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  1. W

    Difference between TS (surface temperature, radiative, CAM) and TG (ground temperature, CLM)?

    Hi everyone, I'd like to inquire about the difference between surface temperature (radiative) and ground temperature? The first one is TS from CAM while the second is TG from CLM. More specifically, I am currently using CESM1.2.2 with CAM4 and CAM5. Somebody seems to have asked this before...
  2. X

    gen_domain.F90 make error:macro names must be identifiers

    When I try to get a executable gen_domain file, I entered into following directory and type "make": $CIMEROOT/tools/mapping/gen_domain_files/src So I try to make a macro.make file by typing: ./configure --macros-format Makefile --mpilib mpi-serial and it still displays the error: macro names...
  3. W

    Output of SMB in CLM4.5 F-compset runs

    Hi everyone, I am trying to have CLM4.5 (within CESM1.2.2) output surface mass balance in the Himalayas. However, it seems that CLM in default will only calculate SMB for runs coupled with CISM. One concern is that f05 resolution seems to be unsupported out of box with CESM runs with CISM such...
  4. V

    Build Error for Arctic-Boreal CLM

    Hi, I'm running PTCLM at a site in the Arctic, and I would like to apply the changes outlined in Birch et al (2021), and see what impact this has on the things I'm interested in. The process I have followed so far is as follows; 1. Downloaded the zip file from Zendoto (lmbirch89/CTSM: Arctic...
  5. J

    Modify surface albedo

    Dear CESM team, Hello,I want to modify the surface albedo of some regions, how do I need to modify in the source code. It will be very appreciated if anyone could guide me on how to implement modifications (mentioned above). Thank you very much! Best, jia liu
  6. V

    Changing Q10 in user_nl_clm

    Hi, I'm running PTCLM with the 2000_DATM%1PT_CLM50%BGC_SICE_SOCN_MOSART_SGLC_SWAV compset, and I want to change the Q10 value for frozen and unfrozen soils. I can change the q10 for frozen soil by adding froz_q10=newvalue to the end of my user_nl_clm file, but when I add Q10=newvalue (to...
  7. L

    which .f90 file is to read netcdf file

    I am a new for CLM and CESM. Now I want to read a new netcdf file(.nc) to memery to involve in CLM compute. So I want to know which .f90 file is to do it. Thanks! It seems that the ncdio_pio.f90 file is to write the .nc file, but I want to read .nc file.
  8. D

    case.build error

    I am trying an out of box CLM run from 1.5.5. Spinup of CLM5.0-BGC-Crop — ctsm CTSM master documentation proceeded with ./case.build then received build error Building case in directory /home/clm/cime/scripts/BGC_spinup sharedlib_only is False model_only is False Generating component...
  9. X

    how to output a 3D(pft, lat, lon) local variable as histfield and read it again

    Hi, I want to output a 3D(pft, lat, lon) local variable as histfield and read it again. for example, the local variable, named "rh_can" in subroutine PhotosynthesisHydraulicStress of PhotosynthesisMod.F90. the version of CESM is 2.1.3. the script of creating case is: ./create_newcase --compset...
  10. A

    How to Calibrate Model?

    Dear All, Here I am working on Hydrological models. So I am simulating the ET, Runoff, Soil Moisture etc. variables. Runoff and Soil moisture I am getting good. But I am facing a little bit problem in Et simulation. I am working Over Indian regions. But getting ET hight in May that is not...
  11. U

    CNDV spunup and its output

    Hi, I have several questions about CNDV. 1) In the CLM4.0 User's Guide Documentation example4-4, the modal provide spunup files. Does this file always exist in CLM? 2) Do spunup files get the CLMCN model to a steady state? 3)Following the steps given in Example4-4, I calculated 200 years, ①but...
  12. W

    what is the difference between input data and forcing data for a coupled model run in CESM1.2.2

    Running a coupled model with F compset and two different CAM physics downloaded its input data from the server. Now, i have few questions for some clarification before analyzing them. 1- Suppose my model is already in a balance state with appropriate recommended spin-up, do i need any extra...
  13. T

    Running CLM single-point mode with net radiation data instead of incident solar radiation

    I would like to force my single-point CLM model with net radiation data instead of incident solar radiation data. Can anybody help me how to do that? I have looked through the user giudes, but I do not find the answer. Regards Tanja Denager
  14. A

    Error during Model run clm

    Dear all, I am getting following error. I am running ot for my 1 basin. I have created the data-sets. I have crosschecked land and atmospheric data-sets are in same dimension. but getting this error how we can resolve this please help me regarding this. Error: (full log file has been enclosed...
  15. A

    Error during model compiling (clm 3.0)

    Dear all, facing problem in compiling the model. here i have enclosed the log-file and terminal error screen shot. Please help me regards. Anuj Prakash
  16. A

    #GNUMAKE error (CLM 3.0)

    Dear all, I am working over clm 3.0 model and trying to setup the model. I am facing problem in model compilation I getting error when i am running make file using gnumake, gmake etc. Here i have attached a screenshot of problem. Please help me regarding. Thanks Anuj Prakash
  17. sacks

    CESM2.0.z: In transient cases without prognostic crops (including satellite phenology cases), %crop stays fixed at 1850 values

    In CESM2.0.z: In transient cases without prognostic crops, %crop stays fixed at 1850 values, rather than changing each year. This affects CLM45 and CLM50 transient compsets without 'Crop' in their name; specifically the following (compsets in bold are ones that were listed as scientifically...
  18. erik

    CESM1.2.z: for CLM4.5: Important Bad interpretation of maximum rate constant for soil water content in SoilbiogeochemDecompCasc

    The following reference was interpreted wrongly in terms of the maximum rate of soil respiration. This issue goes back to the introduction of CLM4.5 ! calculate the rate constant scalar for soil water content. ! Uses the log relationship with water potential given in <br />! Andren, O...
  19. A

    CESM1.2.z - Minor -- lake hydrology bug when sudden intense snowstorm occurs preceeded by warm weather.

    Affected Releases - CESM1.2.z(Bugzilla 1717) For CLM4.5, I found one error that is not just a typo but also shows up in a rarely exercised portion of the code (most likely a sudden very intense snowstorm-- ~8 cm/hr -- preceded by warmer weather) in SLakeHydrology, where the top lake layer...
  20. A

    CESM1.2.z - Minor -- false overestimation of fire C emissions for natural vegetation PFTs without transient land-use change.

    Affected Releases - CESM1.2.z(Bugzilla 1719) Details and a fix are included in the bugzilla report.