clm

Hi, all, I used to implement a forest cover map, for instance, forest layer from ESA, into landusetimeseries by python, just manully calcuate the PCT_NAT_PFT and other PCT_xx change. Not sure if there is other more formal way to obtain the goal from NCAR side, like just put the forest layer...

Hi, CESM team. I ran the BSSP126 component in CESM. My CESM version is 2.1.3. I'd like to know how to view the temporal dynamics of carbon emissions resulting from land-use change. I haven't been able to locate the corresponding variable name—or have I overlooked it?

What version of the code are you using? CESM2.1.3 Have you made any changes to files in the source tree? sed -i "$ a use_soil_moisture_streams = .true." user_nl_clm sed -i "$ a stream_fldfilename_soilm =...

Hi all, I’m running a regional RegCM-CLM4.5 (CN + nitrification/denitrification enabled) simulation over Asia. After a long spin-up, the 2020 warm-season soil N₂O emissions from both nitrification and denitrification become near zero over Southeast China (105–125E, 18–32N), while North China...

Hi, I am conducting an experiment to examine the impact of artificially altering the albedo of the ground in a specific area on the CESM fully coupled. The soil cover is irrelevant on this experiment. However, I’m struggling to create a new SOIL_COLOR field. Currently, the model uses 20...

Dear CESM users, I am using the CESM2.2.2 (last pulled updates in april 2025). I am planning to run experiments with FHIST component set where atmosphere component see the CO2 concentration as historical and a fixed CO2 concentration (say 284.7ppm) for the land (CLM) component? I believe...

Hello everyone, I am a hydrogeologistn and I am researching about paleorecharge rates. I would like to rise a question about the CCSM3, specifally the version of the CLM used there, which I think it corresponds to the CLM3. This has been used to run transient simulations of paleoclimate since...

Hi all! I have a question regarding the 'mapping' or 'translation' between FATES PFTs from the fates_params_default.nc file and the CLM PFTs from the surface data input file. The PFT indices of FATES' parameter file is different than CLM's PFT indices in the surfdata. For example, in the...

What version of the code are you using? CESM2.2.2, CAM6 Have you made any changes to files in the source tree? Changes in nudging and CLM Describe every step you took leading up to the problem: I need to use ERA5 re-analisys files to nudge aerosols. Describe your problem or question: I...

Hi all, I am running the I2000Clm60SpCrujra case, but when I try to submit the job using ./case.submit, I encounter missing input files. Specifically, the following paths or files do not exist, and I cannot download them...

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...

I have a I4804CLM45-compset CESM1.2.2 case with basically default settings that ran fine. However, when I create an identical case, only adding user_datm.streams.txt.CLMCRUNCEP.Precip, user_datm.streams.txt.CLMCRUNCEP.Solar and user_datm.streams.txt.CLMCRUNCEP.TPQW to the case folder, cesm_setup...

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...

I have created a new compset with the following definition in config_compsets.xml: <compset> <alias>IGSWM2000CNPECACNTBC</alias> <lname>2000_DATM%GSWP3v1_CLM%CNPECACNTBC_SICE_SOCN_MOSART_SGLC_SWAV</lname> </compset> <compset> <alias>IGSWM2000CNPRDCTCBC</alias>...

Hello everyone: Do you know if the length of forcing data will influence the results 'r' ducument when I run with spin-up. What I mean is that if the results I use 20 years and set repeat 100years and 1year set repeat 100years as well are different?

Hi, I am working on spinning up the Plumber 2 flux towers using the BGC mode using CLM5. I plan to spin up each tower for 300 years in AD mode, then 100 years in post-AD mode, following the transient mode. In this sense, I am wondering about the difference between: (a) Activate the...

Hi, In the context of running the Plumber 2 flux towers using CLM5, I am trying to spin up the towers in BGC mode using AD (300 years) and post-ad (100 years). To conduct this, I am using the ./run_towers script: # Run the script to set up the tower sites export tower=AT-Neu ./run_tower...

Dear Community Member, I am running CLM 5 in my CLM 5. Can you please suggest some global spinup files til 2000 or newer for vegetation studies, which support FATES. Thank you so much for your attention.

Hi all, I've successfully ported CESM 2.1.5 to the Compute Canada machines and have been able to run a few simulations. However, I've noticed that the jobs request a large number of resources by default (e.g., 288 cores in 6 nodes). Is there a way to limit the maximum number of nodes or cores...

Hello I’m working on reproducing the Plumber 2 simulations with some changes on the parameter values, but I’m uncertain how the original simulations were spun up. The Plumber 2 webpage (ModelEvaluation.org) mentions that these runs were spun up with the forcing data, but I would greatly...