cesm2

What version of the code are you using? CESM2.1.3 Have you made any changes to files in the source tree? sed -i "$ a use_soil_moisture_streams = .true." user_nl_clm sed -i "$ a stream_fldfilename_soilm =...

What version of the code are you using? CESM2.2 and CAM6 Have you made any changes to files in the source tree? Changes in the nudging module and the dust scheme Describe your problem or question: From the documentation I see that besides the AODDUST, it is possible to get the AODDUST for...

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...

Hi everyone, I would like to study the climate impacts of a specific volcanic eruption using CESM2.1.5 (CAM6). For example, I want to start from a piControl condition, impose a volcanic forcing corresponding to the 1991 Pinatubo eruption, and simulate the climate response over the following 5...

What version of the code are you using? CESM2.2.2 and ESMF 8.7.0 I create the case through: ./create_newcase --case ~/work/CESM/debug_module --compset FXHIST --res f09_f09_mg17 --mach tylogin02 --run-unsupported Have you made any changes to files in the source tree? For xml file changes: in...

Hi, In a F2000Climo simulation, I set ‘use_soil_moisture_streams = .true. ’. The model automatically reads the monthly average H2OSOI file. I just wonder how the model processes the daily H2OSOI data, as I have observed that the daily H2OSOI values are not entirely consistent year-on-year. Any...

What version of the code are you using? - CESM 2.1.3 Have you made any changes to files in the source tree? - No Describe your problem or question: - I am running a simple test using F2000climo in CESM2.1.3. I have made no modifications and am only conducting a basic control experiment. To...

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...

I am modifying the POP source code in CESM2.1.3 and having trouble optimizing the performance. In forcing_coupled.F90, which receives surface forcing fields from the coupler, I overwrite the CESM prediction of wind stress with my own statistical prediction based on SST from CAM. My statistical...

I am modifying the POP source code in CESM2.1.3 and having trouble optimizing the performance. In forcing_coupled.F90, which receives surface forcing fields from the coupler, I overwrite the CESM prediction of wind stress with my own statistical prediction based on SST from CAM. My statistical...

What version of the code are you using? release-cesm2.2.2 Have you made any changes to files in the source tree? No Describe every step you took leading up to the problem: I'm testing two experiments with the same compset and model version. ./create_newcase --case...

I am using CESM2.1.3 to try to run a simulation with CMIP6 Historical forcing I intend to initialize the model using restart files (ideally those available on NCAR Derecho) for the year 1970, and execute a simulation with a Historical compset up to the year 2015. The CMIP6 Historical compset I...

Hi everyone, I am trying to model the radiative effects of HFCs using CESM2.1.5 I am finding that the lower boundary condition files in most compsets do not include any HFCs. Some have a CFC11eq (such as the FW1850 compset) which is a weighted aggregate that includes HFCs and other gases...

I am trying to do branch/hybrid runs using 10 ensemble members of CESM2-LENS BHISTsmbb: 1011.001, 1031.002, 1051.003, 1071.004, 1091.005, 1111.006, 1131.007, 1151.008, 1171.009, and 1191.010, with restart files beginning around 2000-01-01-00000. I found some restart files for BHISTsmbb in the...

What version of the code are you using? CESM 2.1.3 Have you made any changes to files in the source tree? Not yet 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...

Dear all, I don't whether this is right thing to do but after interpolating the variables from CESM2 hybrid-sigma levels to pressure levels, should we recompute the geopotential height from the interpolated temperature? Is this recommended?

When simulating precipitation after 2015, the model results show that, compared with ERA5, the large-scale summer rain belt over China and adjacent regions is shifted northward, convective precipitation is relatively weak, and the western Pacific subtropical high (defined by the 5880-gpm...

Dear CESM scientists, I ran CESM2.1.5 on the Intel classic compiler with the following case settings: ./create_newcase --compset IHistClm50BgcCrop --res f09_g17 --case $HOME/cases/testfast --mach mytest --compiler intel --run-unsupported vi env_run.xml # chenge STOP_N and STOP_OPTION to 5...

I am a beginner to CESM, and am using CESM2.1.3 to run a CO2 forcing experiment. I would like to increase the CO2 concentration by 0.73% for 190 years to go from 284 ppmv (as set by co2vmr in the restart files) to 1135 ppmv. Can I use the following namelist variables to do so? Any suggestions...

Hi everyone, I am still working to solve the issue as shown in the last thread(CESM2.1.4 case_run error: without any hist output nc files). I find there may be something wrong about the inputdata used in F2000climo because the cesm.log (also attached) says a lot of message as following...