b.e30_alpha07c_cesm.B1850C_LTso.ne30_t232_wgx3.232

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#191 opened on Oct 6, 2025 2 comments 0 reactions 0 assignees View on GitHub

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Assessment

Difficulty: 5/5
Estimated time: Over a week
Newbie friendliness: 25/100

Issue type: Feature
Clarity: Needs clarification
Activity status: Stale
Domain: data

Research direction

Start with the Purpose and Description, then review the user_nl_cpl, user_nl_clm, user_nl_cam, and user_nl_cice configuration sections. Determine how to run this clone with wave attenuation masked in the specified regions and assess the resulting effect on the Lab Sea freeze.

Written by the indexing model from the issue text.

Description

Purpose:
Assess the non-local (Arctic + Baffin Bay + East Greenland + Lab Sea) effect of wave attenuation on the Lab Sea freeze.

Description:
Clone of 229 #188 + also mask out wave attenuation in Baffin Bay, east of Greenland, and Arctic Ocean (see mask below).

user_nl_cpl:
wav_coupling_to_cice = .true.
histaux_l2x1yrg = .true.

user_nl_clm:

! These are not in an alpha tag yet, but would be ideal to start running with
paramfile = '/glade/campaign/cesm/cesmdata/cseg/inputdata/lnd/clm2/paramdata/ctsm60_params_cal115_c250813.nc'
glcmec_downscale_longwave = .false.

! This should be default in alpha07b, but aren't used in 198 which is reverted to clm5.3 data
!fsurdat= '/glade/campaign/cesm/cesmdata/inputdata/lnd/clm2/initdata_esmf/ctsm5.4/ctsm5.4_5.3.068_PPEcal115f09_118_pSASU.clm2.r.0161-01-01-00000.nc'

snow_thermal_cond_lake_method = 'Sturm1997'

use_init_interp = .true.
reseed_dead_plants = .true.

finidat= '/glade/campaign/cesm/cesmdata/inputdata/lnd/clm2/initdata_esmf/ctsm5.4/ctsm5.4_5.3.068_PPEcal115_116_pSASU.clm2.r.0161-01-01-00000.nc'

user_nl_cam:

mfilt               =       0,       5,     20,      40,      12,      120,      1,   1
nhtfrq              =       0,     -24,    -24,      -3,       0,       -2,      0,  -8760
ndens               =       2,       2,      2,       2,       2,        1,      2,   1
interpolate_output  =  .true.,  .true., .true.,  .true., .false.,   .true.,     .true.
interpolate_nlat    =     192,     192,    192,     192,      192,     192,      192
interpolate_nlon    =     288,     288,    288,     288,      288,     288,      288

empty_htapes = .true.

