DERECHO + Sturm_vegMods + back off froot_leaf 50% + back_off FUN_fracfixers 50% + new SNICAR + SNICAR param changes w/xdrdt=5 (ctsm51_ctsm51d160_1deg_GSWP3V1_ABpt5Cpt5DE_blk_A5BCD_1850AD)

[olyson]

Description:
Same as ctsm51_ctsm51d160_1deg_GSWP3V1_ABCDE_blk_A5BCD_1850AD but revert froot_leaf (C) and FUN_fracfixers (D) 50% of the way back to defaults.

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Case directory:
Locally:
/glade/work/oleson/ctsm5.1.dev160/cime/scripts/ctsm51_ctsm51d160_1deg_GSWP3V1_ABpt5Cpt5DE_blk_A5BCD_1850AD

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Sandbox:
Locally:
/glade/work/oleson/ctsm5.1.dev160

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user_nl_ changes:

user_nl_clm:

! Full output
hist_nhtfrq = 0
hist_mfilt = 1
hist_empty_htapes = .false.
hist_fincl1 = 'FSDSND','FSDSVD','FSDSNI','FSDSVI','RAIN_FROM_ATM','SNOW_FROM_ATM','FLDS_NOT_DOWNSCALED','ZBOT','Tair_from_atm','Thair_from_atm','QBOT_NOT_DOWNSCALED','PBOT_NOT_DOWNSCALED','Rho_from_atm','PCO2','UWIND','VWIND','BCPHIDRY','BCPHODRY','BCPHIWET','OCPHIDRY','OCPHODRY','OCPHIWET','DSTWET1','DSTDRY1','DSTWET2','DSTDRY2','DSTWET3','DSTDRY3','DSTWET4','DSTDRY4','ATM_TOPO'

!----------------------------------------------------------------------------------
! Settings from cmip6_carbon_isotopes
! CAN ONLY USE THIS IF STARTING FROM AN INITIAL FILE THAT HAS ISOTOPES
!----------------------------------------------------------------------------------

use_c13 = .true.
use_c14 = .true.
use_c13_timeseries = .true.
use_c14_bombspike = .true.
fsurdat = '/glade/campaign/cesm/cesmdata/cseg/inputdata/lnd/clm2/surfdata_esmf/ctsm5.2.0/surfdata_0.9x1.25_hist_78pfts_CMIP6_1850_c230517.nc'
paramfile = '/glade/campaign/cgd/tss/people/oleson/modify_param/ctsm51_params.c231117.norevert.nc.ABpt5Cpt5D_blk_A5BCD.nc'
snicar_snobc_intmix = .true.
snow_thermal_cond_method = 'Sturm1997'
z0param_method = 'Meier2022'

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SourceMods:

src.clm/atm2lndType.F90: Add some additional history fields
src.clm/clm_varpar.F90: nlevurb=5 -> nlevurb=10
src.clm/surfrdMod.F90: Remove read of PFTDATA_MASK
src.clm/Wateratm2lndType.F90: Add some additional history fields
src.clm/CNPhenologyMod.F90 decreasing temperature thresholds to -3C, reducing the minimum critical daylength by 25%, doubling the snow threshold
src.clm/controlMod.F90 remove error associated with snicar_snobc_intmix
src.clm/SnowSnicarMod.F90 set flg_snoage_scl to .true. so that xdrdt change takes effect

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Diagnostics:

https://webext.cgd.ucar.edu/I1850/ctsm51_ctsm51d160_1deg_GSWP3V1_ABpt5Cpt5DE_blk_A5BCD_1850AD/lnd/ctsm51_ctsm51d160_1deg_GSWP3V1_ABpt5Cpt5DE_blk_A5BCD_1850AD_311_320-ctsm51_ctsm51d160_1deg_GSWP3V1_ABCDE_blk_A5BCD_1850AD_311_320/setsIndex.html

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Output:
Output (if still available):
/glade/derecho/scratch/oleson/archive/ctsm51_ctsm51d160_1deg_GSWP3V1_ABpt5Cpt5DE_blk_A5BCD_1850AD/

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Contacts:
@olyson
@wwieder

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Extra details:
I've designated this combination simulation as ABpt5Cpt5DE_blk_A5BCD, where the first ABpt5Cpt5DE is:
A - SturmSnowtk (implemented via namelist snow_thermal_cond_method = 'Sturm1997')
B - decidphenotrig (implemented via src.clm/CNPhenologyMod.F90)
pt5C - back off frootleaf(11:12) to 50% of difference between default (1.5) and C (1.2) - so, 1.35 (implemented via ctsm51_params.c231117.norevert.nc.ABpt5Cpt5D_blk_A5BCD.nc)
pt5D - back off FUNfracfixers(11:12) to 50% of difference between default (0.25) and D (1.0) - so, 0.625 (implemented via ctsm51_params.c2311117.norevert.nc.ABpt5Cpt5D_blk_A5BCD.nc)
E - new SNICAR (on by default)
blk - snicar_snobc_intmix = .true. (implemented via namelist, per Issue #36 )
and the next ABCD is (per Issue #36 )
A5 - xdrdt = 5 (implemented via ctsm51_params.c231117.norevert.nc.ABpt5Cpt5D_blk_A5BCD.nc and takes effect by code change to SnowSnicarMod.F90)
B - scvng_fct_mlt_sf = 0.5 (implemented via ctsm51_params.c2311117.norevert.nc.ABpt5Cpt5D_blk_A5BCD.nc)
C - snw_rds_refrz = 1500 (implemented via ctsm51_params.c231117.norevert.nc.ABpt5Cpt5D_blk_A5BCD.nc)
D - fresh_snw_rds_max = 400._r8 (implemented via ctsm51_params.c231117.norevert.nc.ABpt5Cpt5D_blk_A5BCD.nc)

See discussion in #3
AD spunup to 2.79% disequilibrium, 320 years
pAD spunup to X.XX% disequilibrium, X years