Swap DEFAULT_ANSWER_DATE for DEFAULT_2018_ANSWERS

  Replace lines setting DEFAULT_2018_ANSWERS in the MOM_input files for 12
experiments with equivalent values of DEFAULT_ANSWER_DATE.  This is a necessary
prelimiary to obsoleting all the _2018_ANSWERS runtime parameters.  Because of
the atypical way that the default for PORBAR_ANSWER_DATE is set, this also has
to be set explicitly to keep the previous settings.  All answers are bitwise
identical, but there are differences in the contents of the MOM_parameter_doc
files for these cases.

coupled_AM2_LM3_SIS/AM2_MOM6i_1deg/MOM_input

@@ -65,8 +65,8 @@ C_P = 3925.0                    !   [J kg-1 K-1] default = 3991.86795711963
                                 ! The heat capacity of sea water, approximated as a constant. This is only used
                                 ! if ENABLE_THERMODYNAMICS is true. The default value is from the TEOS-10
                                 ! definition of conservative temperature.
-DEFAULT_2018_ANSWERS = True     !   [Boolean] default = True
-                                ! This sets the default value for the various _2018_ANSWERS parameters.
+DEFAULT_ANSWER_DATE = 20181231  ! default = 99991231
+                                ! This sets the default value for the various _ANSWER_DATE parameters.
 SAVE_INITIAL_CONDS = True       !   [Boolean] default = False
                                 ! If true, write the initial conditions to a file given by IC_OUTPUT_FILE.
 
@@ -282,6 +282,12 @@ KHTH = 10.0                     !   [m2 s-1] default = 0.0
 KHTH_MAX = 900.0                !   [m2 s-1] default = 0.0
                                 ! The maximum horizontal thickness diffusivity.
 
+! === module MOM_porous_barriers ===
+PORBAR_ANSWER_DATE = 99991231   ! default = 20181231
+                                ! The vintage of the porous barrier weight function calculations.  Values below
+                                ! 20220806 recover the old answers in which the layer averaged weights are not
+                                ! strictly limited by an upper-bound of 1.0 .
+
 ! === module MOM_continuity ===
 
 ! === module MOM_continuity_PPM ===

coupled_AM2_LM3_SIS/CM2G63L/MOM_input

@@ -65,8 +65,8 @@ C_P = 3925.0                    !   [J kg-1 K-1] default = 3991.86795711963
                                 ! The heat capacity of sea water, approximated as a constant. This is only used
                                 ! if ENABLE_THERMODYNAMICS is true. The default value is from the TEOS-10
                                 ! definition of conservative temperature.
-DEFAULT_2018_ANSWERS = True     !   [Boolean] default = True
-                                ! This sets the default value for the various _2018_ANSWERS parameters.
+DEFAULT_ANSWER_DATE = 20181231  ! default = 99991231
+                                ! This sets the default value for the various _ANSWER_DATE parameters.
 SAVE_INITIAL_CONDS = True       !   [Boolean] default = False
                                 ! If true, write the initial conditions to a file given by IC_OUTPUT_FILE.
 
@@ -282,6 +282,12 @@ KHTH = 10.0                     !   [m2 s-1] default = 0.0
 KHTH_MAX = 900.0                !   [m2 s-1] default = 0.0
                                 ! The maximum horizontal thickness diffusivity.
 
+! === module MOM_porous_barriers ===
+PORBAR_ANSWER_DATE = 99991231   ! default = 20181231
+                                ! The vintage of the porous barrier weight function calculations.  Values below
+                                ! 20220806 recover the old answers in which the layer averaged weights are not
+                                ! strictly limited by an upper-bound of 1.0 .
+
 ! === module MOM_continuity ===
 
