clm

Hi, I am working on spinning up the Plumber 2 flux towers using the BGC mode using CLM5. I plan to spin up each tower for 300 years in AD mode, then 100 years in post-AD mode, following the transient mode. In this sense, I am wondering about the difference between: (a) Activate the...

Hi, In the context of running the Plumber 2 flux towers using CLM5, I am trying to spin up the towers in BGC mode using AD (300 years) and post-ad (100 years). To conduct this, I am using the ./run_towers script: # Run the script to set up the tower sites export tower=AT-Neu ./run_tower...

Dear Community Member, I am running CLM 5 in my CLM 5. Can you please suggest some global spinup files til 2000 or newer for vegetation studies, which support FATES. Thank you so much for your attention.

Hi all, I've successfully ported CESM 2.1.5 to the Compute Canada machines and have been able to run a few simulations. However, I've noticed that the jobs request a large number of resources by default (e.g., 288 cores in 6 nodes). Is there a way to limit the maximum number of nodes or cores...

Hello I’m working on reproducing the Plumber 2 simulations with some changes on the parameter values, but I’m uncertain how the original simulations were spun up. The Plumber 2 webpage (ModelEvaluation.org) mentions that these runs were spun up with the forcing data, but I would greatly...

Hello, everyone: "I would like to ask if there is a way to change some fixed values in parameterization schemes. I have been searching the source code but I can't find any relevant information. For these fixed constants, is there a separate file where they are stored? For example, I have...

Hi, all, I use a modifed version of CLM5 to run a single-point simulation, after 13 years run (now is 2006), the LAI started to drop to almost 0 (now LEAFC becom to negative), then after continue run 7 years (now is 2013), the model stopped, with netcdf write issues (I thought some extreme...

Hi, I'd like to use SNICAR to get the aerosol on snow forcing diagnostics. I'm using cesm2.1.3 (see ./describe_version results in text file), and haven't made any code changes. create_newcase --case B2010_base --compset...

Hi, CESM team! I'm a bit confused about how to adjust the forest Fraction annually. In CESM, there are PCT_NATVEG and PCT_NATVEG_PFT. As far as I understand, PCT_NATVEG is the land use data determined at the start year when CESM is initiated(in fsurdat ). The landtime series file only contains...

Hi, all The model I'm using with palm tree functionality is based on ctsm1.dev040 (I runs well), but this version doesn't have SSP, so I need to upgrade my development version to the nearest version that does have SSP, which is ctsm1.dev090, and by upgrade I mean copying the src folder of...

Hi, the version of the model I'm using is CESM2.1.3, and the compset is FHIST (HIST_CAM60_CLM50%SP_CICE%PRES_DOCN%DOM_MOSART_SGLC_SWAV). I plan to use annually varying LAI in the model. I can provide a 10-year monthly LAI dataset based on other satellite observations, but I found that the...

./create_newcase --case Myco2case --res f09_g16 --compset IHistClm50BgcCrop --mach myintel --compiler intel --run-unsupported I created this case, I want the model to use my own file download of co2 (cmip6 download rcp2.6 data)：...

Dear all, I want to investigate the response of atmosphere to the variability of soil moisture over a certain region. I wonder how to modify the soil moisture and which files or setting should be changed. Any reply would be greatly appreciated.

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...

./create_newcase --case HistClm50BgcCrop --res f09_g16 --compset IHistClm50BgcCrop --mach myintel --compiler intel --run-unsupported I created this case, I want the model to use my own file download of co2 (cmip6 download rcp2.6 data)...

Hi,all! Recently I've been trying to use the new GCAM data to convert it into land use data that can be driven by CLM (related post). I still have some questions about how LUH2 is converted to CLM standard format for land use driver data. My CESM version is 2.1.3. 1. When converting to LUH2...

./create_newcase --case HistClm50BgcCrop --res f09_g16 --compset IHistClm50BgcCrop --mach myintel --compiler intel --run-unsupported I created this case, I want the model to use my own file download of co2 (cmip6 download rcp2.6 data)...

Hi,all! my CESM version is 2.1.3.I wonder if CESM can have SSP scenarios that can be run with few landuse PFTs? The current SSP scenarios have a lot of land use categories set up, with 78 for CROP. Are there any SSP scenarios that can be run where the land types are not as detailed? (For...

Hi,all! I would like to know how to separate biogeological and biochemical effects by setting up the CESM components? I guess it is to turn off the cycling of the carbon and nitrogen pools in the CLM, does this mean I need to use CLM50%BGC (turn on the carbon and nitrogen pools) and CLM50%SP...

Hi,all! We have focused on the output of the GCAM model under future scenarios, but the land use types output in GCAM are mostly aggregated. For example, in CLM vegetation is classified into a total of 16 categories, but in the GCAM outputforest is only distinguished into 5 categories(AR6...