b.e30_alpha09b.B1850C_MTso.ne30_t233_wgx3.349

[cecilehannay]

Purpose:
Evaluate the new CESM tag (alpha09b)

• some namelists mods
  vclubb_penta_solve_method = 2
  clubb_tridiag_solve_method = 2
  DIAG_COORD_DEF_RHO2 = "FILE:ocean_rho2_190917.nc,interfaces=rho2"
• Start from 347 at yr 113

---

Description:

Baseline with alpha09b + some namelists mods.

• start from 347 at year 113

./xmlchange RUN_REFCASE=b.e30_alpha09a.B1850C_MTso.ne30_t233_wgx3.347
./xmlchange RUN_REFDATE=0113-01-01
./xmlchange RUN_TYPE=hybrid
./xmlchange GET_REFCASE=true
./xmlchange RUN_REFDIR=cesm2_init

• user_nl_cam

seasalt_emis_scale		= 1.6D0
tracer_cnst_datapath           = '/glade/campaign/acom/acom-climate/tilmes/CAM7/b.e30_alpha08o.B1850C_MTt4s.ne30_t232_wgx3.330_branch.fix/atm/proc/TracerCnstCyclical1850'

tracer_cnst_file               = 'tracer_cnst_MTt4s_halons_3Dmonthly_1850climo330_c20260423.nc'

prescribed_ozone_datapath              = '/glade/campaign/acom/acom-climate/tilmes/CAM7/b.e30_alpha08o.B1850C_MTt4s.ne30_t232_wgx3.330_branch.fix/atm/proc/ozone_strataero_day_5_zm'

prescribed_ozone_file          = 'ozone_strataero_b.e30_alpha08o.B1850C_MTt4s.ne30_t232_wgx3.330_branch.fix_1850_5_30_climo_zm_5day_c260424.nc'

prescribed_strataero_datapath          = '/glade/campaign/acom/acom-climate/tilmes/CAM7/b.e30_alpha08o.B1850C_MTt4s.ne30_t232_wgx3.330_branch.fix/atm/proc/ozone_strataero_day_5_zm'

 prescribed_strataero_file              = 'ozone_strataero_b.e30_alpha08o.B1850C_MTt4s.ne30_t232_wgx3.330_branch.fix_1850_5_30_climo_zm_5day_c260424.nc'

stream_ndep_data_filename              = '/glade/campaign/acom/acom-climate/tilmes/CAM7/b.e30_alpha08o.B1850C_MTt4s.ne30_t232_wgx3.330_branch.fix/atm/proc/NDepositionCyclical1850/fndep_clm_MTt4s_3Dmonthly_1850climo330_c20260424.nc'

clubb_gamma_coef                =  0.298     
clubb_gamma_coefb               =  0.298   

clubb_penta_solve_method = 2
clubb_tridiag_solve_method = 2

• user_nl_clm

reseed_dead_plants = .true.
use_excess_ice_streams=.false. 

• user_nl_cpl

histaux_l2x1yrg = .true.
histaux_atm2med_file1_enabled = .true.
histaux_atm2med_file2_enabled = .true.
histaux_atm2med_file3_enabled = .true.
histaux_atm2med_file4_enabled = .true.
histaux_atm2med_file5_enabled = .true.
histaux_atm2med_file5_history_n = 1
histaux_atm2med_file5_history_option = 'ndays'
histaux_atm2med_file5_ntperfile = 1

• user_nl_cice

r_snw = 0.75
restart_fsd = .true.
histfreq = "m", "x", "x", "x", "x"

• user_nl_mom

DIAG_COORD_DEF_RHO2 = "FILE:ocean_rho2_190917.nc,interfaces=rho2"

---

Case directory:

• Locally (if still available):
  /glade/campaign/cesm/cesmdata/cseg/runs/cesm2_0/b.e30_alpha09b.B1850C_MTso.ne30_t233_wgx3.349

• On github:
  https://github.com/NCAR/cesm_dev/tree/b.e30_alpha09b.B1850C_MTso.ne30_t233_wgx3.349

---

Sandbox:

• Locally (if still available): /glade/work/hannay/cesm_tags/cesm3_0_alpha09b

• On github: https://github.com/ESCOMP/cesm/tree/cesm3_0_alpha09b

---

Diagnostics:

• Diags (if available):
  https://webext.cgd.ucar.edu/BMT1850/b.e30_alpha09b.B1850C_MTso.ne30_t233_wgx3.349/

---

Output:

• Raw output on derecho (if still available): /glade/derecho/scratch/hannay/archive/b.e30_alpha09b.B1850C_MTso.ne30_t233_wgx3.349/
• CAM Climos: /glade/campaign/cgd/amp/amwg/climo/b.e30_alpha09b.B1850C_MTso.ne30_t233_wgx3.349

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