clm

Hi all, I am designing my land-only simulations for the project where I change 'numurbl' from 3 to 10 in the land surface file. For spinup from a cold start to generate initial data, in my understanding, maybe it should start with I1850, followed by IHIST(1850-2000), and then I2000, and...

I'm trying to run CLM model. I know that a local input directory should be available and set in the config_machines.xml --> ''DIN_LOC_ROOT''. My question is that, whether or not, ''DIN_LOC_ROOT_CLMFORC'' should be also provided in the config_machines.xml, when the CLM model is build/run? If...

Hi, everyone. I'm trying to do some experiments based on the changes on the stem area index (SAI/Ls). I noticed that in the document of CLM5.0 the stem area index was described as ''Prescribed plant functional type (PFT) stem area index is derived from PFT leaf area index phenology combined with...

Hi, I really don't know where I have a problem here, I just want to run an I2000CLM50CN model, so just do some basic Settings. ./xmlchange STOP_OPTION=nyears,STOP_N=170,NTASKS=164 ./case.setup ./case.build ./case.submit However, I never see the growth of vegetation. In the result, TOTSOMC only...

Hi, everyone. I want to conduct experiments with dynamic vegetation using CESM1.0.4. The aim is to check if the vegetation type would change under the response of atmosphere and ocean. I am not familiar with the clm model, so I follow the clm userguide to realize it. First, sets...

Hi, I tried to run I2000CLM50CN composet for ten model years without making any modifications. However, when I checked the output TLAI or GPP, I found that its value was normal in the first year, but it began to decline rapidly in the second year and approached 0. I understood that this meant...

Hi， all when i was checking the surface data surfdata_0.9x1.25_hist_16pfts_Irrig_CMIP6_simyr2000_c190214.nc. it seems its res is 0.9 and 1.25, so globally its shape should be 200/288 , but when i open it in python the dimension is lat: 192, lon: 288, so the 0.9 is not the real...

Hello, guys. I want to simulate the climate of 200Ma when there was a LIP, but now I have a problem. The inputdata of BIOME4 is for LGM (temperature, precipitation, sunshine, and so on), and the PaleoToolkit Recipe tells me that we can use BIOME4 if we run a case of PETM although the timing does...

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, I am new to use CESM. I want to use CESM to run high resolution (0.1 degree) regional simulation using the CLM5-BGC-crop coupled with CAM in Europe. But I did not find step-by-step user guide from CESM official website. And I am not sure whether I must use variable resolution CESM. It is...

Dear all, We are trying to replace the land cover/use (LCLU) map in the CLM in 1984 and 2014, respectively, using high-resolution/accuracy LCLU derived from remotely sensed data. Then we want to run two experiments: (1) a 30-year run with 1984 LCLU data and (2) a 30-year run with 2014 LCLU...

Hello - I have a few clarifying questions regarding the CESM Last Millennium Ensemble simulations (https://doi.org/10.1175/BAMS-D-14-00233.1). 1) I have been advised in the past to look at CLM 4.0, 4.5, and 5.0 tech notes to better understand how the land use / land cover changes impact river...

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 want to prescribe land surface temperature to drive the model, just like prescribe the SST. Hence I first run a 2-years control F_2000 experiment to output cpl hist files (xx.cpl.ha2x.yy.mm.dd.nc and xx.cpl.hl2x.yy.mm.dd.nc) in so-called "DLND_CPLHIST_DIR". Then I used these cpl hist...

Dear, All I'm trying to run CTSM model on LEVANTE cluster with my daily forcing, but I have several problems: 1. I don't understand why I have these Errors. However, I checked data and I have them into the folder. Also there is no problems with LND_DOMAIN_PATH and LND_DOMAIN_FILE. 2. When I'm...

Hi! everyone. I got a ERROR: Unknown error submitted to shr_abort_abort When CESM2.1.3 RUN. The log file in the attachment. I spin up 50years and change the surfdata in CASE test612 ,see the posthow-to-generate-surface-datasets-using-my-own-land-use-data. Now, I create a new CASE test620 and...

Hello everyone, I've been encountering an issue while trying to practise the "BGC_spinup" case on the website https://escomp.github.io/ctsm-docs/versions/release-clm5.0/html/users_guide/running-special-cases/Spinning-up-the-biogeochemistry-BGC-spinup.html When I submit case "BGC_spinup", the...

I am trying to run with my own regional 0.5*0.5 degree resolution based on the I1850CLM45CN compset, set RTM_MODE=ACTIVE. I used the "ncks" command to clip the global rdirc file to the area I am run trying to run on Many errors occurred when the model is actually run... So I want to know...

Hi, everyone, I'm running CESM2.1.3 with the defined compset BC5L45BGC (longname: 2000_CAM50_CLM45%BGC_CICE_POP2_MOSART_SGLC_SWAV). After submitting the job, the model encountered an error stating "Error in entering/exiting spinup. spinup_state != restart_file_spinup_state, but do not know what...