 ! === module MOM_continuity_PPM ===

coupled_AM2_LM3_SIS2/AM2_SIS2B_MOM6i_1deg/MOM_input

@@ -76,8 +76,8 @@ NKML = 2                        !   [nondim] default = 2
 NKBL = 2                        !   [nondim] default = 2
                                 ! The number of layers that are used as variable density buffer layers if
                                 ! BULKMIXEDLAYER is true.
-DEFAULT_2018_ANSWERS = True     !   [Boolean] default = True
-                                ! This sets the default value for the various _2018_ANSWERS parameters.
+DEFAULT_ANSWER_DATE = 20181231  ! default = 99991231
+                                ! This sets the default value for the various _ANSWER_DATE parameters.
 SAVE_INITIAL_CONDS = True       !   [Boolean] default = False
                                 ! If true, write the initial conditions to a file given by IC_OUTPUT_FILE.
 IC_OUTPUT_FILE = "GOLD_IC"      ! default = "MOM_IC"
@@ -299,6 +299,12 @@ KHTH = 10.0                     !   [m2 s-1] default = 0.0
 KHTH_MAX = 900.0                !   [m2 s-1] default = 0.0
                                 ! The maximum horizontal thickness diffusivity.
 
+! === module MOM_porous_barriers ===
+PORBAR_ANSWER_DATE = 99991231   ! default = 20181231
+                                ! The vintage of the porous barrier weight function calculations.  Values below
+                                ! 20220806 recover the old answers in which the layer averaged weights are not
+                                ! strictly limited by an upper-bound of 1.0 .
+
 ! === module MOM_continuity ===
 
 ! === module MOM_continuity_PPM ===

coupled_AM2_LM3_SIS2/AM2_SIS2_MOM6i_1deg/MOM_input

@@ -76,8 +76,8 @@ NKML = 2                        !   [nondim] default = 2
 NKBL = 2                        !   [nondim] default = 2
                                 ! The number of layers that are used as variable density buffer layers if
                                 ! BULKMIXEDLAYER is true.
-DEFAULT_2018_ANSWERS = True     !   [Boolean] default = True
-                                ! This sets the default value for the various _2018_ANSWERS parameters.
+DEFAULT_ANSWER_DATE = 20181231  ! default = 99991231
+                                ! This sets the default value for the various _ANSWER_DATE parameters.
 SAVE_INITIAL_CONDS = True       !   [Boolean] default = False
                                 ! If true, write the initial conditions to a file given by IC_OUTPUT_FILE.
 IC_OUTPUT_FILE = "GOLD_IC"      ! default = "MOM_IC"
@@ -306,6 +306,12 @@ KHTH = 10.0                     !   [m2 s-1] default = 0.0
 KHTH_MAX = 900.0                !   [m2 s-1] default = 0.0
                                 ! The maximum horizontal thickness diffusivity.
 
+! === module MOM_porous_barriers ===
+PORBAR_ANSWER_DATE = 99991231   ! default = 20181231
+                                ! The vintage of the porous barrier weight function calculations.  Values below
+                                ! 20220806 recover the old answers in which the layer averaged weights are not
+                                ! strictly limited by an upper-bound of 1.0 .
+
 ! === module MOM_continuity ===
 
 ! === module MOM_continuity_PPM ===

coupled_AM2_LM3_SIS2/AM2_SIS2_MOM6i_1deg/MOM_parameter_doc.short

@@ -38,8 +38,8 @@ C_P = 3925.0                    !   [J kg-1 K-1] default = 3991.86795711963
 USE_PSURF_IN_EOS = False        !   [Boolean] default = True
                                 ! If true, always include the surface pressure contributions in equation of
                                 ! state calculations.
-DEFAULT_2018_ANSWERS = True     !   [Boolean] default = False
-                                ! This sets the default value for the various _2018_ANSWERS parameters.
+DEFAULT_ANSWER_DATE = 20181231  ! default = 99991231
+                                ! This sets the default value for the various _ANSWER_DATE parameters.
 SAVE_INITIAL_CONDS = True       !   [Boolean] default = False
                                 ! If true, write the initial conditions to a file given by IC_OUTPUT_FILE.
 IC_OUTPUT_FILE = "GOLD_IC"      ! default = "MOM_IC"
@@ -264,6 +264,10 @@ KHTH_MAX = 900.0                !   [m2 s-1] default = 0.0
                                 ! The maximum horizontal thickness diffusivity.
 