fincl1 = 'ACTNI', 'ACTNL', 'ACTREI', 'ACTREL', 'AODDUST', 'AODDUSTdn','AODVIS', 'AODVISdn','BURDENBC', 
'BURDENDUST', 'BURDENPOM', 'BURDENSEASALT',
'BURDENSO4', 'BURDENSOA', 'CAPE', 'CCN3', 'CDNUMC', 'CH4', 'CLDHGH', 'CLDICE', 'CLDLIQ', 'CLDLOW', 
'CLDMED', 'CLDTOT', 'CLOUD', 'CMFMC_DP',
'CT_H2O', 'DCQ', 'DQCORE', 'DTCOND', 'DTCORE', 'DTV', 'EVAPPREC', 'EVAPSNOW', 'FCTI', 'FCTL', 'FICE', 'FLDS', 'FLNS', 'FLNSC', 'FLNT', 'FLNTC', 'FLUT',
'FREQZM', 'FSDS', 'FSDSC', 'FSNS', 'FSNSC', 'FSNT', 'FSNTC', 'FSNTOA', 'ICEFRAC', 'LANDFRAC', 'LHFLX', 'LWCF', 'MPDICE', 'MPDLIQ', 'MPDQ', 'MPDT',
'OCNFRAC', 'OMEGA', 'OMEGA500', 'PBLH', 'PHIS', 'PINT', 'PMID', 'PRECC', 'PRECL', 'PRECSC', 'PRECSL', 'PRECT', 'PS', 'PSL', 'PTEQ', 'PTTEND', 'Q',
'QFLX', 'QRL', 'QRS', 'QTGW', 'RCMTEND_CLUBB', 'RELHUM', 'RVMTEND_CLUBB', 'SHFLX', 'SOLIN', 'SST', 
'STEND_CLUBB', 'SWCF',
'T', 'TAUX', 'TAUY', 'TFIX', 'TGCLDIWP', 'TGCLDLWP', 'TMQ', 'TREFHT', 'TS', 'TTGW', 'U', 'U10', 
'UBOT', 'UTGWORO', 'UTGW_TOTAL',
'V', 'VBOT', 'VTGWORO', 'VTGW_TOTAL', 'WPRTP_CLUBB', 'WPTHLP_CLUBB', 'Z3', 'ZMDQ', 'ZMDT', 'N2O',
 'CO2','CFC11','CFC12',
'AODVISdn','CCN3', 'CDNUMC', 'H2O', 'NUMICE', 'NUMLIQ','OMEGA500',
 'AQSO4_H2O2','AQSO4_O3', 'bc_a1', 'bc_a4', 'dst_a1', 'dst_a2', 'dst_a3', 'ncl_a1',
'ncl_a1', 'ncl_a2', 'ncl_a3', 'pom_a1', 'pom_a4', 'so4_a1', 'so4_a2', 'so4_a3', 'soa_a2' ,
'soa_a1', 'num_a1', 'num_a2', 'num_a3', 'num_a4',
'bc_a1SFWET', 'bc_a4SFWET', 'dst_a1SFWET', 'dst_a2SFWET', 'dst_a3SFWET', 'ncl_a1SFWET',
'ncl_a2SFWET', 'ncl_a3SFWET', 'pom_a1SFWET', 'pom_a4SFWET', 'so4_a1SFWET', 'so4_a2SFWET', 'so4_a3SFWET', 'soa_a1SFWET',
'soa_a2SFWET', 'bc_c1SFWET', 'bc_c4SFWET', 'dst_c1SFWET', 'dst_c2SFWET', 'dst_c3SFWET', 'ncl_c1SFWET', 'ncl_c2SFWET',
'ncl_c3SFWET', 'pom_c1SFWET', 'pom_c4SFWET', 'so4_c1SFWET', 'so4_c2SFWET', 'so4_c3SFWET', 'soa_c1SFWET', 'soa_c2SFWET',
'bc_a1DDF', 'bc_a4DDF', 'dst_a1DDF', 'dst_a2DDF', 'dst_a3DDF', 'ncl_a1DDF', 'ncl_a2DDF', 'ncl_a3DDF',
'pom_a1DDF', 'pom_a4DDF', 'so4_a1DDF', 'so4_a2DDF', 'so4_a3DDF', 'soa_a1DDF', 'soa_a2DDF',
'so4_a1_CLXF', 'so4_a2_CLXF', 'SFbc_a4', 'SFpom_a4', 'SFso4_a1', 'SFso4_a2',
'so4_a1_sfgaex1', 'so4_a2_sfgaex1', 'so4_a3_sfgaex1', 'soa_a1_sfgaex1', 'soa_a2_sfgaex1',
'SFdst_a1','SFdst_a2', 'SFdst_a3', 'SFncl_a1', 'SFncl_a2', 'SFncl_a3',
'num_a2_sfnnuc1', 'SFSO2', 'OCN_FLUX_DMS', 'SAD_SULFC', 'SAD_TROP', 'SAD_AERO',
'AODVISstdn', 'REFF_AERO', 'so4_a1', 'so4_a2', 'SAD_AERO', 'PS', 'TROP_P', 'FSNTOAC',
'CME', 'CMEIOUT'

fincl3 = 'PRECT', 'PRECC', 'FLUT', 'U850', 'U200', 'V850', 'V200', 'OMEGA500', 'TS', 'SST', 'PSL', 'Z500'

fincl4 =  'PRECC','PRECL'

fincl5 = 'Uzm','Vzm','Wzm','THzm', 'VTHzm','WTHzm','UVzm','UWzm'
phys_grid_ctem_nfreq=-6
phys_grid_ctem_zm_nbas=120
phys_grid_ctem_za_nlat=90


solar_irrad_data_file= '/glade/campaign/cesm/development/cross-wg/inputdata/SolarForcingCMIP7piControl_c20250103.nc'

