data models

What version of the code are you using? cam6_4_025 Have you made any changes to files in the source tree? No Describe every step you took leading up to the problem: I ran the following shell script to create a new case: #!/bin/sh CIMEROOT=/glade/u/home/nforcone/CAM_6_4_025_20240829...

I'm using CESM2.1.5 and I am trying to save and then use coupler history output. TLDR is there a way to directly use the saved coupler history files as input files without having to modify the files? Where is that setting? To generate coupler history output I added these lines to my clm...

Dear colleagues Reposting from the CLM forum. I am running CLM5 regionally in a 3 km resolution over the EU-CORDEX domain. Thus far, our model has worked with forcings that we downscaled to this 3km EU-CORDEX grid without problems. Now, I need to run the same clm5 model but with 12 km resolved...

Hi all, I'm seeing some odd behaviour using anomaly forcing with CLM5. I'm trying to run the compset ISSP245Clm50BgcCrop in CESM2.1.3. I create the case and add the following to user_nl_datm: anomaly_forcing = 'Anomaly.Forcing.Precip', 'Anomaly.Forcing.Temperature', 'Anomaly.Forcing.Pressure'...

Hi all, I have a transient historical run in CLM5 starting in 1901 which fails after the first few timesteps or so. The error in the atm.log is (shr_dmodel_readstrm) file ub...

Dear all, How can I get the input data for soil type (such as sand, silt, clay, et.al) in LUMIP (in experiment ID of hist-noLu,ssp370-ssp126Lu), CMIP (historical), and ScenarioMIP( ssp370). Thanks.

Hi all, I want to prescribe land surface temperature to drive the model, just like prescribe the SST. Hence I first run a 2-years control F_2000 experiment to output cpl hist files (xx.cpl.ha2x.yy.mm.dd.nc and xx.cpl.hl2x.yy.mm.dd.nc) in so-called "DLND_CPLHIST_DIR". Then I used these cpl hist...

In my experiment, I want to hold the solar radiation using external data. So I plan to use downloaded shortwave (solar radiation) data to overide the model calculation sw value in CESM2 coupler. I found the coupler sw calculation process in subroutine seq_flux_ocnalb_mct in the file...

I'm not entirely sure if this should go in the CLM or DATM forums, so apologies if I've guessed wrong. I'm trying to run PTCLM5.0 with transcient atmospheric CO2 concentrations. As per this guide, these are the steps I have taken...

We have recently finished a 2011-2019 reanalysis using CAM6 and DART. Several data sets have been archived to the Research Data Archive 345.0. They are designed to be useful to a variety of researchers in the CESM community. We're interested to know whether you feel that this would be a...

Dear Scientist, Recently I want to run a regional case (centerpoint is 114.1°E,30.4°N，grid number is 10×10， and the grid resolution is 0.1°×0.1° ) using CRUNCEP as forcing data and Jackson as surface datasets. However, there are two questions bothering me： 1. The correct step is using...

Dear scientist, Recently I want to run a regional case using CRUNCEP as forcing data and Jackson as surface datasets. However, there are two questions bothering me. 1. The correct step is using mkscripgrid.ncl to create scripgrid file ,then using mkmapdata.sh to create mapping file, then...

Hi all, I am trying to run CLM5 using my own atmospheric forcing. I followed the guide on http://www.cesm.ucar.edu/models/cesm1.2/clm/models/lnd/clm/doc/UsersGuide/x12979.html but somethings still appear unclear. 1. the file link_dirtree does not seem to exist in my scripts directory 2. the...