 ! === module MOM_porous_barriers ===
+PORBAR_ANSWER_DATE = 99991231   ! default = 20181231
+                                ! The vintage of the porous barrier weight function calculations.  Values below
+                                ! 20220806 recover the old answers in which the layer averaged weights are not
+                                ! strictly limited by an upper-bound of 1.0 .
 
 ! === module MOM_dynamics_split_RK2 ===
 

ice_ocean_SIS2/Baltic_OM4_025/MOM_input

@@ -87,8 +87,8 @@ BAD_VAL_SST_MAX = 55.0          !   [deg C] default = 45.0
 BAD_VAL_SST_MIN = -3.0          !   [deg C] default = -2.1
                                 ! The value of SST below which a bad value message is triggered, if
                                 ! CHECK_BAD_SURFACE_VALS is true.
-DEFAULT_2018_ANSWERS = True     !   [Boolean] default = True
-                                ! This sets the default value for the various _2018_ANSWERS parameters.
+DEFAULT_ANSWER_DATE = 20181231  ! default = 99991231
+                                ! This sets the default value for the various _ANSWER_DATE parameters.
 WRITE_GEOM = 0                  ! default = 1
                                 ! If =0, never write the geometry and vertical grid files. If =1, write the
                                 ! geometry and vertical grid files only for a new simulation. If =2, always
@@ -425,6 +425,12 @@ USE_GM_WORK_BUG = True          !   [Boolean] default = True
                                 ! If true, compute the top-layer work tendency on the u-grid with the incorrect
                                 ! sign, for legacy reproducibility.
 
+! === module MOM_porous_barriers ===
+PORBAR_ANSWER_DATE = 99991231   ! default = 20181231
+                                ! The vintage of the porous barrier weight function calculations.  Values below
+                                ! 20220806 recover the old answers in which the layer averaged weights are not
+                                ! strictly limited by an upper-bound of 1.0 .
+
 ! === module MOM_continuity ===
 
 ! === module MOM_continuity_PPM ===

ice_ocean_SIS2/Baltic_OM4_025/MOM_parameter_doc.short

@@ -55,8 +55,8 @@ BAD_VAL_SST_MAX = 55.0          !   [deg C] default = 45.0
 BAD_VAL_SST_MIN = -3.0          !   [deg C] default = -2.1
                                 ! The value of SST below which a bad value message is triggered, if
                                 ! CHECK_BAD_SURFACE_VALS is true.
-DEFAULT_2018_ANSWERS = True     !   [Boolean] default = False
-                                ! This sets the default value for the various _2018_ANSWERS parameters.
+DEFAULT_ANSWER_DATE = 20181231  ! default = 99991231
+                                ! This sets the default value for the various _ANSWER_DATE parameters.
 WRITE_GEOM = 0                  ! default = 1
                                 ! If =0, never write the geometry and vertical grid files. If =1, write the
                                 ! geometry and vertical grid files only for a new simulation. If =2, always
@@ -385,6 +385,10 @@ USE_GM_WORK_BUG = True          !   [Boolean] default = False
                                 ! sign, for legacy reproducibility.
 
 ! === module MOM_porous_barriers ===
+PORBAR_ANSWER_DATE = 99991231   ! default = 20181231
+                                ! The vintage of the porous barrier weight function calculations.  Values below
+                                ! 20220806 recover the old answers in which the layer averaged weights are not
+                                ! strictly limited by an upper-bound of 1.0 .
 
 ! === module MOM_dynamics_split_RK2 ===
 

ice_ocean_SIS2/Baltic_OM4_05/MOM_input

@@ -86,8 +86,8 @@ BAD_VAL_SST_MAX = 55.0          !   [deg C] default = 45.0
 BAD_VAL_SST_MIN = -3.0          !   [deg C] default = -2.1
                                 ! The value of SST below which a bad value message is triggered, if
                                 ! CHECK_BAD_SURFACE_VALS is true.
-DEFAULT_2018_ANSWERS = True     !   [Boolean] default = True
-                                ! This sets the default value for the various _2018_ANSWERS parameters.
+DEFAULT_ANSWER_DATE = 20181231  ! default = 99991231
+                                ! This sets the default value for the various _ANSWER_DATE parameters.
 
