nf1850mam4_alpha08_ne30pg3_ne30pg3_mtn14_20241126

[oyvindseland]

Purpose:
Help understanding the differences between n1850.ne30_tn14.hybrid_fatessp.20241111 and n1850.ne30_tn14.hybrid_fatessp.20241125 using an uncoupled test set, although including some modifications expected to improve on
n1850.ne30_tn14.hybrid_fatessp.20241125

Description:
To get the code

git clone https://github.com/NorESMhub/NorESM.git
cd NorESM
git checkout noresm2_5_alpha08
./bin/git-fleximod update

• create_newcase command

   ./create_newcase --case <user_case_path>  nf1850mam4_alpha08_ne30pg3_ne30pg3_mtn14_20241126\\
 --compset  --compset NF1850mam4 \\
 --res ne30pg3_tn14 \\
 --project nn9039k --run-unsupported --mach betzy 

• user_nl_cam

dust_emis_method = 'Leung_2023'
use_aerocom = .true.
interpolate_nlat   = 192
interpolate_nlon   = 288
interpolate_output = .true.
history_aerosol = .true.

• user_nl_clm

 stream_fldfilename_prigentroughness = '/cluster/shared/noresm/inputdata/lnd/clm2
/dustemisdata/Prigent_2005_roughness_0.25x0.25_cdf5_c240127.nc'
stream_meshfile_prigentroughness = '/cluster/shared/noresm/inputdata/lnd/clm2/du
stemisdata/dust_0.25x0.25_ESMFmesh_cdf5_c240222.nc'
use_prigent_roughness = .true.
use_z0m_snowmelt = .true.
z0param_method='Meier2022'

• xmlchange commands

./xmlchange NTASKS=1920
./xmlchange ROOTPE=0
./xmlchange STOP_OPTION=nyears
./xmlchange STOP_N=2
./xmlchange --subgroup case.run JOB_WALLCLOCK_TIME=18:00:00
./xmlchange --subgroup case.st_archive JOB_WALLCLOCK_TIME=03:00:00

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Compset long name
1850_CAM70%LT%NORESM%GHGMAM4_CLM60%SP_C
ICE%PRES_DOCN%DOM_MOSART_DGLC%NOEVOLVE_SWAV_SESP

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Model grid long name
ne30pg3_ne30pg3_mtn14

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Case directory:

• Locally on betzy (if still available):
  /cluster/projects/nn9560k/oyvinds/NorESM2.5_alpha08/cases/nf1850mam4_alpha08_ne30pg3_ne30pg3_mtn14_20241126

• On github:
  https://github.com/NorESMhub/noresm_simulations/tree/$CASE

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Code version on github (either NorESMhub or user's fork):
-https://github.com/NorESMhub/NorESM/releases/tag/noresm2_5_alpha08

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Diagnostics:

• Diags (if available):

Output:

• Raw output on nird (if still available): /nird/datalake/NS9560K/noresm3/cases/nf1850mam4_alpha08_ne30pg3_ne30pg3_mtn14_20241126

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Contacts:
@oyvindseland @mvertens

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Extra details:

Note differences in dust emissions, roughness parameterisations and NorESM tuning factors compared to the coupled simulation #61

[adagj]

ADF: https://ns2345k.web.sigma2.no/datalake/diagnostics/ADF/plots/nf1850mam4_alpha08_ne30pg3_ne30pg3_mtn14_20241126_1_1_vs_N1850frc2_f09_tn14_20191001_1200_1229/website/index.html