clm5.0

Dear Scientists, I am running CLM5.0 with accelerated decomposition (AD) spin-up mode. I have successfully completed an initial 20-year run (4 submissions × 5 years). Now I want to run an additional 200 years in this AD spin-up case. My initial setup: ./xmlchange CLM_ACCELERATED_SPINUP=on...

Hi all, I am currently working on replacing the soil organic matter variable (ORGANIC) in CLM5.0 surfdata. However, the dataset does not provide ORGANIC directly. It provides: Soil organic carbon (OC): unit = g/100g (mass content of organic carbon in fine earth fraction) Bulk density (BD)...

Dear scientists: I am working with CLM5.0 surface dataset file: surfdata_CMFD_TP_hist_78pfts_CMIP6_simyr2000_c260409.nc In this file, I found that PCT_SAND and PCT_CLAY have 10 layers (nlevsoi=10). However, the soil data I plan to use for replacement is the China Soil Dataset for Land Surface...

Hi everyone, I'm new to CLM and trying to do something but have no idea where to start. I'd really appreciate some guidance. What I want to do: I have my own vegetation data (land cover data for China, IGBP classification, 17 types). I want to use this data to replace the default vegetation data...

Dear scientists, I am currently using CMFD data to drive CLM5.0, with the compset I2000Clm50BgcCropGs and the surface dataset: surfdata_CMFD_hist_78pfts_CMIP6_simyr2000_c260325.nc. However, after running `./case.submit`, I encountered the following error: ``` calling getglobalwrite with...

What version of the code are you using? I am using CESM2.1.5 with CLM5.0 Describe every step you took leading up to the problem: I am working with the following component set that enable dynamic vegetation: 2000_CAM60_CLM50%BGCDV-CROP_CICE%PRES_DOCN%DOM_MOSART_CISM2%NOEVOLVE_SWAV The...

Hi all, I’m running a default CESM2 case with F2000climo compset, and I’m trying to assess spin-up stability using Keith Oleson’s script SpinupStability_SP_v10.ncl. I’m surprised that after a 20-year run, several global variables still fail the equilibrium tests unless I loosen thresholds. I...

What version of the code are you using? We use CESM 2.1.4, running on Derecho. Describe every step you took leading up to the problem: We want to explore the effects of land cover change-atmosphere interactions on ecosystem productivity/photosynthesis. We plan to run 4 simulations, the...

Hi, I am using CTSM version 5.3.063 to build a 0.5-degree resolution case with compset I2000Clm60SpCrujra: ./create_newcase --case I2000Clm60SpCrujra --compset I2000Clm60SpCrujra --res hcru_hcru_mt13 --mach gaoxiongwei --run-unsupported However, I am using a custom aerosol dataset. I...

Hi, I'm attempting to run the Plumber 2 sites using CLM 5.3 (the latest version) using the ./run_tower capabilities. However, some towers (listed below) are missing the surfdata files, and therefore, their simulations cannot be conducted. The stations missing surfdata files are: BE-Lon...

Hi all, I'm currently conducting a sensitivity analysis for a few grid cells using CLM5. As part of this, I've modified values in the ctsm60_params.c241119.nc file to assess the influence of specific parameters. I'm looking for guidance on whether any of these parameters are internally...

Hi, I've successfully ported CESM 2.1.5 to the Compute Canada systems. This version includes CLM 5.0.37 by default, but I'd like to update CLM to the latest release (5.3) without upgrading the entire CESM framework. Due to current system constraints, I'm unable to port CESM 2.2 or newer...

Dear colleagues Reposting from the CLM forum. I am running CLM5 regionally in a 3 km resolution over the EU-CORDEX domain. Thus far, our model has worked with forcings that we downscaled to this 3km EU-CORDEX grid without problems. Now, I need to run the same clm5 model but with 12 km resolved...

What version of the code are you using? release-cesm2.2.0 Have you made any changes to files in the source tree? No Describe your problem or question: Hi all, I am currently using CLM5.0 along with the emission_ssp585 dataset to generate land use timeseries data and surface data for my...

Describe your problem or question: Dear NCAR scientists, I am using output from the historical run of CMIP6 (variant_label = 'r1i1p1f1') to analyze photosynthesis. In CLM, plants use C3 and C4 pathways for photosynthesis. I think the input data from CLM should include C3 and C4 plant...

Hello, I've been using CESM2.2.1 for local offline simulations, and I'm constantly confused about the compilation order and module hierarchy in the CESM2.2/components/clm/src/biogeophys/ directory. While there is a CMakeLists.txt file in this directory, it is only used for unit testing and...

Hello Everyone! I am a student and recently started studying the Community Land Model (CLM). I want to estimate soil moisture using CLM. I tried to look for tutorials about soil moisture estimations on YouTube and other platforms. However, I am unable to find any particular tutorials or...

Dear Team, I am running fully-coupled CESM2.1.2 simulations with CLM 5.0 (and BGC-Crop) under an SSP scenario. In my simulations, I am adding tree cover and thus removing shrub/grass/crop to make space for the trees. I ran the first two years of simulations for the baseline (fixed tree cover...

What version of the code are you using? - I ran CESM 2.1.4 on NCAR HPC. Have you made any changes to files in the source tree? - I only changed the default “fsurdat” Describe every step you took leading up to the problem: - Specific steps: 1) create a new case with F2000climo compset...

I want to create a case to make the model use my own downloaded co2 file (cmip6 download rcp2.6 data) : /home/hlh/cesm/inputdata/atm/datm7/CO2/fgco2_Oyr_CanESM5_rcp26 - cmip5_r1i1p1f1_gn_2006 - 2100.nc How can the next operation be completed? Hopefully, you can start by creating a case How...