 ! === module MOM_hor_index ===
 ! Sets the horizontal array index types.
@@ -441,6 +441,12 @@ USE_GM_WORK_BUG = True          !   [Boolean] default = True
                                 ! If true, compute the top-layer work tendency on the u-grid with the incorrect
                                 ! sign, for legacy reproducibility.
 
+! === module MOM_porous_barriers ===
+PORBAR_ANSWER_DATE = 99991231   ! default = 20181231
+                                ! The vintage of the porous barrier weight function calculations.  Values below
+                                ! 20220806 recover the old answers in which the layer averaged weights are not
+                                ! strictly limited by an upper-bound of 1.0 .
+
 ! === module MOM_continuity ===
 
 ! === module MOM_continuity_PPM ===

ice_ocean_SIS2/Baltic_OM4_05/MOM_parameter_doc.short

@@ -55,8 +55,8 @@ BAD_VAL_SST_MAX = 55.0          !   [deg C] default = 45.0
 BAD_VAL_SST_MIN = -3.0          !   [deg C] default = -2.1
                                 ! The value of SST below which a bad value message is triggered, if
                                 ! CHECK_BAD_SURFACE_VALS is true.
-DEFAULT_2018_ANSWERS = True     !   [Boolean] default = False
-                                ! This sets the default value for the various _2018_ANSWERS parameters.
+DEFAULT_ANSWER_DATE = 20181231  ! default = 99991231
+                                ! This sets the default value for the various _ANSWER_DATE parameters.
 
 ! === module MOM_domains ===
 REENTRANT_X = False             !   [Boolean] default = True
@@ -402,6 +402,10 @@ USE_GM_WORK_BUG = True          !   [Boolean] default = False
                                 ! sign, for legacy reproducibility.
 
 ! === module MOM_porous_barriers ===
+PORBAR_ANSWER_DATE = 99991231   ! default = 20181231
+                                ! The vintage of the porous barrier weight function calculations.  Values below
+                                ! 20220806 recover the old answers in which the layer averaged weights are not
+                                ! strictly limited by an upper-bound of 1.0 .
 
 ! === module MOM_dynamics_split_RK2 ===
 

ice_ocean_SIS2/OM4_025.JRA/MOM_input

@@ -87,8 +87,8 @@ BAD_VAL_SST_MAX = 55.0          !   [deg C] default = 45.0
 BAD_VAL_SST_MIN = -3.0          !   [deg C] default = -2.1
                                 ! The value of SST below which a bad value message is triggered, if
                                 ! CHECK_BAD_SURFACE_VALS is true.
-DEFAULT_2018_ANSWERS = True     !   [Boolean] default = True
-                                ! This sets the default value for the various _2018_ANSWERS parameters.
+DEFAULT_ANSWER_DATE = 20181231  ! default = 99991231
+                                ! This sets the default value for the various _ANSWER_DATE parameters.
 WRITE_GEOM = 0                  ! default = 1
                                 ! If =0, never write the geometry and vertical grid files. If =1, write the
                                 ! geometry and vertical grid files only for a new simulation. If =2, always
@@ -423,6 +423,12 @@ KHTH_MAX_CFL = 0.1              !   [nondimensional] default = 0.8
                                 ! model, but much smaller numbers (e.g. 0.1) seem to work better for ALE-based
                                 ! models.
 
+! === module MOM_porous_barriers ===
+PORBAR_ANSWER_DATE = 99991231   ! default = 20181231
+                                ! The vintage of the porous barrier weight function calculations.  Values below
+                                ! 20220806 recover the old answers in which the layer averaged weights are not
+                                ! strictly limited by an upper-bound of 1.0 .
+
 ! === module MOM_continuity ===
 
