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cesm2

  1. A

    recomputing geopotential height after pressure level interpolation

    Dear all, I don't whether this is right thing to do but after interpolating the variables from CESM2 hybrid-sigma levels to pressure levels, should we recompute the geopotential height from the interpolated temperature? Is this recommended?
  2. J

    How can sea-surface-temperature data with daily or even hourly resolution be used as the SST input to the CESM model (in the F-compset)?

    When simulating precipitation after 2015, the model results show that, compared with ERA5, the large-scale summer rain belt over China and adjacent regions is shifted northward, convective precipitation is relatively weak, and the western Pacific subtropical high (defined by the 5880-gpm...
  3. J

    ERROR in ./case.submit

    Dear CESM scientists, I ran CESM2.1.5 on the Intel classic compiler with the following case settings: ./create_newcase --compset IHistClm50BgcCrop --res f09_g17 --case $HOME/cases/testfast --mach mytest --compiler intel --run-unsupported vi env_run.xml # chenge STOP_N and STOP_OPTION to 5...
  4. D

    Checking radiatively active CO2 concentration

    I am a beginner to CESM, and am using CESM2.1.3 to run a CO2 forcing experiment. I would like to increase the CO2 concentration by 0.73% for 190 years to go from 284 ppmv (as set by co2vmr in the restart files) to 1135 ppmv. Can I use the following namelist variables to do so? Any suggestions...
  5. W

    Inputdada can’t be read correctly in CESM2.1.4: NetCDF: Variable not found/Invalid dimension ID or name/Attribute not found

    Hi everyone, I am still working to solve the issue as shown in the last thread(CESM2.1.4 case_run error: without any hist output nc files). I find there may be something wrong about the inputdata used in F2000climo because the cesm.log (also attached) says a lot of message as following...
  6. W

    CESM2.1.4 case_run error: without any hist output nc files

    Dear all, I recently ported CESM2.1.4 to our computer cluster, which has no internet connection. I tried running the F2000climo compset for the test. The case_create/case_setup/case_build/case_submit steps were finished successfully. However, I encountered an error during the case_run step: the...
  7. W

    CESM2.1.4 case_build error:undefined reference to `netcdf_mp_nf90_xxxxxx'

    Dear all, I am porting CESM2.1.4 on a cluster environment. I encountered problems during the case_build stage. The compiler is Intel mpi. I run the code as following: ./create_newcase --case runtestX --mach qhyc --compset X --res T42_T42 ./case.setup ./case.build Error occurred in the step...
  8. K

    ERROR: calendar dates must be increasing when running B2000

    Dear all, I would like to run a fully coupled simulation of CESM 2.1.3 for year 2000. As I did not find a "B2000" compset I created a case based on B1850. I tried to replace "1850" in the long name of B1850 with "2000", and run with the compset with longname...
  9. K

    Errors when running B2000

    Dear all, I would like to run a fully coupled simulation of CESM 2.1.3 for year 2000. As I did not find a "B2000" compset I created a case based on B1850. I tried to replace "1850" in the long name of B1850 with "2000", and run with the compset with longname...
  10. K

    How POP handles land in his SST calculations?

    Dear all, I am confuesd about how POP handles land in his SST calculations. I am using B1850 from CESM2.1.3. I check o2xavg_So_t, which is the SST passed by POP to CPL. I found the value on land as well at 273.15K (see the Fig below). I checked the code in the ocn_import_export.F90 file for...
  11. K

    How do I specify the historical output variables for CPL?

    Hi everyone, I am using B1850 from CESM2.1.3. I want to export the daily SST received by CPL from POP. So, I set AVGHIST_OPTION=ndays and AVGHIST_N=1. With this setup, the model is able to successfully output o2xavg_So_t. However, the model also outputs a lot of variables that I don't need...
  12. nuvolet

    What and where is located the subroutine to generate all the log files in CESM?

    What version of the code are you using? CESM2.2.2 in Derecho Have you made any changes to files in the source tree? Some modification in nudging module Describe your problem or question: What and where is located the subroutine that generates all the log files?.. Thanks
  13. K

    How to design a CESM2.1.3 Wildfire Simualtion?

    Hi everyone, I plan to design a set of experiments using the B1850 compset in CESM2.1.3 to investigate the wildfire. My question is: do I need to make some necessary settings to activate the wildfire simulation? Looking forward to get any useful information. Best regards, KW
  14. K

    Successfull simulations but with negative simulated years / cmp-day in cpl.log

    Dear all, I am doing a a set of experiments using the B2000_CAM5_CN compset in CESM1.2.2. The simulation seems successful, but the simulated years / cmp-day in cpl.log is negative (see the figure below). I'm concerned about the reliability of the simulated data. The mode run script is attached...
  15. K

    Mismatch of input dimension error when hybrid from restart files

    Hi everyone, I plan to design a set of experiments using the B1850_CAM5_CN compset in CESM1.2.2. I got this spun-up restart file b.e11.B1850C5CN.f19_g16.0850cntl.001 from - Revision 70334: /trunk/inputdata/ccsm4_init/b.e11.B1850C5CN.f19_g16.0850cntl.001/0850-01-01. When I restart the model from...
  16. C

    calculate carbon emissions from vegetation fire

    Hi all, I have a simple question: How can I calculate carbon emissions from vegetation fires? For example, in CMIP6, there is a variable called fVegFire, which represents the carbon mass flux from vegetation into the atmosphere due to CO2 emissions from all fires. However, I couldn't find the...
  17. C

    Change CLM50%BGC in BSSP126 to CLM50%SP, set final to landtimeseries file or default input?

    Hello, I have been trying to separate biophysical and biochemical effects using different components in CLM under the SSP126 scenario.My CESM version is 2.1.3 and CLM version is CLM5. I attempted to change the long name of BSSP126 in CESM from BGC to SP and link my own generated landtimeseries...
  18. K

    Confused about hybrid and branch?

    I plan to design a set of experiments using the B1850_CAM5_CN compset in CESM1.2.2. I got this spun-up restart file b.e11.B1850C5CN.f09_g16.005.rest.0501-01-01-00000.tar from the Globus endpoint. The experiment design is as follows: 1. Experiment 1: Restart the model from the above restart file...
  19. J

    Runtime error "free(): invalid next size (normal)" and SIGABRT during CESM2 run

    What version of the code are you using? - cesm2_3_beta17_gui Have you made any changes to files in the source tree? - No Describe every step you took leading up to the problem: - port CESM model to perlmutter - modify config_machines.xml, config_compilers.xml, config_batch.xml, (gnu...
  20. J

    CESM2 run stalls when writing output file: hangs at "Opened file sandbox-case-230-gnu-x2.cam.rh0.0001-01-06-00000.nc to write"

    What version of the code are you using? CESM version: cesm2_3_beta17_GUI Have you made any changes to files in the source tree? No source code modifications Describe every step you took leading up to the problem: Modified config_batch.xml, config_compilers.xml, config_machines.xml with GNU...
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