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clm5.0

  1. C

    How to set up to run 2014 in Fclimo2000

    Hi,all! I've been having some problems lately. (1)Why did we set up Fclimo2000, to run 2000 alone, and are these kinds of results meant to explain anything? (2)If I want to run 2014 on its own, it's like "Fclimo2014".How do I accomplish this? (3)If I only change the surface data for the year...
  2. H

    default root zone depth of the CESM

    Hello, I'm a new user and want to use the output of the CESM with the CLM5. I just have a simple question about the variable 'BTRAN2', which is the root zone soil wetness factor. I just want to confirm the depth of the root zone in the CESM is 0-0.5m(as written in Lawrence et al. 2019 or...
  3. J

    How to modify the albedo data in usr_nl_cam?

    I want to modify the albedo of certain regions in the coupled model. Is it feasible to specify the values of albedo using grid points in user_nl_cam?
  4. J

    How to transplant my model to Derecho

    Hi, We are developing our own model based on CLM5.0, and we want to move our work from Cheyenne to Derecho. So I'm wondering how can I define derecho as a new machine in my current cime tool? Thank you! Best,
  5. X

    The problem of understanding output variables of CLM.

    Hi~ I was running an I2000CLM50CN experiment recently and had a problem with the results. I first ran this experiment for ten years, and found that FCO2 presents a process from negative to positive. FCO2 is the value CO2 flux to atmosphere (+ to atm), so I think it is a net CO2 flux. While soil...
  6. X

    How to modify the source code?

    Hi, Recently I have been trying to modify some of the CLM code to see the impact on the results. I was interested in soil carbon, so I tried to deal with the decomposition of soil carbon, and I did a simple test. Created a CASE - I2000Clm50Cn first, and then I copied...
  7. A

    Is it possible to change grid resolution and eco-physiological parameter values for I2000clm50FatesCruRsGs?

    Hello everyone, I have recently started to work on CESM and so far I have been able to port CESM to my machine. My prime objective is to work on GPP using CLM compset I2000clm50FatesCruRsGs as I am interested in DGVM. However, I see that it is a defined compset but not a tested one. So I have a...
  8. H

    Questions about creating surface data

    Hello everyone! According to the CLM5.0 user's guide, I am trying to create my own surface data.First, I generate a SCRIPgrids based on the raw data and get 3 files: SCRIPgrid_CMFD_BNF_nomask_c231117.nc SCRIPgrid_CMFD_BNF_noocean_c231117.nc...
  9. jgx

    How to use own raw data to create surface data

    Hi everyone, According to the CLM5.0 user's guide, If I want to create my own surface data, I need to first generate a SCRIPgrids based on the raw data, then use mkmapdata.sh to generate corresponding map files, and finally use mkserfdata_map generate surface daataset. What I want to know is, if...
  10. K

    An error when I set "use_soil_mositure_stream=.ture. "

    Hi everyone, I would like to investigate the role of soil moisture in the influence of the Atlantic Multidecadal Variability (AMV) on the Eurasian climate. Therefore, I would like to design an experiment with prescribed postive-AMO SST pattern in Northern Atlantic and climatology of soil...
  11. X

    what is the diffrence between TSKIN from clm and TS from atm

    Hi, everyone, I have finished a simulation using FHIST for periods 1990-1994, i have checked the output of tempeature variable, There is TSKIN in clm and TS in atm, the TS is described as the radiation temperature,but the TSKIN is also the radiation tempeature? I am not sure their differnce, i...
  12. K

    Soil-moisture nudging experiment

    Hi, I am trying to nudge soil moisture to climotology in F2000climo in CESM2. I only found the Nudging Experiment example (U, V, T, Q) in CAM6.3 User guide. How can I perform a Soil-moisture nudging experiment? I think this experiment should be based on the CLM%, but I haven't found any...
  13. K

    Soil-moisture nudging experiments in CESM2

    Hi, I am trying to nudge soil moisture to climotology in F2000climo in CESM2. I only found the Nudging Experiment example (U, V, T, Q) in CAM6.3 User guide. How can I perform a Soil-moisture nudging experiment? I think this experiment should be based on the CLM%, but I haven't found any...
  14. H

    Error when use ./check_input_data --download

    My machine is a centos7 supercomputer at NIES (Japan) with PBS batch sytem. I executed the following commands with all commands executed successfully without errors. ./create_newcase --case I1850CLM50_001 --res f19_g17 --compset I1850Clm50Sp --mach sx-aurora ./case.setup ./case.build After...
  15. D

    DATM setting for CLM compsets

    Hello, everyone. I been confused with the DATM setting we have been used in the hist or 1850 or 2000 compsets. The question is: does datm stream file will automatic align with the option of "RUN_STARDATE"? For example, if I set the RUN STARDATE = 2001, but the stream didn't change, then what...
  16. D

    Can we use the datasets of cmip6 as the datm sources of the clm and mosart input data forcing?

    Hello everyone, I am going to run a sim_year range without the datm7 data support by an "I" compset, such as the years like 1850-1860. Can I use the cmip6 historical experiment data as the datm input for the specific case? For example, the datm forcing data usually contains precipitation...
  17. J

    How to fix a certain type of PFT in CLM5.0

    Hello everyone! Thank you for seeing my questions. My case is IHistClm50SpCru (HIST_DATM%CRUv7_CLM50%SP_SICE_SOCN_MOSART_CISM2%NOEVOLVE_SWAV). I want to research how the land cover type influnce the soil temperature, so I want to fix one type of PFT and compare it with default test. But the PFT...
  18. L

    Missing File: "env_mach_specific.sh"

    Hello everyone! I am running CLM5 for a single point in my computer and I have read the guide 1.6.3.5. Example: Creating a surface dataset for a single point. When compile the "gen_domain", I used the following command: ../../../configure --macros-format Makefile --mpilib mpi-serial --machine...
  19. MrIgnition

    Can my forcing have inconsistent timesteps?

    Hi, I like to use CMIP 6 projections in CLM5. My finding is that some of the data belonging to one scenario and from one global model may have inconsistent temporal resolutions. For example, precipitation can be 6 hourly, temperature 3 hourly, and incoming solar radiation hourly. Can I put files...
  20. B

    CLM5.0 vs. CTSM5.1 in CPLHIST mode

    Hello, I have successfully run CTSM release-clm5.0 in CPLHIST mode in the past. When I apply the same methods to ctsm5.1.dev133, I get the following error for cpl files after submitting the case: Model datm missing file file730 =...
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