cesm2

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...

Hi all, I ran a CAM-Chem case in CESM2.1.3 and output CIN, but all values were 0. I've seen elsewhere that this is a known issue with CAM-Chem and that CIN tends only to be output by WACCM (I guess this is my fault for going for the cheaper model). I'd like to calculate CIN manually but the...

Hi, I am attempting to run an CESM2.1.3 case (compset BSSP126), and I encountered an error about half an hour after submitting the case. The CESM log reads: 2 IMOD, NAPROC, NBLKRS, NSPEC, RSBLKS= 1 72 9 600 5 600 5 1 IMOD...

Hi, I made some changes in user_nl_clm as: hist_fincl1 = 'FireComp_BC', 'FireMech_bc_a1', and so on other variables, but it seems it didn't find FireMech_. I can see 'FireMech_bc_a1' in the list in the link below, but why is it unable to find it? There is no problem with FireComp_BC, but only a...

Hi all, We've successfully ported CESM2.1.3 to an HPC. Alas, said HPC was recently taken offline for various 'upgrades', and CESM2.1.3 no longer runs properly. After an extended session of whack-a-mole with various error messages, I've come across one which has me stumped. A test case using the...

Hi,all! I'm using F2000climo to simulate global changes from 2000-2050, I now want to output the 2000-2050 surface coverage dataset, what variables should I pick to output? Is it in the CLM component?

Hi, I have recently conducted simulations using CLM5 in CESM2.2.0, and I am particularly concerned about the emissions from land fires. I compared several species using both the GFED4 and CMIP6 biomass-burning emissions files. While the emissions of all other species appear to match reasonably...

Dear all, How can I get the input data for soil type (such as sand, silt, clay, et.al) in LUMIP (in experiment ID of hist-noLu,ssp370-ssp126Lu), CMIP (historical), and ScenarioMIP( ssp370). Thanks.