News Letter No5

Date of publication: April 2005

COSMO Newsletter No. 5 Table of Contents
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01 Introduction 3
02 The COSMO Consortium 5
2.1 General 5
2.2 Agreement 5
2.3 Organizational Structure 6
03 Model System Overview 7
3.1 Short Description of the LM 7
3.2 Data Assimilation 15
3.3 Boundary Conditions from Driving Models 20
3.4 Postprocessing 20
3.5 Data Flow of the LM Package 21
3.6 Documentation 22
04 Operational Applications 24
4.1 ARPA-SIM 25
4.2 DWD 26
4.3 HNMS 28
4.4 IMGW 29
4.5 MeteoSwiss 30
4.6 UGM/CNMCA 34
4.7 NMA 35
4.8 COSMO Limited-Area Ensemble Prediction System 36
05 Changes to the Model System 38
5.1 Major Changes to LM 38
5.2 Major Changes to GME2LM 42
5.3 The new Interpolation Program INT2LM 42
06 Working Groups 44
6.1 WG 1: Data Assimilation 44
6.2 WG 2: Numerical Aspects 46
6.3 WG 3: Physical Aspects 46
6.4 WG 4: Interpretation and Applications 48
6.5 WG 5: Verification and Case Studies 49
6.6 WG 6: Reference Version and Implementation 50
07 COSMO Meetings and Events 52
7.1 Meetings in 2003 52
7.2 Guest Scientists 56
7.3 Internal Visits 57
7.4 Upcoming COSMO Meetings 57
7.5 Announcements 58
08 Results and Methods of Model Verification (Introduction) Author 60
8.1 Progress on LAMI, LM-DWD, aLMo verification over Northern Italy M. Turco, E. Oberto, P. Bertolotto 62
8.2 Verification Results for LM at DWD U. Damrath 72
8.3 Verification of LAMI at SYNOP-Stations P. Emiliani, A. Galliani 77
8.4 High Resolution Verification of Daily Cycle over Switzerland F. Schubiger 88
8.5 Verification of LM-COSMO Model in Poland with SYNOP and Rain Gauge Data K. Starosta, J. Linkowska 94
8.6 Operational Verification of Vertical Profiles at MeteoSwiss M. Arpagaus 102
8.7 Operational Verification of Vertical Profiles at DWD U. Pflüger 106
8.8 Verification of aLMo with SYNOP and GPS data over Europe P. Kaufmann 113
8.9 Vertical Profiles - A Comparison between German, Italian and Swiss Verification P. Kaufmann, M. Arpagaus, P. Emiliani, E. Veccia, A. Galliani, U. Pflüger 118
09 Model Development and Application (introduction) Author 123
9.1 Latent Heat Nudging and Prognostic Precipitation S. Klink, K. Stephan 124
9.2 The Coordinate Transformations of the 3-Dimensional Turbulent Diffusion in LMK M. Baldauf 132
9.3 A new Option for Rayleigh Damping: Preliminary Tests L. Torrisi 141
9.4 Impact of Domain Size on LM Forecast L. Torrisi 145
9.5 A Z-coordinate Version of the Nonhydrostatic Model LM J. Steppeler, et.al. 149
9.6 A new Method for T2M Forecast in Complex Orography Areas D. Cane, M. Milelli 151
9.7 Introducing the Lokal-Modell LME at the German Weather Service J.-P. Schulz 158
10 Collaboration and External Users of LM 160
10.1 International Projects 160
10.2 National Projects and Collaboration 162
10.3 External Users of LM 163
Appendices 166
  References 166
A The GRIB Binary Data Format used for LM I/O 170
B Available LM Output Fields 176
C List of COSMO Newsletters and Technical Reports 182