marie (jean-marie.bettems [at] meteoswiss.ch) Validation experiments Winter from September 2007 to May 2008 COSMO-7 results are from the operational data assimilation including a daily merge of the snow analysis  snow analysis uses surface observations and the snow mask derived from Meteosat Second Generation SEVIRI (temporal composite) Reference TERRA stand-alone driven by hourly atmospheric analysis without snow analysis New snow model Same as reference but with 2 layer snow model (2LSM)

36. PP COLOBOC, Status Report | COSMO General meeting, 7-10 September 2009, Offenbach Bettems Jean-Marie (jean-marie.bettems [at] meteoswiss.ch) Bias = 2LSM - REF [m] REF is TERRA stand-alone without snow analysis. Time series of domain mean [m] for 2LSM, COSMO-7 and REF Validation experiments

37. 37 COSMO General Meeting 2009 | COLOBOC PP Multi-layer snow modelGuy de Morsier et ali Bias (2LSM – SLF) [m] ZOOM_ SNOWPACK stations : OK Period: September 2, 2007 to May 31, 2008 : + : - EVERY day : |  h|>300m Obs! Validation experiments

38. PP COLOBOC, Status Report | COSMO General meeting, 7-10 September 2009, Offenbach Bettems Jean-Marie (jean-marie.bettems [at] meteoswiss.ch) OK Period: September 2, 2007 to May 31, 2008 Station at 2240m in the Western Alps Model at 2097m  h = -143m Validation experiments

39. PP COLOBOC, Status Report | COSMO General meeting, 7-10 September 2009, Offenbach Bettems Jean-Marie (jean-marie.bettems [at] meteoswiss.ch) Station at 2450m on the southern slope of the Alps Model at 2350m  h = -100m OK Period: September 2, 2007 to May 31, 2008 Validation experiments

40. PP COLOBOC, Status Report | COSMO General meeting, 7-10 September 2009, Offenbach Bettems Jean-Marie (jean-marie.bettems [at] meteoswiss.ch) Too little but Period: September 2, 2007 to May 31, 2008 good ablation Station at 1650m on the North Western slope of the Alps Model at 1654m  h = 4m Validation experiments

41. PP COLOBOC, Status Report | COSMO General meeting, 7-10 September 2009, Offenbach Bettems Jean-Marie (jean-marie.bettems [at] meteoswiss.ch) Too little! Period: September 2, 2007 to May 31, 2008 Station at 1510m on the North Western slope of the Alps Model at 1462m  h = -48m Validation experiments

42. PP COLOBOC, Status Report | COSMO General meeting, 7-10 September 2009, Offenbach Bettems Jean-Marie (jean-marie.bettems [at] meteoswiss.ch) Obs! Period: September 2, 2007 to May 31, 2008 Station at 2195m Within the Alps Model at 2192m  h = -3m  dubious observations!  possible wind ablation Validation experiments

43. PP COLOBOC, Status Report | COSMO General meeting, 7-10 September 2009, Offenbach Bettems Jean-Marie (jean-marie.bettems [at] meteoswiss.ch) Slightly better snow/no snow with multi layer snow model over Northern Europe In Eastern Europe and over orography the new snow model produces larger snow depth In the Alpine region: The systematic underestimation of the snow height by the original snow model is largely removed by using the 2 layer snow model The multi layer snow model works well at different altitudes but might overestimate the snow height in some areas The multi layer snow model better represents the ablation period (Spring) Validation experiments - Conclusion

44. PP COLOBOC, Status Report | COSMO General meeting, 7-10 September 2009, Offenbach Bettems Jean-Marie (jean-marie.bettems [at] meteoswiss.ch) Check other snow model variables : snow water content (liquid and total), snow temperature Compare with SNOWPACK from SLF Look at wet and dry periods and spatial distribution of precip. Evaluate temporal evolution with in-situ observations also outside of the Alps Compute winter 2007-2008 with full 3D model with COSMO- 7 and COSMO-2 without analysis in particular evaluate effect of higher resolution Validation experiments - Outlook

45. PP COLOBOC, Status Report | COSMO General meeting, 7-10 September 2009, Offenbach Bettems Jean-Marie (jean-marie.bettems [at] meteoswiss.ch) COLOBOC, task 5.2 Finalize and verify the improved snow analysis developed at MeteoSwiss. Deliverable (11.2009) updated sfcana code by merging MeteoSwiss and DWD mods > report on validation of new snow analysis (02.2010) snow analysis adapted for new snow model

46. PP COLOBOC, Status Report | COSMO General meeting, 7-10 September 2009, Offenbach Bettems Jean-Marie (jean-marie.bettems [at] meteoswiss.ch) COLOBOC, task 6 Make the urban module developed at EPFL by O.Fuhrer available for the COSMO community. Deliverable (12.2009) code and documentation

47. PP COLOBOC, Status Report | COSMO General meeting, 7-10 September 2009, Offenbach Bettems Jean-Marie (jean-marie.bettems [at] meteoswiss.ch) COLOBOC, task 7 Consolidate and validate parameterization of land surface heterogeneity by the tile/mosaic approach. Deliverable (02.2010) tile/mosaic within official COSMO code and documented (09.2010) results of evaluation COSMO members involved: Grzegorz Duniec / Polen, G.Morsier

48. PP COLOBOC, Status Report | COSMO General meeting, 7-10 September 2009, Offenbach Bettems Jean-Marie (jean-marie.bettems [at] meteoswiss.ch) COLOBOC, task 7 Initial validation of SUBS (tile/mosaic implementation) was done for COSMO 4.8 by G.Duniec Tests performed Orig – original COSMO ver. 4.8 Ctrl – control (subs modified COSMO ver 4.8 with no account for subs) Twins – subs modified COSMO ver. 4.8 with nsubs=4, low resolution input data only Subs – modified COSMO ver. 4.8, nsubs=4, high – resolution data included

49. PP COLOBOC, Status Report | COSMO General meeting, 7-10 September 2009, Offenbach Bettems Jean-Marie (jean-marie.bettems [at] meteoswiss.ch) COSMO GM Offenbach | postprocessing tool jean-marie.bettems@meteoswiss.ch Thank you for your attention!