micro_mg_dcs= 600.D-6
cldfrc_dp1 =  0.05
clubb_c8 = 4.6

bnd_topo = "/glade/campaign/cgd/amp/pel/topo/cesm3/ne30pg3_gmted2010_modis_bedmachine_nc3000_Laplace0100_noleak_greendlndantarcsgh30fac2.50_20250708.nc"

ext_frc_specifier = 'bc_a4 -> /glade/campaign/acom/MUSICA/emis/cmip7/ne30/CEDS-CMIP-2025-04-18/bc_a4-em-AIR-anthro_input4MIPs_emissions_CMIP_CEDS-CMIP-2025-04-18_gn_175001-202312.nc',
         'num_a4 -> /glade/campaign/acom/MUSICA/emis/cmip7/ne30/CEDS-CMIP-2025-04-18/num_bc_a4-em-AIR-anthro_input4MIPs_emissions_CMIP_CEDS-CMIP-2025-04-18_gn_175001-202312.nc',
         'SO2 -> /glade/campaign/acom/MUSICA/emis/cmip7/ne30/CEDS-CMIP-2025-04-18/SO2-em-AIR-anthro_input4MIPs_emissions_CMIP_CEDS-CMIP-2025-04-18_gn_175001-202312.nc',
         'so4_a1 -> /glade/campaign/acom/MUSICA/emis/cmip7/ne30/CEDS-CMIP-2025-04-18/so4_a1_ene_vertical-em-anthro_input4MIPs_emissions_CMIP_CEDS-CMIP-2025-04-18_gn_175001-202312.nc',
         'num_a1 -> /glade/campaign/acom/MUSICA/emis/cmip7/ne30/CEDS-CMIP-2025-04-18/num_so4_a1_ene_vertical-em-anthro_input4MIPs_emissions_CMIP_CEDS-CMIP-2025-04-18_gn_175001-202312.nc',
         'num_a1 -> /glade/campaign/cesm/cesmdata/inputdata/atm/cam/chem/emis/historical_ne30pg3/emissions-cmip6_num_a1_so4_contvolcano_vertical_850-5000_ne30pg3_c20200125.nc',
         'num_a2 -> /glade/campaign/cesm/cesmdata/inputdata/atm/cam/chem/emis/historical_ne30pg3/emissions-cmip6_num_a2_so4_contvolcano_vertical_850-5000_ne30pg3_c20200125.nc',
         'so4_a1 -> /glade/campaign/cesm/cesmdata/inputdata/atm/cam/chem/emis/historical_ne30pg3/emissions-cmip6_so4_a1_contvolcano_vertical_850-5000_ne30pg3_c20200125.nc',
         'so4_a2 -> /glade/campaign/cesm/cesmdata/inputdata/atm/cam/chem/emis/historical_ne30pg3/emissions-cmip6_so4_a2_contvolcano_vertical_850-5000_ne30pg3_c20200125.nc',
         'SO2 -> /glade/campaign/cesm/cesmdata/inputdata/atm/cam/chem/emis/historical_ne30pg3/emissions-cmip6_SO2_contvolcano_vertical_850-5000_ne30pg3_c20200125.nc',

