b.e30_beta06.B1850C_LTso.ne30_t232_wgx3.175

Start by comparing run 174 (#102) with the case configuration in the issue and inspect SourceMods/src.mom/MOM_hor_bnd_diffusion.F90, where the near-surface Redi mask is implemented. Use the listed CESM sandbox and case directory to determine how the run is configured. Done means producing the requested Labrador Sea run and assessing its response with the linked diagnostics or available output.

Purpose:
Check the Labrador Sea response to the updated KPP, efficiency file (Cr) in Bodner, and removal of near-surface mesoscale diffusion (Redi) in the Lab Sea.

Description:

Clone of run 174 (#102) + removing near-surface mesoscale diffusion (Redi) only in the Lab Sea.

-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%
WAVE_ENHANCED_USTAR = True
USE_BODNER23 = True
USE_CR_GRID = True
CR_FILE = "mle-cr-tx2_3v2-v11_20250521.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
HBD_MASK = True

PS: MOM6 will look for hbd_mask.nc in INPUTDIR when HBD_MASK = True.

Mask in the near-surface mesoscale diffusion (Redi) is implemented in

SourceMods/src.mom/MOM_hor_bnd_diffusion.F90

Case directory:

• Locally (if still available):
  /glade/campaign/cesm/cesmdata/cseg/runs/cesm2_0/b.e30_beta06.B1850C_LTso.ne30_t232_wgx3.175

• On github:
  https://github.com/NCAR/cesm_dev/tree/b.e30_beta06.B1850C_LTso.ne30_t232_wgx3.175

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:

• Diags (if available):
  https://webext.cgd.ucar.edu/BLT1850/b.e30_beta06.B1850C_LTso.ne30_t232_wgx3.175/

Output:

• Raw output on derecho (if still available): /glade/derecho/scratch/hannay/archive/b.e30_beta06.B1850C_LTso.ne30_t232_wgx3.175/
• CAM Climos: /glade/campaign/cgd/amp/amwg/climo/b.e30_beta06.B1850C_LTso.ne30_t232_wgx3.175

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

Extra details: