cesm2

Is there a supported setup for CESM2 with mean climatology for everything? It's not like the F2000climo for monthly climatology but for an averaged mean climatology for decades. I assume I may need to average the fields needed for all input files on my own, right? But is this generally...

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...

I am working with CESM2 Large Ensemble data at /campaign/cgd/cesm/CESM2-LE/atm/proc/tseries/ and would like some clarification regarding six-hourly and daily data. For six-hourly data… Question #1 Are T, Q, U, V, and Z3 output variables instantaneous or time-averaged? If they are...

Hi everyone, I just wondering if there is a posibility to run the CESM model backward in time? I thought it would be an interesting techs to attribute the reasons for a certain phenomenon. I would appreciate it if anyone konw how to do it or want to discuss it. Best.

Hello all, I am porting CESM2.2.2 to a new machine, Sherlock. Using the attached configuration files, I've successfully passed create_newcase, case.setup, and case.build stages, but hit errors at runtime for the test case "b.e20.B1850.f19_g17.test" (compset=B1850, res=f19_g17). It was built...

Good afternoon! I am kindly requesting insight into the "time" variable in CESM2 historical output data. While the filename ('psl_Amon_CESM2_historical_r4i1p1f1_gn_185001-201412.nc') indicates that the historical run extends from January 1850 to December 2014, my time conversion using Python's...

Hi all, I've come across an error which I haven't seen before and which hasn't been discussed in the forums elsewhere. This is a MUSICA case running the FCnudged compset in CESM2.2.2. The case compiles and submits as normal, but crashes fairly quickly when loading in emissions files. Below is...

Hi, I designed a experiment (startup run, F2000climo in CESM2) in which the soil moisture is prescribed with a given soil moisture climatology file. To reach this purpose, I set use_soil_moisture_streams = .true. in user_nl_clm. I also set stream_fldfilename_soilm =...

Dear all, I would like to do a fully-coupled simualtion with 2000 climatology with CESM2. I think I should use the BC5L45BGC, which like B_2000_CAM5_CN in CESM1? However, the supported level of BC5L45BGC is just 'defined', and BC5L45BGC does not have a Scientifically Supported Grids. If the...

Hi everyone, I've been working with the F2000climo compset and noticed that the input files seem to contain only twelve months of data, which I assume is circulated annually by the model. However, I would like to introduce time-varying SST and CO2 data in my simulations. To achieve this, I'm...

Hi, SOILLIQ and H2OSOI both reprsent the soil moisture. I would like to convert SOILLIQ (kg/m^2) to H2OSOI (m^3/m^3), which have different units. But I have no idea how to do. I am looking forward to any suggestions. Thanks in advance. Best, Kaiwen

Hi, I am trying to replace the soil moisture data with a soil moisture data climatology file in the fully coupled CESM1 or CESM2 (CESM1 is better) only when the model is calculating the heat flux (i.e., latent and sensible heat flux), and maintain the coupling state between the land and the...

Hi, I am trying to replace the SST data with a SST climatology file in the fully coupled CESM1 only when the model is calculating the heat flux (i.e., latent and sensible heat flux), and maintain the coupling state between the ocean and the atmosphere at the same time. In short, ocean component...

I am looking for some simulations and restart files: the FHIST or AMIP simulations with prescribed SST, running from 1850 to the 21st century. I can only find such simulations starting from 1950 to 2014. And I am unsure whether there are any simulations as requested, but any suggestions/help...

Hi, I am trying to replace the SST data input CPL with a SST climatology file in the fully coupled CESM1, and maintain the coupling state between the ocean and the atmosphere at the same time. So only CPL can see the SST climatology file when the model is calculating the heat flux. But I have no...

Hi, I managed to build the 'interpic_new' executable on Casper but have run into some further issues when trying to regrid a CAM-Chem IC file to an SE/RR grid. When running the initial command: ./interpic -t SE_template.nc -i area...

What version of the code are you using? CESM2.1.3 Have you made any changes to files in the source tree? No Describe every step you took leading up to the problem: If this is a port to a new machine: Please attach any files you added or changed for the machine port (e.g., config_compilers.xml...

I have some questions regarding the f.e21.FHIST_BGC.f09_f09_mg17.CMIP6-AMIP.0XX experiment series (001 to 010). What are the differences between the outputs and setups? They use the same F compset, but what other conditions were applied differently? As for the SST Inputs, are they all using...

Hello! I'm having some trouble running my case and am hoping someone on the forum can help me. I am using a virtual Linux machine running Ubuntu 22.04. I followed this guide to set the machine up and port CESM. However I chose to download a beta version as recommended by the visualCaseGen...

Hi all, I need to regrid a CAM IC file onto a regionally-refined CAM-SE grid for use in MUSICA. The file I am trying to regrid is: /glade/campaign/acom/acom-weather/MUSICA/init/ne30_ne30/f.e22.FCnudged.ne30_ne30_mg17.release-cesm2.2.0_spinup.2010_2020.001.cam.i.2019-01-01-00000.nc In order to...