srf_emis_specifier = 'bc_a4 -> /glade/campaign/acom/MUSICA/emis/cmip7/ne30/CEDS-CMIP-2025-04-18/bc_a4-em-anthro_input4MIPs_emissions_CMIP_CEDS-CMIP-2025-04-18_gn_175001-202312.nc',
         'bc_a4 -> /glade/campaign/acom/MUSICA/emis/cmip7/ne30/DRES-CMIP-BB4CMIP7-2-0_smoothed/bc_a4_smoothed_input4MIPs_emissions_CMIP_DRES-CMIP-BB4CMIP7-2-0_gn_175001-202112.nc',
         'pom_a4 -> /glade/campaign/acom/MUSICA/emis/cmip7/ne30/CEDS-CMIP-2025-04-18/pom_a4-em-anthro_input4MIPs_emissions_CMIP_CEDS-CMIP-2025-04-18_gn_175001-202312.nc',
         'pom_a4 -> /glade/campaign/acom/MUSICA/emis/cmip7/ne30/DRES-CMIP-BB4CMIP7-2-0_smoothed/pom_a4_smoothed_input4MIPs_emissions_CMIP_DRES-CMIP-BB4CMIP7-2-0_gn_175001-202112.nc',
         'num_a4 -> /glade/campaign/acom/MUSICA/emis/cmip7/ne30/CEDS-CMIP-2025-04-18/num_bc_a4-em-anthro_input4MIPs_emissions_CMIP_CEDS-CMIP-2025-04-18_gn_175001-202312.nc',
         'num_a4 -> /glade/campaign/acom/MUSICA/emis/cmip7/ne30/DRES-CMIP-BB4CMIP7-2-0_smoothed/num_bc_a4_smoothed_input4MIPs_emissions_CMIP_DRES-CMIP-BB4CMIP7-2-0_gn_175001-202112.nc',
         'num_a4 -> /glade/campaign/acom/MUSICA/emis/cmip7/ne30/CEDS-CMIP-2025-04-18/num_pom_a4-em-anthro_input4MIPs_emissions_CMIP_CEDS-CMIP-2025-04-18_gn_175001-202312.nc',
         'num_a4 -> /glade/campaign/acom/MUSICA/emis/cmip7/ne30/DRES-CMIP-BB4CMIP7-2-0_smoothed/num_pom_a4_smoothed_input4MIPs_emissions_CMIP_DRES-CMIP-BB4CMIP7-2-0_gn_175001-202112.nc',
         'num_a1-> /glade/campaign/acom/MUSICA/emis/cmip7/ne30/CEDS-CMIP-2025-04-18/num_so4_a1_ag-em-anthro_input4MIPs_emissions_CMIP_CEDS-CMIP-2025-04-18_gn_175001-202312.nc',
         'num_a1-> /glade/campaign/acom/MUSICA/emis/cmip7/ne30/CEDS-CMIP-2025-04-18/num_so4_a1_ship_slv-em-anthro_input4MIPs_emissions_CMIP_CEDS-CMIP-2025-04-18_gn_175001-202312.nc',
         'num_a2-> /glade/campaign/acom/MUSICA/emis/cmip7/ne30/CEDS-CMIP-2025-04-18/num_so4_a2_res_trs-em-anthro_input4MIPs_emissions_CMIP_CEDS-CMIP-2025-04-18_gn_175001-202312.nc',
         'so4_a1-> /glade/campaign/acom/MUSICA/emis/cmip7/ne30/CEDS-CMIP-2025-04-18/so4_a1_ag_ship_slv-em-anthro_input4MIPs_emissions_CMIP_CEDS-CMIP-2025-04-18_gn_175001-202312.nc',
         'so4_a2-> /glade/campaign/acom/MUSICA/emis/cmip7/ne30/CEDS-CMIP-2025-04-18/so4_a2_res_trs-em-anthro_input4MIPs_emissions_CMIP_CEDS-CMIP-2025-04-18_gn_175001-202312.nc',
         'so4_a1-> /glade/campaign/acom/MUSICA/emis/cmip7/ne30/DRES-CMIP-BB4CMIP7-2-0_smoothed/SO4_smoothed_input4MIPs_emissions_CMIP_DRES-CMIP-BB4CMIP7-2-0_gn_175001-202112.nc',
         'num_a1-> /glade/campaign/acom/MUSICA/emis/cmip7/ne30/DRES-CMIP-BB4CMIP7-2-0_smoothed/num_SO4_smoothed_input4MIPs_emissions_CMIP_DRES-CMIP-BB4CMIP7-2-0_gn_175001-202112.nc',
