GEM  -  UQAM style


GEM is Environment Canada and Climate Canada's Global Environmental Multiscale (GEM) model.

If you are a new user of GEM you might first want to read the general introduction to GEMDM.

General help and support about models, libraries, tools and many other interesting information you can also find at RPN.COMM: Community for Mesoscale Modeling.

Other interesting GEM documentation:
  Le Wiki de la SI
  RPN html
  UQAM Wiki

Whenever you hit a page asking for a password, login and password are both 'science'.


Table of contents

  1. GEMCLIM for newbies (MPI, OpenMP)
  2. Rules of Thumb
  3. Config files:
       'configexp.dot.cfg', 'gemclim_settings.nml', 'outcfg.out', 'physics_input_table'
  4. Input files:
       geophysical fields, analysis, climatology, SST and sea ice, ozone, pilot file
  5. Model output
       Variable dictionaries, 2- and 3-D output, time series, pilot files, restart files, listings, jobs, ...
  6. Radiation & Clouds
  7. Model (and source code)
  8. RPN Standard Files, look at, read, write, modify
       voir, xrec, r.diag, editfst, pgsm, fst-functions, r.fstliste, cmcarc,
       r.date, newdate, r.ip1, convip
       GRIB2 converter
  9. Start running GEMCLIM for rookies
  10. Set up a new grid
  11. Partition a grid (Ptopo_npexy, Ptopo_nblocxy, checktopo)
  12. Grid specifications
  13. Submit a job (soumet, qstat, qs, qdel)
  14. Create an executable (r.compile, r.build)
  15. Checklists
  16. Troubleshooting (under construction)
  17. Using the Portland Group debugger: PGDBG
  18. References
  19. Presentations: CRCM5_training_1_general.pdf
                              CRCM5_training_2_machines.pdf
                              CRCM5_training_3_model_desc.pdf
                              CRCM5_training_4_practice.pdf
  20. Basic UNIX commands


Author: Katja Winger
Last update: January 2021