waccm

Hello, The MERRA2 forcing files used to nudge the atmospheric fields, in the specified dynamics configuration, stop in April 2021: /glade/p/cesmdata/cseg/inputdata/atm/cam/met/MERRA2/0.9x1.25/ Are the newest files for 2021-2023 available somewhere? And if not, is there a plan to make them...

Hi all, I am trying to download an output of the WACCM subset, but I receive this error: There were problems accessing the data: User has more than 10 open requests. Purge requests before trying again. I would greatly appreciate it if somebody could tell me how to purge previous requests...

In an attempt to compare volcanic eruptions in different climate states I want to run the BWma1850 compset with doubled CO2 concentrations before I branch off and run my ensemble of volcanic eruptions experiments. (I have already been running these eruptions using the standard BWma1850 compset.)...

I want to run a simulation similar to the BWma1850 compset, but that has fixed sea-surface temperature (see long name below) and then double the CO2 concentration. Simulation long name: 1850_CAM60%WCCM_CLM50%BGC-CROP_CICE_DOCN%SOM_MOSART_CISM2%NOEVOLVE_SWAV_TEST My first approach was to only...

When running simulations with volcanic forcing in a fixed sea-surface temperature condition to get an estimate of the forcing, what output variables are the appropriate ones to use? From what I understand, the standard way to do this is to calculate it as the sum of the shortwave + longwave...

Greetings, I am writing to seek your help regarding an issue I encountered in my CESM2.1.1 WACCM simulation. During the simulation, I used the branch restart method multiple times. However, I noticed that the monthly mean values of the SOLIN variable show irregular fluctuations instead of...

I have previously been running the BWma1850 compset, where the point has been to run the CESM with my own volcanic forcing file (i.e. by creating a new VolcanEESM... in the stratvolc directory) such that the evolution of stratospheric aerosol from SO2 emissions are calculated by the model. The...

Hello, I am interested in modeling discrete events that generate instantaneous emissions at altitude. I want to create impulse emissions which occur at a single instance, rather than over time. For context, I need to combine this emission with other emissions that use the 'cyclical' parameter...

Hello there! I am a new user to WACCM/CAM and I am interested in adding alumina emissions at altitude. However, I am confused how to specify the particle distribution size for my emissions. I am also curious to learn how to add optical properties such that WACCM computes the radiative forcing...

Dear all, I'm trying to run CESM2.1.3 with FW2000climo compset, and resolution is f09_f09_mg17. I'm able to run the case successfully. However, after I changed topography file by reducing PHIS, SGH, and SGH30, the case failed, with the error messages like: (from the first file attached) Then...

Hi all, I'm running a WACCM aquaplanet simulation with a 1 degree resolution spectral element dynamical core. When I run this configuration, I get an error when the qbo_init subroutine runs with WACCM -- it calls for 'UZM' zonal mean zonal wind, which is no longer computed with CESM2 in...

Hi all, I would like to interpolate some initial conditions from WACCM (70 vertical levels) to use in a CAM-chem run (32 vertical levels) using the interpic tool. I can see that a 32-level case is non-standard in the script 'create_template.ncl' which is required to run interpic. Sure enough...

Hello, I'm interested in output from these WACCM runs that were performed at NCAR: SSP585 /glade/collections/cdg/data/CMIP6/ScenarioMIP/NCAR/CESM2-WACCM/ssp585/r1i1p1f1/ case root: /glade/work/cmip6/cases/ScenarioMIP_WACCM/b.e21.BWSSP585cmip6.f09_g17.CMIP6-SSP5-8.5-WACCM.001 SSP126...

Hi all, I wonder what the difference between O3_Prod and O3_CHMP. It seems based on output, O3_CHMP is "chemical production rate" in a unit of /cm3/s; for O3_Prod, it is in a unit of molecules/cm3/s. I guess one may be the reaction rate constant, and another one is the reaction rate. But I am...

Hi! I was wondering if anyone knows which solar irradiance data includes EUV and soft X-ray bands (in https://svn-ccsm-inputdata.cgd.ucar.edu/trunk/inputdata/atm/cam/solar/)? The default one (spectral_irradiance_Lean_1610-2009_ann_c100405.nc) only goes down to 120 nm. Thanks in advance for the...

Hello, Now, to investigate the effect of the aircraft's emission on the atmosphere, I run two CASEs: one with aircraft emission and one without the emission. The calculation conditions are below. COMPSET: FW1850 RES: f09_f09_mg17 RUN_STARTDATE: 2015-0101 STOP_N = 13 STOP_OPTION = nmonths...

Hello, I am trying to download daily WACCM file from NCAR data base https://www.acom.ucar.edu/waccm/DATA and each day file is over 8 GB, but I want to deal with only certain portion of globe which results in 500 MB of file, so I want to perform the hyperslab on remote server so that only 500 MB...

Hi all, I am going to run a test in a local cluster where we have CESM2. These are the steps that I follow: create_newcase --compset FWmadSD --res f09_f09_mg17 --case=~/cases/test cd ~/cases/test/ ./case.setup ./case.build build step goes well and successfully finished the job. Then...

Hi everyone I am new in the community and going to run WACCM_D. Is there any example run available to get started? How I can find out which compsets and grids should I use in this case? I really appreciate your helps.

Hi, I was wondering what is the difference between the waccm model output variable (TROPP_T) and TROP_T. Thanks in advance for your help. Best, Mingcheng