cesm2

Hi, everyone! I try to test the nudging tools in directory 'components/cam/tools/nudging/Gen_Data/'. And I chose ERAI as the target reanalysis product. I edited the csh script according to the instructions in the README file and submitted it for execution. Unfortunately, there was an error. I...

Hi,all. I just port CESM2.1.3 in my cluster. I use case.submit to submit my task. I want to know What parameters can be set to keep the model running for days? Because My task always stop after 24 hours. I know this reason is the JOB_WALLCLOCK_TIME=24:00:00. My first try is set the : in...

Dear all, Recently I'm porting cesm2.1.3. I create a newcase to test the model. My compset is F2000climo. But the ocn component is stuck when I run this model. You can see the cpl.log always keep the statue of "Initialize component ocn". I don't know why. Any idea? The attachment is...

Dear all, I find the cam model is stuck in the process as "Creating new decomp". I don't know why. I look through cpl.log and find the cam model is stuck. My compeset is F2000climo and res is f09_g09_mg17. The attachment include the slurm file and atm.log.

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?

Hi all, For some reason, I can't use cesm2 to run. But I got the spinup files from cesm2. I want to use those spinup files as the finit data to drive cesm1 for continue_run. It is possible？ What are the corresponding processes and steps？

I want to use the ICLMCN model to simulate soil carbon fluxes over historical periods, but there is no Component Set named 'IHISTCLM50CN', so how do I do this? My idea is to use I2000Clm50Cn to spinup the model for 600 years (to reach equilibrium)at first. Since IHISTCLM50CN does not exist...

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...

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...

Hi all, I'm porting CESM2.3.beta08 to the ARCHER2 HPC here in the UK. My colleagues have previously successfully ported CESM2.1.3 but we have a research need for more recent model features. We have a script to install the model and a module file to go with it (attached). Following the usual...

Hi all, After porting to Derecho, my pacemaker experiments would stop after iterating for some years or months with not very clear error information. Could anyone give me some hints and help? Thank you in advance! [1] Case Status log: 2023-10-15 10:39:33: case.run error ERROR: RUN FAIL...

Dear all, My research involves wind resource evaluation, so I have to simulate the wind speed as close to reality as possible. The compset I use is 2000_CAM60_CLM50%SP_CICE_DOCN%SOM_MOSART_SGLC_SWAV_TEST, a all-active compset for long-term climate simulation. I choose the slab ocean mode to...

Dear CESM/CAM community, I am aiming at using relative relative humidity output from CESM experiments. In doing so, I encountered problems (comprehension issues) with the RHREFHT field: When performing preliminary analyses (using the CESM2 Single Forcing Experiment), the relative humidity...

Hi,all! I try to use the SpinupStability_v10.ncl to evaluate the state for Spinup model. But i got the information "fatal:No valid instance of variable TOTECOSYSC found in file list" and "fatal:["Execute.c":8637]:Execute: Error occurred at or near line 166 in file SpinupStability_v10.ncl"...

Hi,all, I want to know how to calculate the surface temperature(TSA) in CLM so that I can find the factors related to surface temperature(It's like the effect and control of wind speed and low clouds on surface temperature) I don't know where to find the code and the formulate. Any note or...

Hi all, I'm wondering if there is a version of CESM2 on git that is out-of-the-box compatible with Derecho? If not, does anyone have advice on how to edit the config_machine.xml file so that the model can run on Derecho?

Hi,all! I wanna ask the question:how did the lowcloud effect the surface temperature? Because I find the increase of lowclloud fraction can decrease the Tmin in CESM2.1.3. The result not consisit of my common sense. We usually think the thick and low cloud can keep the surface warm in the...

Hi all, I'm trying to install CESM2.1.4 on the DOE machine Perlmutter (CPU nodes). I've updated the config_machines.xml and config_batch.xml files. However, I'm unsure how to modify the config_compilers.xml to fit Perlmutter-cpu. After using the revised config_machines.xml, config_batch.xml...

Greetings, I am looking if there is a quick and easy way to have the aerosol radiative properties (tau, SSA and g) for each SW band in the output files. I tried something like this in the user_nl_cam when I run CESM2.2: avgflag_pertape = 'A','I' nhtfrq = 0, -3 mfilt = 1, 8 fincl1 = 'tau'...

Hi all, I have a run of CAM6-Chem from CESM2.1.3 with coupled land (CLM5-BGC-Crop) and oceans (POP2) forced by SSP1-2.6 GHGs and land use. I wanted to look at some convection parameters, however the output from the model for CIN was 0 everywhere and the output for CAPE was an order of magnitude...