 ! === module MOM_continuity_PPM ===

ice_ocean_SIS2/OM4_025/MOM_input

@@ -87,8 +87,8 @@ BAD_VAL_SST_MAX = 55.0          !   [deg C] default = 45.0
 BAD_VAL_SST_MIN = -3.0          !   [deg C] default = -2.1
                                 ! The value of SST below which a bad value message is triggered, if
                                 ! CHECK_BAD_SURFACE_VALS is true.
-DEFAULT_2018_ANSWERS = True     !   [Boolean] default = True
-                                ! This sets the default value for the various _2018_ANSWERS parameters.
+DEFAULT_ANSWER_DATE = 20181231  ! default = 99991231
+                                ! This sets the default value for the various _ANSWER_DATE parameters.
 WRITE_GEOM = 0                  ! default = 1
                                 ! If =0, never write the geometry and vertical grid files. If =1, write the
                                 ! geometry and vertical grid files only for a new simulation. If =2, always
@@ -431,6 +431,12 @@ USE_GM_WORK_BUG = True          !   [Boolean] default = True
                                 ! If true, compute the top-layer work tendency on the u-grid with the incorrect
                                 ! sign, for legacy reproducibility.
 
+! === module MOM_porous_barriers ===
+PORBAR_ANSWER_DATE = 99991231   ! default = 20181231
+                                ! The vintage of the porous barrier weight function calculations.  Values below
+                                ! 20220806 recover the old answers in which the layer averaged weights are not
+                                ! strictly limited by an upper-bound of 1.0 .
+
 ! === module MOM_continuity ===
 
 ! === module MOM_continuity_PPM ===

ice_ocean_SIS2/OM4_025/MOM_parameter_doc.short

@@ -55,8 +55,8 @@ BAD_VAL_SST_MAX = 55.0          !   [deg C] default = 45.0
 BAD_VAL_SST_MIN = -3.0          !   [deg C] default = -2.1
                                 ! The value of SST below which a bad value message is triggered, if
                                 ! CHECK_BAD_SURFACE_VALS is true.
-DEFAULT_2018_ANSWERS = True     !   [Boolean] default = False
-                                ! This sets the default value for the various _2018_ANSWERS parameters.
+DEFAULT_ANSWER_DATE = 20181231  ! default = 99991231
+                                ! This sets the default value for the various _ANSWER_DATE parameters.
 WRITE_GEOM = 0                  ! default = 1
                                 ! If =0, never write the geometry and vertical grid files. If =1, write the
                                 ! geometry and vertical grid files only for a new simulation. If =2, always
@@ -392,6 +392,10 @@ USE_GM_WORK_BUG = True          !   [Boolean] default = False
                                 ! sign, for legacy reproducibility.
 
 ! === module MOM_porous_barriers ===
+PORBAR_ANSWER_DATE = 99991231   ! default = 20181231
+                                ! The vintage of the porous barrier weight function calculations.  Values below
+                                ! 20220806 recover the old answers in which the layer averaged weights are not
+                                ! strictly limited by an upper-bound of 1.0 .
 
 ! === module MOM_dynamics_split_RK2 ===
 

ice_ocean_SIS2/OM4_05/MOM_input

@@ -87,8 +87,8 @@ BAD_VAL_SST_MAX = 55.0          !   [deg C] default = 45.0
 BAD_VAL_SST_MIN = -3.0          !   [deg C] default = -2.1
                                 ! The value of SST below which a bad value message is triggered, if
                                 ! CHECK_BAD_SURFACE_VALS is true.
-DEFAULT_2018_ANSWERS = True     !   [Boolean] default = True
-                                ! This sets the default value for the various _2018_ANSWERS parameters.
+DEFAULT_ANSWER_DATE = 20181231  ! default = 99991231
+                                ! This sets the default value for the various _ANSWER_DATE parameters.
 
 ! === module MOM_hor_index ===
 ! Sets the horizontal array index types.
@@ -446,6 +446,12 @@ USE_GM_WORK_BUG = True          !   [Boolean] default = True
                                 ! If true, compute the top-layer work tendency on the u-grid with the incorrect
                                 ! sign, for legacy reproducibility.
 
+! === module MOM_porous_barriers ===
+PORBAR_ANSWER_DATE = 99991231   ! default = 20181231
+                                ! The vintage of the porous barrier weight function calculations.  Values below
+                                ! 20220806 recover the old answers in which the layer averaged weights are not
+                                ! strictly limited by an upper-bound of 1.0 .
+
 ! === module MOM_continuity ===
 
 ! === module MOM_continuity_PPM ===