         'SO2 -> /glade/campaign/acom/MUSICA/emis/cmip7/ne30/CEDS-CMIP-2025-04-18/SO2-em-anthro_input4MIPs_emissions_CMIP_CEDS-CMIP-2025-04-18_gn_175001-202312.nc',
         'SO2 -> /glade/campaign/acom/MUSICA/emis/cmip7/ne30/DRES-CMIP-BB4CMIP7-2-0_smoothed/SO2_smoothed_input4MIPs_emissions_CMIP_DRES-CMIP-BB4CMIP7-2-0_gn_175001-202112.nc',
         'SOAE -> 0.5954D0*/glade/campaign/acom/MUSICA/emis/cmip7/ne30/DRES-CMIP-BB4CMIP7-2-0_smoothed/ISOP_smoothed_input4MIPs_emissions_CMIP_DRES-CMIP-BB4CMIP7-2-0_gn_175001-202112.nc',
         'SOAE -> 2.5592D0*/glade/campaign/acom/MUSICA/emis/cmip7/ne30/DRES-CMIP-BB4CMIP7-2-0_smoothed/BENZENE_smoothed_input4MIPs_emissions_CMIP_DRES-CMIP-BB4CMIP7-2-0_gn_175001-202112.nc',
         'SOAE -> 2.5592D0*/glade/campaign/acom/MUSICA/emis/cmip7/ne30/CEDS-CMIP-2025-04-18/BENZENE-VOC-anthro_input4MIPs_emissions_CMIP_CEDS-CMIP-2025-04-18-supplemental_gn_175001-202312.nc',
         'SOAE -> 8.5371D0*/glade/campaign/acom/MUSICA/emis/cmip7/ne30/DRES-CMIP-BB4CMIP7-2-0_smoothed/IVOC_smoothed_input4MIPs_emissions_CMIP_DRES-CMIP-BB4CMIP7-2-0_gn_175001-202112.nc',
         'SOAE -> 8.5371D0*/glade/campaign/acom/MUSICA/emis/cmip7/ne30/CEDS-CMIP-2025-04-18/IVOC-em-anthro_input4MIPs_emissions_CMIP_CEDS-CMIP-2025-04-18_gn_175001-202312.nc',
         'SOAE -> 16.650D0*/glade/campaign/acom/MUSICA/emis/cmip7/ne30/DRES-CMIP-BB4CMIP7-2-0_smoothed/SVOC_smoothed_input4MIPs_emissions_CMIP_DRES-CMIP-BB4CMIP7-2-0_gn_175001-202112.nc',
         'SOAE -> 16.650D0*/glade/campaign/acom/MUSICA/emis/cmip7/ne30/CEDS-CMIP-2025-04-18/SVOC-em-anthro_input4MIPs_emissions_CMIP_CEDS-CMIP-2025-04-18_gn_175001-202312.nc',
         'SOAE -> 8.2367D0*/glade/campaign/acom/MUSICA/emis/cmip7/ne30/DRES-CMIP-BB4CMIP7-2-0_smoothed/TOLUENE_smoothed_input4MIPs_emissions_CMIP_DRES-CMIP-BB4CMIP7-2-0_gn_175001-202112.nc',
         'SOAE -> 8.2367D0*/glade/campaign/acom/MUSICA/emis/cmip7/ne30/CEDS-CMIP-2025-04-18/TOLUENE-VOC-anthro_input4MIPs_emissions_CMIP_CEDS-CMIP-2025-04-18-supplemental_gn_175001-202312.nc',
         'SOAE -> 6.5013D0*/glade/campaign/acom/MUSICA/emis/cmip7/ne30/DRES-CMIP-BB4CMIP7-2-0_smoothed/XYLENES_smoothed_input4MIPs_emissions_CMIP_DRES-CMIP-BB4CMIP7-2-0_gn_175001-202112.nc',
         'SOAE -> 6.5013D0*/glade/campaign/acom/MUSICA/emis/cmip7/ne30/CEDS-CMIP-2025-04-18/XYLENES-VOC-anthro_input4MIPs_emissions_CMIP_CEDS-CMIP-2025-04-18-supplemental_gn_175001-202312.nc',
         'SOAE -> 5.1004D0*/glade/campaign/acom/MUSICA/emis/cmip7/ne30/DRES-CMIP-BB4CMIP7-2-0_smoothed/MTERP_smoothed_input4MIPs_emissions_CMIP_DRES-CMIP-BB4CMIP7-2-0_gn_175001-202112.nc'

