cesm2

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...

Dear all, I recently ported CESM2.1.4 to our computer cluster, which has no internet connection. I tried running the F2000climo compset for the test. The case_create/case_setup/case_build/case_submit steps were finished successfully. However, I encountered an error during the case_run step: the...

Dear all, I am porting CESM2.1.4 on a cluster environment. I encountered problems during the case_build stage. The compiler is Intel mpi. I run the code as following: ./create_newcase --case runtestX --mach qhyc --compset X --res T42_T42 ./case.setup ./case.build Error occurred in the step...

Dear all, I would like to run a fully coupled simulation of CESM 2.1.3 for year 2000. As I did not find a "B2000" compset I created a case based on B1850. I tried to replace "1850" in the long name of B1850 with "2000", and run with the compset with longname...

Dear all, I would like to run a fully coupled simulation of CESM 2.1.3 for year 2000. As I did not find a "B2000" compset I created a case based on B1850. I tried to replace "1850" in the long name of B1850 with "2000", and run with the compset with longname...

Dear all, I am confuesd about how POP handles land in his SST calculations. I am using B1850 from CESM2.1.3. I check o2xavg_So_t, which is the SST passed by POP to CPL. I found the value on land as well at 273.15K (see the Fig below). I checked the code in the ocn_import_export.F90 file for...

Hi everyone, I am using B1850 from CESM2.1.3. I want to export the daily SST received by CPL from POP. So, I set AVGHIST_OPTION=ndays and AVGHIST_N=1. With this setup, the model is able to successfully output o2xavg_So_t. However, the model also outputs a lot of variables that I don't need...

What version of the code are you using? CESM2.2.2 in Derecho Have you made any changes to files in the source tree? Some modification in nudging module Describe your problem or question: What and where is located the subroutine that generates all the log files?.. Thanks

Hi everyone, I plan to design a set of experiments using the B1850 compset in CESM2.1.3 to investigate the wildfire. My question is: do I need to make some necessary settings to activate the wildfire simulation? Looking forward to get any useful information. Best regards, KW

Dear all, I am doing a a set of experiments using the B2000_CAM5_CN compset in CESM1.2.2. The simulation seems successful, but the simulated years / cmp-day in cpl.log is negative (see the figure below). I'm concerned about the reliability of the simulated data. The mode run script is attached...

Hi everyone, I plan to design a set of experiments using the B1850_CAM5_CN compset in CESM1.2.2. I got this spun-up restart file b.e11.B1850C5CN.f19_g16.0850cntl.001 from - Revision 70334: /trunk/inputdata/ccsm4_init/b.e11.B1850C5CN.f19_g16.0850cntl.001/0850-01-01. When I restart the model from...

Hi all, I have a simple question: How can I calculate carbon emissions from vegetation fires? For example, in CMIP6, there is a variable called fVegFire, which represents the carbon mass flux from vegetation into the atmosphere due to CO2 emissions from all fires. However, I couldn't find the...

Hello, I have been trying to separate biophysical and biochemical effects using different components in CLM under the SSP126 scenario.My CESM version is 2.1.3 and CLM version is CLM5. I attempted to change the long name of BSSP126 in CESM from BGC to SP and link my own generated landtimeseries...