cesm2

Dear CESM community, We have been trying to set up CESM v2.1.3 on the new system at our institute but we're facing a lot of problems. As it stands now, we are able to create a case and build it successfully. When we submit the job, an error shows up (segmentation fault) in the log files...

Hello, I am attempting to do a branch run off of a CESM2 LENS ensemble (b.e21.BHISTcmip6.f09_g17.LE2-1001.001), but I keep getting the following error when I run it: 1: NetCDF: Variable not found 1: pio_support::pio_die:: myrank= -1 : ERROR: nf_mod.F90: 731 : 1: NetCDF...

Hi, can I change the fsurdat from surfdata_0.9x1.25... to landuse.timeseries_0.9x1.25.... I tried changing it in CESM2.1.3 with ISSP370Clm50BgcCrop compset but encountered some problem: Default: fsurdat =...

Hi all, I'm running CESM2.2.0 and am looking at the effects of land use on BVOC emissions under different climate scenarios. I have generated surfdata files for CLM5 which I thought were prescribing LAI, as they contain the variable 'monthly LAI'. However, when we run experiments with different...

Greetings, I am modifying a module in the CAM6.0 (nudging.F90) and in during the process to build a case I get this message and the case is not completely built. Somebody knows why this directory is not created? Thanks in advance

Greetings, We are trying to make some code modification in some modules in CAM6.3 in order to customize some cases we want to run. The reason we are doing that it is because we need to specify some inputs which are not available as CESM has been built. Therefore, we found that if we want to...

Hi all, I'm working on change land-sea distribution in the CESM2.1.3, I have generate new ocean domain file and land domain file, and mapping files. The error happened in the run time, viewing the cesm log it says: ENDRUN: ERROR: ERROR in surfrdMod.F90 at line 384 ERROR: ERROR in...

Hi all, I'm working with the 1D PFT-level output for CLM5 for the first time. I am interested in plotting a timeseries of some PFT-level variables over my domain. I can see in the variable list that my history files contain a variable called 'pfts1d_wtgcell' (PFT weight relative to...

Hello CESM community, I am encountering one ERROR recently when I run a model with the following compset, turning on fire, compset: I2000Clm50BgcCru CLM_BLDNML_OPTS="-fire_emis" After creating the case, I made some changes in user_nl_clm, such as fire_emis_specifier = 'CB1 = 0.5*BC'...

Hi everyone, I was wondering if the process to create new data streams in CESM2.2 is similar to previous version. I found this old documentation (https://www.cesm.ucar.edu/models/cesm1.2/cesm/doc/modelnl/nl_datm.html#stream), and I would like to know if I could use it for new cases in the...

I have a case that I have set to resubmit 5 times, writing a restart file at the end of each run: ./xmlchange STOP_OPTION=ndays ./xmlchange STOP_N = 720 ./xmlchange REST_OPTION=ndays ./xmlchange REST_N=720 ./xmlchange RESUBMIT=5 I'm not absolutely sure that this usage is correct, but it does...

Hi all, I have a CLM5 case which sometimes runs, but mostly doesn't. I wanted to ask if there is anything I can do to reduce the high crash rate. I am running over a custom domain (sub-Saharan Africa) at a 0.5 degree resolution and outputting CLM5 history fields per PFT as well as on the...

Hi Helpers, I am using school clusters to config and run CESM2. Everything is good until there is an error happened when run ./case.build, here is the output: Building case in directory /share/home/czhou171/ycliu/models/CESM/cases/X.test sharedlib_only is False model_only is False Setting...

Dear all, Is there any way in CESM where I can modify the agricultural ammonia and see how it can affect the ambient PM2.5 globally? I can find some emission files for ammonia from "bb" and "anthro" for different SSPs, but not NH3 solely from agriculture. Any hint/idea on how I can do this in...

Hi, I'm running a fully coupled simulation at 2 degree resolution (compset: 1850_CAM60_CLM50%BGC_CICE_POP2%ECO%ABIO-DIC_MOSART_CISM2%NOEVOLVE_WW3_BGC%BDRD, resolution: f19_g17), as a hybrid run branching from year 401 of the 2 degree PI control (b.e21.B1850.f19_g17.CMIP6-piControl-2deg.001)...

Say I want to build the model with a modification to CAM in the file src/physics/simple/physpkg.F90 How do I ensure that the model knows to modify this file rather than src/physics/cam/physpkg.F90? Should I insert this into SourceMods in the CIME case directory by replicating the directory...

In my experiment, I want to hold the solar radiation using external data. So I plan to use downloaded shortwave (solar radiation) data to overide the model calculation sw value in CESM2 coupler. I found the coupler sw calculation process in subroutine seq_flux_ocnalb_mct in the file...

I am trying to perform a simple Held-Suarez configuration in CAM, with AOA tracers active. I first spun up the model with a period of 1.5 years without including -age_of_air_trcs to CAM_CONFIG_OPTS I am then trying to do a longer run using this spun up state as the initial condition. For this...

I try to run the I1850Clm50BgcSpinup before running IHISTCLM50Bgc. But I got the error as below. = BAD TERMINATION OF ONE OF YOUR APPLICATION PROCESSES = PID 65953 RUNNING AT elnino02 = EXIT CODE: 233 = CLEANING UP REMAINING PROCESSES = YOU CAN IGNORE THE BELOW CLEANUP MESSAGES...

hi, I encountered the following error message after the model run for around 1 min. There is no error during case create/build/submit but during case run. I am not sure what is causing this problem. I am using CESM2.1.3, CAM4-chem tropospheric MOZART, CLM5, FMOZ compset. Could anyone suggest to...