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coupler

  1. S

    Questions about land-atmosphere interaction

    Dear all, My research focuses on the climate response to land use, so I mainly modify the surface energy balance in the CLM module and view the output files from the CAM module. However, I forgot to reflect the changes in albedo in the variables ALBD and ALBI which will export to CAM. And I...
  2. C

    Clarification on how models are coupled

    Hi everyone, I am relatively new when it comes to designing and running climate models, so I had a question or two on how CESM2 is coupled. I have tried to read a few papers and the user manuals but they were not very much help. I understand that all of the major components (CAM,CLM,etc) send...
  3. S

    How to change mapping file in cpl setting?

    Sorry I do not find a special forum for coupler , so I sent my problem here. I want to replace the mapping files in CESM2.0, first I change namelist in user_nl_cpl, like this...
  4. M

    Can cpl read in data at runtime ?

    Hello, I am using CESM 2.1.3. In my experiment design, I want the cpl to read in data on the disk to replace the variable value calculated by the cpl. And the replacement should be performed at each flux calculation in the cpl. I know the cpl can output data, but i haven't found any infomation...
  5. M

    How to output high frequency data in CPL

    I am using CESM 2.1.3. I have found how to output high frequency data in CAM, CLM and etc in CESM Tutorial. However, there is no information on how to output CPL variables. As shown in the figure below, I have found some clues on the CESM CPL namelist webpage. I guess the variable names...
  6. M

    Use external shortwave data in CESM2 coupler

    In my experiment, I want to hold the solar radiation using external data. So I plan to use downloaded shortwave (solar radiation) data to overide the model calculation sw value in CESM2 coupler. I found the coupler sw calculation process in subroutine seq_flux_ocnalb_mct in the file...
  7. A

    CESM1.1.z - Limitations with different coupling frequencies for different models.

    Affected Releases - CESM1.1.zFixed in CESM1.2.1(Bugzilla 1740) CESM allows different coupling frequencies for different models. However, there are some limitations. The coupling frequencies are set via the env_run.xml variables *_NCPL. Generally, the atmosphere, land, and ice model coupling...
  8. A

    CESM1.2.z - Problem running with "too many files" for datm for over 83 years.

    Affected Releases - CESM1.2.z(Bugzilla 1339) - Problem running with "too many files" for datm for over 83 years.
  9. A

    CESM1.2.z - Driver needs a different list hardcoded in for hist_a2x3hr_flds

    Affected releases - CESM1.2.z(Bugzilla 1733) -The driver needs a different list of fields so that a case can be run and then use the resulting forcing to drive CLM. The Bugzilla report has more details.
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