1. Status of the COSMO-Software and Documentation
COSMO Working Group 6: Reference Version and Implementation
Working Group Coordinator: Ulrich Schättler

2. Contents Developments in 2009/2010 Plans for the Near Future
Model Documentation
COSMO Newsletter
COSMO Technical Reports
COSMO General Meeting 2010

3. Developments in 2009 / 2010 COSMO-Model versions Version
Implementation Date
Status
4.9
released
4.10
tested
4.11
4.12
4.13
4.14
in VCS (at DWD)
COSMO General Meeting 2010

4. COSMO-Model 4.10 / 4.11 (released)
Dynamics:
Corrected use of cloud ice tendency from Tiedtke scheme in RK
Option for generalized Asselin-Filter
Option for preventing cold pools in steep valleys (ltadv_limiter) in combination with theta advection (itheta_adv=2) only
Option for selecting bottom boundary condition for vertical velocity
Option for reference atmosphere with constant Brunt-Väisälä frequency for idealized cases only
COSMO General Meeting 2010

5. COSMO-Model 4.10 / 4.11 (released)
Physics
New sea-ice scheme
New multi-layer snow model
Changes to TKE-scheme
implicit vertical diffusion; 3D and horizontal correction of windshear production; separate horizontal shear mode; wake turbulence due to SSO; stability corrections for turbulent length scale
Radiation
New optional aerosol climatology
New external parameters for aerosol and surface emissivity
Soil-Model
New optional external parameter for minimum stomata resistance of plants
COSMO General Meeting 2010

6. COSMO-Model 4.12 (tested) Dynamics
Modifications to bottom boundary condition
Modifications to horizontal diffusion:
Removed the 2D mask field; diffusion factors for interior and boundary zone
Treat diffusion of pressure now separate from temperature
New routines to compute potential vorticity for output
Physics
Modifications to sea-ice scheme and multi-layer snow model
Latent Heat Nudging
Reintroduction of spatial quality function
Generalisation of the use of radar observation input frequency
More robust check in input of radar observations
COSMO General Meeting 2010

7. COSMO-Model 4.13 (released) / 4.14 (in VCS)
4.13 ( )
Technical modifications to prepare for a new source code control system (SVN)
Introduction of an info-module which gives information about the binary, compiler options, etc, for every model run
Reconstruction of the Makefile: put Fopts, ObjFiles, ObjDependencies to separate files and keep extra files for every compiler in new directory LOCAL
4.14 ( )
Microphysics: Take density correction of terminal fall velocity into account. This leads to an increase of sedimentation velocity in the atmosphere
COSMO General Meeting 2010

8. Developments in 2009 / 2010 INT2LM versions Version
Implementation Date
Status
1.9
released
1.10
1.11
in VCS (at DWD)
1.12
COSMO General Meeting 2010

9. INT2LM 1.10 (released)
Option lum2lm to process data from the Unified Model (UKMO)
Option to interpolate t_ice and h_ice from GME grid (only)
Option to compute FLake cold start variables
Decomposition independent computation of interpolation weights for reproducibility
Note: There still is a reproducibility problem for the „match“ interpolation of surface / soil variables for isolated land- or sea-points
COSMO General Meeting 2010

10. INT2LM 1.11 / 1.12 (in VCS at DWD) 1.11 (23.04.10)
Technical modifications to prepare for a new source code control system (SVN)
Introduction of an info-module which gives information about the binary, compiler options, etc, for every model run
Reconstruction of the Makefile: put Fopts, ObjFiles, ObjDependencies to separate files and keep extra files for every compiler in new directory LOCAL
1.12 ( )
Possibility to switch the reference atmosphere in the option llm2lm
Vectorization of subroutine moist-split
COSMO General Meeting 2010

11. Plans for the Near Future
Technical
Work
Status
Reconstruction of mpe_io
Prototype available
Implementation of ifdefs for external libraries
not started
Choice of output format for every Namelist group
Implementation of grib_api
started for INT2LM
New Physics Interface
Prototype for Microphysics
Semi-Technical
COSMO-ART for Runge-Kutta
under development
2-moment Microphysics
Generic treatment of idealized cases
Implementation of generic tracer variables
needs coordination
Tile / Mosaic approach
prototype available; definition of fluxes?
Full 3D strang splitting
implemented at MCH; should be discussed in WG2
OASIS
prototype for OASIS 3.0; new work for 4.0
Urban Module
technical difficulties
COSMO General Meeting 2010

12. Plans for the Near Future
Update COSMO-Model with CLM (cosmo_100614_4.14_clm_1)
Update INT2LM with CLM (int2lm_091216_clm_4)
New release of COSMO-Model and INT2LM in autumn including …?
Depending on the outcome of the discussion about Source Code Management
COSMO General Meeting 2010

13. Documentation Model Documentation
Dynamics and Numerics, Physics, Assimilation:
no updates have been done (at least none have been reported)
but: work in progress for Runge-Kutta Documentation
User Guides for INT2LM and the COSMO-Model have been updated to the latest versions in paper form. The web page tool has not been updated.
COSMO General Meeting 2010

14. Documentation
COSMO Newsletter No. 10 has been published in January 2010 with (only) 10 contributions
But we had 6 new Technical Reports: TR
COSMO Priority Project "Further Developments of the Runge-Kutta Time Integration Scheme" (RK); Final Report
COSMO Priority Project "Tackle Deficiencies in Quantitative Precipitation Forecast" (QPF); Final Report
COSMO Priority Project "INTERP"; Final Report
Description of some convective indices, implemented in the COSMO model
Statistical Analysis of high-resolution COSMO Ensemble forecasts, in view of Data Assimilation
Seven years of activity in the field of mesoscale ensemble forecasting by the COSMO-LEPS system: main achievements and open challenges
COSMO General Meeting 2010

15. Thank you very much for your attention 06.09.2010
COSMO General Meeting 2010