1. Status of the Support Activities WG 6: Reference Version and Implementation WG Coordinator: Ulrich Schättler

2. 07.-11.09.2009 11th COSMO General Meeting - Offenbach, Germany 2 Contents Source Code Administration COSMO Web Page Documentation COSMO Newsletter COSMO Technical Reports

3. 07.-11.09.2009 11th COSMO General Meeting - Offenbach, Germany 3 Source Code Administration Starting point last autumn: –COSMO-Model 4.2 and INT2LM 1.7officially distributed –COSMO-Model 4.5 and INT2LM 1.8 as development versions Plans for the year 2008/09: –Consolidate last development versions –Include COSMO-ART –Include 2-moment microphysics –Prepare the COSMO-Model for an easy use of test-cases –Prepare the COSMO-Model for OASIS coupling –Include optimizations by NEC and IBM –Hybrid parallelization

4. 07.-11.09.2009 11th COSMO General Meeting - Offenbach, Germany 4 INT2LMCOSMO-Model New Reference Atmosphere done COSMO-ART, Pollen Interpolation of Pollen still missing done New External Parametersdone Use of new parameters still missing Optimizations by NEC, IBM – NEC: nearly done IBM: still missing 2-Moment Microphysics –  Easy Use of Test Cases –  OASIS coupling –  Hybrid Parallelization  Summary of Software Status Source Code Administration

5. 07.-11.09.2009 11th COSMO General Meeting - Offenbach, Germany 5 Source Code Administration INT2LM 1.9 (03.09.09) –Implementation of new reference atmosphere –Modifications in the initialization of perturbed pressure –Reading additional external parameters –Modifications for the vertical interpolation in case of llm2lm –Alternative interpolation of soil humidity –Alternative treatment of IFS humidity

6. 07.-11.09.2009 11th COSMO General Meeting - Offenbach, Germany 6 Source Code Administration COSMO-Model 4.8: (13.02.09) –New reference atmosphere –Implemented stable integration of the Coriolis terms by calculating their tendencies in every RK substep –Included (optional) computation of „old“ 2m temperature; can be chosen by itype_diag_t2m –Splitted computation of dynamical and convective gusts ( vmax_10m still is the sum of both) –Included several options for computing dynamical gusts with itype_diag_gusts

7. 07.-11.09.2009 11th COSMO General Meeting - Offenbach, Germany 7 Source Code Administration COSMO-Model 4.9: (15.07.09) –Implementation of COSMO-ART This is an initial release which most probably needs further testing Introduced ifdefs for a clean splitting of this component (-DCOSMOART, -DPOLLEN ); please note: lmorg.F90  lmorg.f90 ) Source Code is not distributed with the COSMO-Software, but only by KIT (the Karlsruhe Institute of Technology) –Changes in the dynamics More accurate (and expensive) discretization of metric terms for the Runge-Kutta scheme Implemented option for using potential temperature as advected variable Introduced itype_lbc_qrsg to control the treatment of humidity variables at the boundary zones

8. 07.-11.09.2009 11th COSMO General Meeting - Offenbach, Germany 8 Source Code Administration COSMO-Model 4.10: (10.09.09) –Changes in the TKE scheme (as reported by Matthias) New switch limpltkediff to run implicit vertical diffusion New switch itype_sher to run corrections for windshear productions New switch ltkesso to run separate horizontal shear mode due to SSO –New sea ice component (by Jan-Peter Schulz) This is still under testing

9. 07.-11.09.2009 11th COSMO General Meeting - Offenbach, Germany 9 Source Code Administration Actions in the next weeks –Testing of the new versions of INT2LM and the COSMO-Model –Distribution of the new versions to all partners –Preparation of new external parameter data sets with additional fields –Every COSMO partner updates its operational implementation –Every COSMO partner takes care of the update of the corresponding COSMO web pages!

10. 07.-11.09.2009 11th COSMO General Meeting - Offenbach, Germany 10 Some routines have been (partly) reorganized for better vectorization (e.g. synthetic satellite images, radiation on a coarser grid) Implemented 3D versions for diffusion and advection operators. This had negative effects on the IBM (destruction of cache re-use), therefore it is implemented with an ifdef NECSX (default: FALSE) In some routines, a loop collapsing has been implemented „by hand“ (using above ifdef ) Timings for a 12 hour COSMO-DE forecast (should take about 11 minutes on as few processors as possible) NEC SX-9 1  12 PE IBM pwr6 16  16 PE Time to Optimization 4.214951.5720.5 4.42021.8659.13 days 4.81024.2678.53 weeks 4.9634.2679.83 months Source Code Administration Vector Optimizations: The COSMO-Model still is a performance portable model!

