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COSMO/CLM/ART Training Course

The 11th COSMO/CLM/ART Training-Course took place from 12th to 16th March 2018 in the Meteorological Training Centre in Langen near Frankfurt/Main. The course was targeted towards new users from universities and research institutions (PhD-students, postdocs, etc.), from COSMO members and from other National Weather Services (NWS). We invited students and scientists interested in working with COSMO / COSMO-CLM / COSMO-ART to participate in this Training Course.

Schulungsfoto_TR18

The course duration was 1 week. It was devoted to provide basic training on the theory and usage (practical exercises) of the model in NWP and RCM mode as well as for idealized cases (ITC).

 

We were pleased to announce that an optional introductory course on compiling and running with the new accelerated dynamical core was held as part of the COSMO / CLM / ART Training Course 2018.
The (C++) accelerated dynamical core is a new component of the COSMO model that can be used to run faster on traditional CPU system and which is required to run the model on heterogeneous GPU systems.


There were no separate courses on COSMO-ART and the community land model (CLM) in RCM this time. 

 

blue arrow  Invitation and program

 

blue arrow The course materials of the latest course can be found below.

  

Generally, the course consists of theoretical lessons and practical exercises.

 
During this week, Lectures on the different components of the model (dynamics and numerics, physical parameterizations, data assimilation) are offered by the model developers with emphasis on standard applications. In addition, there are two theoretical lessons with parallel presentations for NWP (Data Assimilation and Verification) and Climate (Dynamics on long time scales and Evaluation).

The practical exercises give the opportunity to compile the programs, run the model and analyse the output of NWP and RCM runs using standard scripts. They are offered in parallel for three different groups:

  1. NWP research applications, and
  2. climate research applications.
  3. Additionally, a special exercise will be devoted to idealized simulations.

Please note that we expect a certain familiarity with Fortran 90/95/2003, with the basics of command line driven usage of a Unix / Linux system and with some basic tools (shell-scripting, emacs, vi, ...). If you are not yet familiar with the latter, you can find links to some introductory tutorials under "Additional Material" below.

 

In case of further question, please, contact COSMO-CCLM.Training@dwd.de.

 


 

Material from COSMO/CLM/ART Training Course 2018

The 11th COSMO/CLM/ART Training took place from 12th  - 16th March 2018 in the Meteorological Training Centre in Langen near Frankfurt/Main. The course was targeted towards new users from universities and research institutions (PhD-students, postdocs, etc.), from COSMO members and from other National Weather Services (NWS) - COSMO licensees or developing countries - who are running the model operationally. We invited students and scientists interested to work or already working with COSMO/ CLM to participate in this Training Course. Gruppenfoto_TR18

 

The COSMO-Model together with the preprocessing package is a state of the art, unified, nonhydrostatic model system for simulating the processes of the atmosphere, for numerical weather prediction (NWP), regional climate modelling (RCM), and dispersion modelling (ART - Aerosol and Reactive Trace gases). The COSMO-Model in RCM mode allows for coupling of the Community Land Model via the OASIS coupling software, as an alternative soil- and vegetation model to the standard TERRA_ML module.

Lectures on the different components of the model (dynamics and numerics, physical parameterizations, data assimilation) have be offered by the model developers with emphasis on standard applications as well as idealized simulations. The practical exercises offered the opportunity to compile the programs, run the model and analyse the output of NWP-, RCM- and ART runs using standard scripts.

 

The course was devoted to provide a basic training on the theory and usage of the model in NWP and RCM mode as well as in an idealized framework. Some extra lessons (see below) were given on Friday afternoon March 16th, 2018.

blue arrow More informations can be found here

 


 

Training materials

 

I. Theory Lessons (THE)

 

1. Model Overview by Schättler (Presentation)

2. Dynamics and Numerics by Baldauf (Presentation)

3. Physical Parameteriazations

4. Verification for NWP by Fundel (Presentation)

5. Data Assimilation for NWP by Schraff (Presentation)

6. Dynamics on long time scales by Will

7. Evaluation of CLM runs by Anders (Presentation)

8. Aerosols, Clouds and Radiation by B. Vogel et al. (PresentationI/PresentationII)

 

II. Practical Exercises

The schedule of the practical exercises is included in the invitation and the attached program. The COSMO_tutorial describes the compilation of the source code of the model, the structure of the required input data, and several options for running the model in the NWP-mode and in the climate-mode. The tutorial contains descriptions of exercises, tips for troubleshooting and data visualization of the model output in the GRIP and NetCDF formats. Additional exercises are offered for advanced users.

 

The practical Exercises have been coordinated by the following colleagues:

 

NWP-team: U. Schättler, D. Rieger, M. Junk

RCM-team: B. Rockel, M. Tölle, C. Steger, I. Anders, A. Will

ART-team: B. Vogel, H. Vogel, K. Deetz, S. Gruber

ITC-team: M. Baldauf, U. Blahak


0. Tutorial

1. NWP: Installation of the Model System (Presentation) U. Schättler / D. Rieger/ M. Junk

2. NWP: Preparing external, initial and boundary data - Running INT2LM (Presentation) U. Schättler / D. Rieger/ M. Junk

3. NWP: Running the COSMO-Model in NWP- / Climate-Mode (Presentation) U. Schättler / D. Rieger / M. Junk

4. NWP: Visualization and analysis of GRIB / NetCDF Files (Presentation) U. Schättler / D. Rieger / M. Junk

5. NWP: Trouble Shooting in NWP- /Climate-Mode (Presentation) U. Schättler / D. Rieger

6. Individual exercises

7. Running Idealized Cases (Presentation, Documentation, Help on runscript framework for real cases and idealized casesM. Baldauf, D. Rieger / U. Schättler / U. Blahak

8. Accelerated dynamical core (optional)

III. Configuration of the model system

 

The COSMO model system has more than 150 configuration parameters which control the model physics, dynamics and input/output. Several evaluated standard configurations are offered for the COSMO-CLM setup (see the above RCM presentation under 7.).

 

All namelist parameters are documented in the User Guides for COSMO and INT2LM. There is also the namelist tool, which offers powerful tools for namelist documentation, configuration comparisons etc.

 

IV. Additional Material

1. Additional namelist documentation

2. Extended Model Documentation

3. CCLM Starter Package (logged in members only)

4. Please revise your unix skills, e.g.

4.1 Unix tutorial of Univ. of Surrey:http://www.ee.surrey.ac.uk/Teaching/Unix/unixintro.html

4.2 Unix tutorial of DWD-KU: (pdf)

4.3 Unix command overview for beginners: http://www.cheat-sheets.org/saved-copy/fwunixref.pdf

 



 

blue arrowPrevious training course (archive, login necessary)

 

http://www.cosmo-model.org/content/model/documentation/core/int2lm_2.05.pdf



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