1. WG 3: plans for next year COSMO General Meeting 23 September 2005 Marco Arpagaus

2. Priority projects  Towards Unified Turbulence-Shallow Convection Scheme (UCTS) mainly a WG3 effort with important contributions from WG2  Tackle deficiencies in precipitation forecasts a cross-WG project (mainly WG5 and WGs 1-3)

3. WP 3.1: Planetary boundary layer  3.1.1: Surface transfer scheme and turbulence scheme 3.1.1.1: Testing single column model; Revision of transfer scheme and near surface diagnosis 3.1.1.2: Reorganisation of the turbulence scheme 3.1.1.3: Extended documentation 3.1.1.4 (N.N.): New concept for the roughness layer extension of the current turbulence scheme 3.1.1.5 (N.N.): Higher vertical resolution for the lowest part of the boundary layer 3.1.1.6: Merge with 3-d approach

4. WP 3.2: Soil processes  3.2.2: Implementation of lake model into the LM  3.2.3: Intercomparison of soil models in the framework of soil moisture validation (Nicola Loglisci, Gerd Vogel, Felix Ament)

5. WP 3.3: Convection  3.3.1: Implementation and testing of alternative (deep) convection schemes

6. WP 3.4: Microphysics  3.4.1: Improvement of the three-category ice scheme

7. WP 3.5: Clouds

8. WP 3.6: Radiation  3.6.1: Cloud-radiation interaction  3.6.2: Evaluate possible inclusion of 3-d effects in current scheme ? Merge and implement new extensions for topographic effects and radiation-specific (coarser) grid

9. WP 3.7: Sub-km version  3.7.1: Use of LM to study intense convective precipitation events (?)

10. WP 3.8: z-coordinate version  3.8.1 (N.N.): Adaptation of the parameterization schemes

11. WP 3.9: Validation and related matters  3.9.1: Validating boundary layer processes using the single column framework (?)  3.9.3 (N.N.): Development of a tool for extended parameter determination; running parameter tuning experiments

12. WP 3.10: Tackle observed model deficiencies  3.10.2: Improve diagnosis of convective and turbulent gusts  3.10.3: Investigate reason for cold/moist bias in PBL