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cesm2

  1. N

    supported configuration or compset without seasonal cycle

    I try to fully remove the seasonal cycle for an uncoupled run. I know how to do that for SST by pointing to a new SST file. In practice, I must hand‐edit dozens of files (atmosphere, land, aerosols, radiations, etc.) to replace them with constant fields. And I felt this way to be error‐prone...
  2. J

    CESM2 Pacific Pacemaker materials

    I'm currently working on replicating the CESM2 Pacific Pacemaker Ensemble and am attempting to download the example POP grid definition file and the Python script used to generate the mask (in Step 1). When I click the provided link, I receive the following: Unauthorized: This server could not...
  3. C

    ERROR: lnd_export ERROR: One or more of the output from CLM to the coupler are NaN

    Hello, CESM team! Recently I started BSSP126 runs with my own landtimeseries data.I checked the sum of PCT_NAT_PFT is 100, also the sum of PCT_CFT. However, my simulations stopped in 2026 with the error message as below. My version is release-2.1.3, and the resolution is 0.9x1.25. I...
  4. S

    Calculating monthly mean from daily CESM2 output in CMIP6

    Hello, Since some CESM2 variables (e.g., ta, ua, va) have data missing for table_id = Amon and expt = hist_aer, would it be okay for me to calculate the monthly means from the daily data and use that (since daily data is available), or is that incorrect? I am using monthly data for these...
  5. N

    model output SST different from the prescribed

    I looked at a run's prescribed SST anomalies and model output TS anomalies (ocean grids only). I noticed that they are different; the structures are largely the same, but the values have hemispheric shifts compared to the prescribed SST anomalies. I'm aware that there's a diddling procedure for...
  6. J

    CESM.EXE runs but does not finish, does not output log files

    Hello. I am using CESM 2.1.5 and am having difficulty getting cesm.exe to run as ported to my machine. I have not made any code changes or namelist changes. I created the case with: ./create_newcase --case f2000climo_testcase --compset F2000climo --res f09_f09_mg17 --mach lake I have set...
  7. F

    there are somthing wrong with ./case.build when i try to transplant from x86 to arm64

    Dear managers As mentioned above.im try to transplant cesm on a arm64 system. So im using GNU compiler rather than intel. My CESM version is 2.2.0 Before make the case, i modified xml file in machines eg. config_machines.xml config_batch.xml config_compilers.xml (.xml was transfered to .txt for...
  8. J

    An error happened when submitting the case: problem on read of megan_emis_nl namelist in shr_megan_readnl

    What version of the code are you using? CESM2.2.2 Have you made any changes to files in the source tree? See my xml attached to this thread, mach "zhiz". Describe every step you took leading up to the problem: ./create_newcase --case heavyrain.FC2010climo.f19_g16 --compset FC2010climo --res...
  9. J

    What's wrong with my cmake?

    What version of the code are you using? cesm2.2.2 Have you made any changes to files in the source tree? As attached files including .xml, see machine 'zhiz' Describe every step you took leading up to the problem: ./create_newcase --case heavyrain.FCSD.f09_f09_mg17 --compset FCSD --res...
  10. C

    When starting CAM, a NetCDF error occurred.

    Hi, CESM team. I am using CESM 2.1.3 and running the BSSP126 scenario. The setup command I used is: When submitting the case, I encountered the following error: I have attached the `cesm.log`, `cpl.log`, and `atm.log` files for reference. Here are my attempts: Based on previous posts, I...
  11. C

    Dynamic annual land use adjustments in CLM

    Hi, CESM team! I'm a bit confused about how to adjust the forest Fraction annually. In CESM, there are PCT_NATVEG and PCT_NATVEG_PFT. As far as I understand, PCT_NATVEG is the land use data determined at the start year when CESM is initiated(in fsurdat ). The landtime series file only contains...
  12. C

    Use of the CLM land use tool to create land time series data in standard CLM format

    Hi,everyone! I have recently generated land use data for the years 2015–2100. My data format is similar to LUH2, but the land unit in my data represents the area (in square kilometers) of different land types within each grid cell. My land use data includes seven plant functional types (PFTs)...
  13. R

    The model did not stop properly after the initial run

    What version of the code are you using? CESM2.2.2 Have you made any changes to files in the source tree? No Describe your problem or question: I am trying to run a slab ocean run with CLM5 (BGC-CROPS) using/modifying the compset ETEST as given below. ./create_newcase --case...
  14. N

    Accessing ftp and svn cesm2 input databases

    To Whom this may concern, I previously was able to access this website (https://svn-ccsm-inputdata.cgd.ucar.edu/trunk/inputdata/) to manually download missing input files, when the ./check_input_data --download wouldn't connect to my network through CESM2. That website appears to be...
  15. P

    Request for CESM2 Data: Historical and Future Scenarios

    Hello, I am a PhD student working on research that requires CESM2 model data for the Northern Great Plains. My focus is on understanding precipitation variability and its drivers under both historical and future scenarios. Ideally, I need the following variables at monthly temporal resolution...
  16. I

    CLM5.0 Build Error.

    Hello Discuss CESM Community, I am clonning CLM 5.0 to my ubuntu-latest system. For which I have followed the below steps. 1st git clone -b release-clm5.0 GitHub - ESCOMP/CTSM: Community Terrestrial Systems Model (includes the Community Land Model of CESM) clm5.0 cd clm5.0...
  17. xnnzka

    Running BHIST experiment with error: pio_die:: myrank= -1 : ERROR: nf_mod.F90: 730 : NetCDF: Variable not found

    Hello, everyone, I need your help! My cesm version is 2.2.0. I want to utilize CESM2LENS restart file to exercise the branch type run, but I received this error in cesm.log: -------------------------------------------------------------------------- Opened existing file...
  18. P

    Short term archiving stores history files twice - in component/hist and in rest/

    What version of the code are you using? release-cesm2.1.5-0-g7a6c5b0 Have you made any changes to files in the source tree? no changes Describe every step you took leading up to the problem: .create_newcase --case 0502-01-01_to_0502-01-30 --res f09_g17 --compset B1850cmip6 --mach levante...
  19. M

    Is it possible to run CESM2 with a 1 degree atmosphere and a 0.25 degree ocean ?

    Dear all, For a project in which I use CESM 2.1.3 I tried to set up a Pre-Industrial case with a 1 degree atmosphere and a 0.25 degree ocean. When I look for the available grids with command: ./query_config --grids the model claims that there is such a resolution given by the alias...
  20. N

    Add radiation effects to new aerosol species

    Hi everyone, Following this page, I've successfully added new chemical species and reactions (with rates) to the chem_mech.in file, and mapped dry/wet deposition rates to the closest existing species for simplicity. Now, I’m looking for a quick way to map the radiation properties and modes of...
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