11. DWD Plans for the near future

12. 07.-11.09.2009 11th COSMO General Meeting - Offenbach, Germany 12 COSMO-EU Grid spacing: 7 km Layers: 40 Forecast range: 78 h at 00 and 12 UTC 48 h at 06 and 18 UTC 1 grid element: 49 km 2 COSMO-DE Grid spacing: 2.8 km Layers: 50 Forecast range: 21 h at 00, 03, 06, 09, 12, 15, 18, 21 UTC 1 grid element: 8 km 2 Global model GME Grid spacing: 40 km Layers: 40 Forecast range: 174 h at 00 and 12 UTC 48 h at 06 and 18 UTC 1 grid element: 1384 km 2 Model System at DWD

13. 07.-11.09.2009 11th COSMO General Meeting - Offenbach, Germany 13 Grid spacing reduced from 40 to 30 km. Number of layers increased from 40 to 60. Number of gridpoints increased from 14.7 to 39.3 Mill. Time step decreased from 133.33 s to 100.00 s. Cost of model increased by a factor of more than four. Uppermost model layer moved from 10 hPa to 5 hPa. Prognostic precipitation without advection of rain (q r ) and snow (q s ). Tiedtke convection scheme replaced by Bechtold scheme. Variational soil moisture assimilation scheme (SMA). GME 30 km / 60 Levels

14. 07.-11.09.2009 11th COSMO General Meeting - Offenbach, Germany 14 GME data volume to be transferred will increase by a factor of at least 2.7 = (60/40) *(256/192) 2. Including rain (q r ) and snow (q s ) in the initial and lateral boundary data will increase the factor to about 3.3. This might imply an increase of the Internet connection bandwidth at the NMHS receiving GME data! The improved quality of GME will lead to an improved quality of the COSMO-Model forecasts, especially for near surface weather conditions. Impact on Users of GME Data

15. COSMO Web Page

16. 07.-11.09.2009 11th COSMO General Meeting - Offenbach, Germany 16 My place in COSMO Web “chain” My place in COSMO Web “chain” Status of COSMO WEB PP leaders WG coordinators others Cosmin Barbu Theodore Andreadis E-mailsE-mails, FTP Documentation Scientific papers Suggestions HTML codeCOSMO Web Server (Next Slides: Courtesy of Cosmin Barbu)

17. 07.-11.09.2009 11th COSMO General Meeting - Offenbach, Germany 17 Common overview Common overview What pages can be found on the web? www.cosmo-model.org General information about COSMO (structure, meetings, events, co-operations) Documentation about COSMO model and model related Information about COSMO tasks (PP projects, Work Group activities) User support (training, software) Links to specific activities Status of COSMO WEB

18. 07.-11.09.2009 11th COSMO General Meeting - Offenbach, Germany 18 Work from last year Work from last year What pages has TO BE UPDATED? PP & WG pages (continuous work) + add new web pages for the new PPs that will come The minutes of different meetings The operational setups and namelist pages (for example: Romanian case…) COSMO News Letter No. 10 Presentations of User Seminar, CLM training and workshops planned for 2010 Update COSMO collaborations and COSMO model description web pages What pages has TO BE UPDATED? PP & WG pages (continuous work) + add new web pages for the new PPs that will come The minutes of different meetings The operational setups and namelist pages (for example: Romanian case…) COSMO News Letter No. 10 Presentations of User Seminar, CLM training and workshops planned for 2010 Update COSMO collaborations and COSMO model description web pages Work for next year Work for next year Status of COSMO WEB

19. Model Documentation COSMO Newsletter COSMO Technical Reports

20. 07.-11.09.2009 11th COSMO General Meeting - Offenbach, Germany 20 Model Documentation Dynamics and Numerics, Physics, Assimilation: –no updates have been done (at least none have been reported) User Guides for INT2LM, COSMO-Model: –Updates for the new / changed Namelist variables Documenting the procedures for INT2LM has started because of the Interoperability Programme

21. 07.-11.09.2009 11th COSMO General Meeting - Offenbach, Germany 21 COSMO Newsletter COSMO Newsletter No. 9 has been published in December 2008

22. 07.-11.09.2009 11th COSMO General Meeting - Offenbach, Germany 22 COSMO Technical Report TR No. 12: Adriano Raspanti: Final Report on Priority Project VERSUS (Verification System Unified Survey) TR No. 13: Chiara Marsigli: Final Report on Priority Project SREPS (Short Range Ensemble Prediction System)

23. 07.-11.09.2009 11th COSMO General Meeting - Offenbach, Germany 23 THE END Thank you for your Attention