b.e30_beta06.B1850C_LTso.ne30_t232_wgx3.172

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Assessment

Difficulty
5/5
Estimated time
Over a week
Newbie friendliness
20/100
Issue type
Feature
Clarity
Needs clarification
Activity status
Stale
Domain
hpc

Research direction

Start by comparing this case with run 170 (#98), using the listed case directory, CESM sandbox, and user_nl_mom settings. Review the available diagnostics and raw output, then determine whether replacing KPP with ePBL changes ENSO behavior while salinity restoration remains limited to the Lab Sea. Done means an evaluation of those results, rather than a single code edit.

Written by the indexing model from the issue text.

Description

Purpose:
Evaluate how replacing KPP with ePBL affects ENSO. Salinity restoration is applied only in the Lab Sea.


Description:

Clone of run 170 (#98), but replacing KPP with ePBL (GFDL scheme)

-user_nl_mom

INPUTDIR = "INPUT"
MAXTRUNC = 2000
REMAPPING_USE_OM4_SUBCELLS = False
BODNER_DETECT_MLD = True
MLE_USE_PBL_MLD = False
MLE_DENSITY_DIFF = 0.02
MLE%
USE_BODNER23 = True
USE_CR_GRID = True
CR_FILE = "mle-cr-tx2_3v2-v8_20250215.nc"
MIN_WSTAR2 = 1.0E-09
BLD_DECAYING_TFILTER = 8.64E+04
MLD_DECAYING_TFILTER = 2.592E+06
BLD_GROWING_TFILTER = 300.
MLD_GROWING_TFILTER = 3600.
%MLE
KPP%
KPP_CVt2 = 1.0
%KPP
RESTART_CHECKSUMS_REQUIRED = FALSE

RESTORE_SALINITY = True
MASK_SRESTORE = True
ADJUST_NET_FRESH_WATER_TO_ZERO = False
ADJUST_NET_SRESTORE_TO_ZERO = False
SALT_RESTORE_FILE = "state_restore_tx2_3_20230416.nc"
FLUXCONST = 1.667
SRESTORE_AS_SFLUX = True
MAX_DELTA_SRESTORE = 5.0 

FPMIX = False
USE_KPP = False
ENERGETICS_SFC_PBL = True
EPBL_IS_ADDITIVE = False
ML_OMEGA_FRAC = 0.001
EPBL_MSTAR_SCHEME = "OM4"
TKE_DECAY = 0.01
MSTAR_CAP = 1.25
MSTAR2_COEF1 = 0.29
MSTAR2_COEF2 = 0.152
NSTAR = 0.06
MSTAR_CONV_ADJ = 0.667
USE_MLD_ITERATION = True
EPBL_TRANSITION_SCALE = 0.01
MIX_LEN_EXPONENT = 1.0
USE_LA_LI2016 = True
EPBL_LANGMUIR_SCHEME = "ADDITIVE"
LT_ENHANCE_COEF = 0.044
LT_ENHANCE_EXP = -1.5
LT_MOD_LAC1 = 0.0
LT_MOD_LAC4 = 0.0
LT_MOD_LAC5 = 0.22
BBL_EFFIC = 0.01
USE_RESTRICTIVE_TOLERANCE_CHECK = True

PS: MOM6 will look for salt_restore_mask.nc in INPUTDIR when MASK_SRESTORE = True.


Case directory:


Sandbox:
Locally (if still available): /glade/work/gmarques/cesm.sandboxes/cesm3_0_beta06

On github: https://github.com/ESCOMP/cesm/tree/cesm3_0_beta06


Diagnostics:


Output:

  • Raw output on derecho (if still available): /glade/derecho/scratch/hannay/archive/b.e30_beta06.B1850C_LTso.ne30_t232_wgx3.172/
  • CAM Climos: /glade/campaign/cgd/amp/amwg/climo/b.e30_beta06.B1850C_LTso.ne30_t232_wgx3.172

Contacts:
@cecilehannay @dlawrenncar @adamrher @PeterHjortLauritzen @JulioTBacmeister @swrneale @slevis-lmwg @wwieder @olyson @gustavo-marques @iangrooms @fobryan3 @klindsay28 @dabail10 @duvivier @tilmes @mbramberger


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