Comparison with OM4 - Githubissues

AndyHoggANU commented 2 years ago

We should carefully crosschecked namelist parameters against OM4 (and panant?) case to confirm we are happy with these parameters.

angus-g commented 2 years ago

Here's a somewhat randomly-ordered list of parameters that differ from OM4. I've highlighted in bold the ones that I'd assume are responsible for the most significant differences between the two configurations. There are a lot of parameters dedicated to recovering a specific set of old answers, but I don't think we need to worry about them, because it was just from a numerics change that applies near roundoff, not a significant effect at all. I can provide the parameter documentation for anything that sounds interesting, however.

Parameter	anu-tub	OM4
`THICKNESSDIFFUSE`	False	True
`THICKNESSDIFFUSE_FIRST`	False	True
`DT_THERM`	3600.0	7200.0
`INTERPOLATION_SCHEME`	PPM_H4	P1M_H2
`USE_MEKE`	False	True
`CHANNEL_DRAG`	False	True
`LAPLACIAN`	False	True
`THERMO_SPANS_COUPLING`	False	True
`DTBT_RESET_PERIOD`	3600.0	7200.0
`FRAZIL`	False	True
`DO_GEOTHERMAL`	False	True
`MIN_SALINITY`	0.0	0.01
`USE_PSURF_IN_EOS`	True	False
`BAD_VAL_SSS_MAX`	45.0	75.0
`BAD_VAL_SST_MAX`	40.0	55.0
`BAD_VAL_SST_MIN`	-6.0	-3.0
`USE_STORED_SLOPES`	False	True
`INTERNAL_WAVE_SPEED_BETTER_EST`	True	False
`AH`	5.0E+09	0.0
`MIXEDLAYER_RESTRAT`	False	True
`USE_LEGACY_DIABATIC_DRIVER`	False	True
`KD_MIN_TR`	2.0E-06	1.5E-06
`INT_TIDE_DISSIPATION`	False	True
`HENYEY_IGW_BACKGROUND`	False	True
`KD`	2.0E-05	1.5E-05
`KDML`	2.0E-05	1.5E-05
`KD_KAPPA_SHEAR_0`	2.0E-05	1.5E-05
`KD_TRUNC_KAPPA_SHEAR`	2.0E-07	1.5E-07
`PRESSURE_DEPENDENT_FRAZIL`	False	True
`VAR_PEN_SW`	False	True
`EPBL_MLD_BISECTION`	False	True
`PEN_SW_ABSORB_MINTHICK`	1.0	0.001
`FLUXCONST`	0.2	0.1667
`FLUXCONST_S`	0.0	-
`FLUXCONST_SALT`	-	0.1667
Old answers
`DEFAULT_2018_ANSWERS`	False	True
`SURFACE_2018_ANSWERS`	False	True
`REMAP_UV_USING_OLD_ALG`	False	True
`REMAPPING_2018_ANSWERS`	False	True
`SET_VISC_2018_ANSWERS`	False	True
`USE_GM_WORK_BUG`	False	True
`HOR_VISC_2018_ANSWERS`	False	True
`VERT_FRICTION_2018_ANSWERS`	False	True
`BAROTROPIC_2018_ANSWERS`	False	True
`BT_USE_OLD_CORIOLIS_BRACKET_BUG`	False	True
`SET_DIFF_2018_ANSWERS`	False	True
`KAPPA_SHEAR_ITER_BUG`	False	True
`KAPPA_SHEAR_ALL_LAYER_TKE_BUG`	False	True
`EPBL_2018_ANSWERS`	False	True
`OPTICS_2018_ANSWERS`	False	True

AndyHoggANU commented 2 years ago

just to note, i'm pretty happy with these parameter differences, so will close this for now.

AndyHoggANU / anu-tub

Comparison with OM4 #3