CAM Information - Githubissues

DataWaveProject / CAM

Community Atmosphere Model

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CAM Information #1

Open jatkinson1000 opened 4 months ago

jatkinson1000 commented 4 months ago

CAM code is at github.com/ESCOMP/CAM.

We want version 6.3.139 which is "mid-top" CAM.:

git clone https://github.com/ESCOMP/CAM  CAM
cd CAM
git checkout cam6_3_139
./manage_externals/checkout_externals

Qiang is re-training NN to work with this model.

Benchmark to use is FMTHIST.

From Joan: Context here is that this is more recent "mid-top" CAM capable of modelling stratosphere comfortably. It is suspected that this is where we will be going in future, so makes sense to work on this.

If you want to run CESM on NCAR, this is one command you will need.

./create_newcase --compset FMTHIST --res ne30pg3_ne30pg3_mg17 --case ../../cases/MMdiags --project XXXXXXX --machine derecho

[x] Jack and Surbhi to try and run benchmark for unaltered CAM on Derecho (limit number of timesteps) to check it is set up OK. - Ask Qiang or Martina for help if issues.

jatkinson1000 commented 4 months ago

CAM has been forked into this repo.

We should:

Create a branch for this work
Checked out at the 6.3.139 tag
Clarify the locations that we need to couple and the current routines that will be emulated
Discuss the CAM setup procedure (what flags do we want, do we want to compare or replace etc.)

jatkinson1000 commented 2 months ago

Related is the version of CESM we want to run within. I have asked JA and QS about this, suggesting 2.1.5

jatkinson1000 commented 1 month ago

I have just tried to create a clean case using:

./cime/scripts/create_newcase --compset FMTHIST --res ne30pg3_ne30pg3_mg17 --case ~/derecho_cases/CAM_GW_xml_test --project URIC0009

And get the error:

ERROR: grid alias ne30pg3_ne30pg3_mg17 not valid for compset HIST_CAM%DEV%MT%GHGMAM4_CLM51%SP_CICE%PRES_DOCN%DOM_MOSART_SGLC_SWAV

Do we need to to use a different case or resolution? I have asked the collaborators.

jatkinson1000 commented 2 weeks ago

The solution to this is to run CAM only, not as part of CESM.

The instructions in the README have been updated as part of #5 to clarify this.