clubb_gamma_coef        =  0.30000001

user_nl_cice:

ice_ic = "/glade/derecho/scratch/gmarques/b.e30_alpha07c_cesm.B1850C_LTso.ne30_t232_wgx3.232/run/INPUT/g.e30_a07c_cesm.GJRAv4.TL319_t232_wgx3_hycom1_N75.2025.130.cice.r.0009-01-01-00000.nc"

user_nl_mom:

HREF_FOR_MLD = 10.0
INPUTDIR = "INPUT"

KPP%
KPP_CVt2 = 1.8   ! 1.0
ENHANCE_DIFFUSION = False
%KPP

MLE%
BODNER_MSTAR = 0.5
BODNER_NSTAR = 0.066
WAVE_ENHANCED_USTAR = True
CR = 0.01
CR_FILE = "mle-cr-mask_20250627.nc"
%MLE

SMAGORINSKY_KH = True
SMAG_LAP_CONST = 0.15
AH = 1.0e+12
LEITH_BI_CONST = 90.0
LEITHY_CK = 0.0
DO_SKEB = True
SKEB_NPASS = 8
SKEB_USE_GM = True
SKEB_GM_COEF = 0.75
MEKE_GMCOEFF = 0.25
SKEB_USE_FRICT = False
SKEB_FRICT_COEF = 0.0
ALE_COORDINATE_CONFIG = "HYBRID:hybrid_75layer_zstar2.50m-2025-04-04.nc,sigma2,dz"
MAX_LAYER_THICKNESS_CONFIG = "FILE:dz_max.nc,dz"
MAXIMUM_INT_DEPTH_CONFIG = "FILE:lev.nc,Z"

! CESM3 target
CEMP_NL = 3.5
DEPTH_SCALED_KHTH_H0 = 500
RHO_PGF_REF_BUG = False
REMAPPING_SCHEME = "C_PPM_CW"
VELOCITY_REMAPPING_SCHEME = "C_PPM_CW"
!HBD_REMAPPING_SCHEME = "C_PPM_CW"
USE_STANLEY_ISO = False
USE_STANLEY_GM = False


! set above
! BODNER_MSTAR = 0.5
! BODNER_NSTAR = 0.066
! WAVE_ENHANCED_USTAR = True

! Sensitivity to interior mixing settings and background @ Banda Sea
BCKGRND_VDC_BAN = 5.0E-04
NU_ZERO = 0.0025
RI_ZERO = 0.5

CVMix_CONVECTION%
BV_SQR_CONV = -1.0e-8
%CVMix_CONVECTION

THICKNESS_CONFIG = thickness_file
VELOCITY_CONFIG = file
TS_CONFIG = file

INIT_LAYERS_FROM_Z_FILE = False

THICKNESS_FILE = "g.e30_a07c_cesm.GJRAv4.TL319_t232_wgx3_hycom1_N75.2025.130.mom6.r.0009-01-01-00000.nc"
TS_FILE = "g.e30_a07c_cesm.GJRAv4.TL319_t232_wgx3_hycom1_N75.2025.130.mom6.r.0009-01-01-00000.nc"
VELOCITY_FILE = "g.e30_a07c_cesm.GJRAv4.TL319_t232_wgx3_hycom1_N75.2025.130.mom6.r.0009-01-01-00000.nc"

TEMP_IC_VAR = "Temp"
SALT_IC_VAR = "Salt"

RESTART_CHECKSUMS_REQUIRED = FALSE

Case directory:

Locally (if still available):
/glade/campaign/cesm/cesmdata/cseg/runs/cesm2_0/b.e30_alpha07c_cesm.B1850C_LTso.ne30_t232_wgx3.232
On github:
https://github.com/NCAR/cesm_dev/tree/b.e30_alpha07c_cesm.B1850C_LTso.ne30_t232_wgx3.232

Sandbox:

Locally (if still available): /glade/work/gmarques/cesm.sandboxes/cesm3_0_alpha07c_cesm3

Diagnostics:

Diags (if available):
https://webext.cgd.ucar.edu/BLT1850/b.e30_alpha07c_cesm.B1850C_LTso.ne30_t232_wgx3.232/

Output:

Raw output on derecho (if still available): /glade/derecho/scratch/gmarques/archive/b.e30_alpha07c_cesm.B1850C_LTso.ne30_t232_wgx3.232/
CAM Climos: /glade/campaign/cgd/amp/amwg/climo/b.e30_alpha07c_cesm.B1850C_LTso.ne30_t232_wgx3.232

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

Extra details:

Dominant language: No language data
Stars: 11
Forks: 3
PR merge metrics: No merged PRs in 30d

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unionai-oss/pandera#2511 · Opened Sep 20, 2026
codes/682-182-76.json and codes/390-82-32.json are over-stated by one: each duplicates a lighter-bounded entry Open

Difficulty 2/5 1-3 hours Newbie friendliness 74/100

unitaryfoundation/qldpc-challenge#1651 · Opened Sep 19, 2026
tau_c_2010 (MacKinnon 2010, Table 2) differs from the paper in five places, including N=2 1% β2 = −33.527 (paper: −22.527) Open

Difficulty 1/5 Under an hour Newbie friendliness 90/100

statsmodels/statsmodels#10271 · Opened Sep 19, 2026

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