Update mom6 to its main repo. 20260828 commit - #183

Merged

sanAkel merged 200 commits into

NOAA-EMC:dev/emcfrom

jiandewang:feature/update-MOM6-20260828

Sep 8, 2026

Commits on Oct 1, 2025

+*Fix 3-equation ice-ocean flux iteration (#972)

Hallberg-NOAA
and
adcroft
authored
4622d6a

Commits on Nov 17, 2025

Fixes shelfwave failure in debug mode

kshedstrom
authored and
Hallberg-NOAA
committed
8d75416
Make sure reversed segments get rotated.

kshedstrom
authored and
Hallberg-NOAA
committed
f264134
Bugfix for default TIDES_ANSWER_DATE in SAL

herrwang0
authored and
Hallberg-NOAA
committed
75fa240

Commits on Nov 18, 2025

Fixes a typo in Recon1d PPM limiter

adcroft
authored and
Hallberg-NOAA
committed
257650d

Commits on Nov 24, 2025

Frequency-dependent drag in tensor form

c2xu
authored and
Hallberg-NOAA
committed
5994b9a

Commits on Nov 25, 2025

Adds a PLM reconstruction scheme using least squares for the slope

adcroft
authored and
Hallberg-NOAA
committed
8e73194

Commits on Dec 1, 2025

Corrected unit descriptions in 64 comments
Hallberg-NOAA
committed
e0f2469
*Update TC testing parameters for late 2025
Hallberg-NOAA
committed
970e5af

Commits on Dec 2, 2025

Added frazil to ice shelf (#985)
alex-huth
authored
96e186f

Commits on Dec 3, 2025

Extend the PGF reconstruction to allow PLM-WLS

adcroft
authored and
Hallberg-NOAA
committed
196e491
Spatially varying bottom drag coefficient (#983)
c2xu
authored
f2c8917
Correction on total column thickness for wetting

herrwang0
authored and
Hallberg-NOAA
committed
ba6032b

Commits on Dec 8, 2025

Allow overshoot for for grounding test

adcroft
authored and
Hallberg-NOAA
committed
7d90219
Initialize and integer only set on root_PE()

adcroft
authored and
Hallberg-NOAA
committed
ff7ec3e
Fix an uninitialized float in set_viscous_ML()

adcroft
authored and
Hallberg-NOAA
committed
367de74
Add floor to "h_marg" in continuity_PPM

adcroft
authored and
Hallberg-NOAA
committed
0f26d69

Commits on Dec 9, 2025

*+Fix CHANNEL_DRAG with bathymetry above sea level
Hallberg-NOAA
committed
67f7637
Corrected 66 unit descriptions in comments
Hallberg-NOAA
committed
50b2c3b
Fix for ice-shelf friction velocity bugs (#995)
alex-huth
authored
c008a01

Commits on Dec 10, 2025

(+) Decouple FMS infra from framework

marshallward
authored and
Hallberg-NOAA
committed
9e48380

Commits on Dec 26, 2025

Added latent heat flux from ice shelf to ocean fluxes

alex-huth
authored and
Hallberg-NOAA
committed
eac630c
Fixes wrong number of levels in z-coord diags

adcroft
authored and
Hallberg-NOAA
committed
760f765
Fix bug in registration of ALE sponge diagnostics for generic tracers (#1003)
andrew-c-ross
authored
d4a5fdd

Commits on Dec 27, 2025

Fix reference of (rarely) unassociated pointer

adcroft
authored and
Hallberg-NOAA
committed
bf1716f
Adds 5 CMIP7 diagnostics for vertically integrated heat/salt content

adcroft
authored and
Hallberg-NOAA
committed
7ee13cd

Commits on Jan 12, 2026

Optimized the ice-shelf CG scheme by reducing the number of times reproducing_sum (and therefore, mpp_sum) is called. Previously, several 2-D arrays were each being passed within their own reproduc…

alex-huth
authored and
Hallberg-NOAA
committed
3accd27
Check that frazil is allocated before adding it to ice-shelf water flux calculation. Needed for runs without frazil.

alex-huth
authored and
Hallberg-NOAA
committed
9030b2e
Added melt_mask for ice shelves

alex-huth
authored and
Hallberg-NOAA
committed
a742bc3
Added melt_mask to ice-shelf restart

alex-huth
authored and
Hallberg-NOAA
committed
cc3f1a6
comments and units

alex-huth
authored and
Hallberg-NOAA
committed
b99fbd5
subroutine ice_shelf_solve_inner: Completed variable descriptions and units; converted cg_halo and max_cg_halo from real to integer

alex-huth
authored and
Hallberg-NOAA
committed
d5ecb10
+Add trim_trailing_commas and ints_to_string
Hallberg-NOAA
committed
f761134
Call trim_trailing_commas from register_diag_field
Hallberg-NOAA
committed
9f7aeb9
Refactor nsten_halo in routine advect_tracer

herrwang0
authored and
Hallberg-NOAA
committed
d3de0cb
Fix OBC indexing bug in MOM_tracer_advect

herrwang0
authored and
Hallberg-NOAA
committed
a8f6945
MOM_interpolate: use get_axis_size()

marshallward
authored and
Hallberg-NOAA
committed
d19d917

Commits on Jan 13, 2026

ice-ocean-nolib: Fix SIS2 paths

marshallward
authored and
Hallberg-NOAA
committed
b03a7fb

Commits on Jan 14, 2026

Correct the path to the Icepack interfaces

Hallberg-NOAA
authored and
marshallward
committed
2076dc7
Delete unneeded masks args from 25 post_data calls
Hallberg-NOAA
committed
5875be7
Add 2D meanSL field

herrwang0
authored and
Hallberg-NOAA
committed
7343006
Use meanSL to calcualte mean column thickness

herrwang0
authored and
Hallberg-NOAA
committed
f1b9c45
Modify max_depth calculation using meanSL

herrwang0
authored and
Hallberg-NOAA
committed
cbcc012
+Fix how missing values are handled in post_data
Hallberg-NOAA
committed
c278715

Commits on Jan 16, 2026

Remove ice-sheet melting/freezing contribution to fluxes%latent because it is already accounted for in fluxes%sens

alex-huth
authored and
Hallberg-NOAA
committed
2e8793f

Commits on Feb 1, 2026

Merge branch 'main' into dev/gfdl
marshallward
committed
7d00286
+Add G%IdxCu_OBCmask and G%IdyCv_OBCmask
Hallberg-NOAA
committed
8f92390
Use G%IdxCu_OBCmask in 7 places
Hallberg-NOAA
committed
99c32b7
Add option to scale tidal amplitude for bottom ustar. (#1016)

breichl
and
brandon.reichl
authored
5801592

Commits on Feb 2, 2026

Add vertical tracer flux diagnostic for dye tracers (#1022)
aakashsane
authored
ac64aaa

Commits on Feb 6, 2026

Regroup MOM_initialize_fixed params in param_doc

herrwang0
authored and
Hallberg-NOAA
committed
ff6b3b0
Minor open_boundary_config refactor

herrwang0
authored and
Hallberg-NOAA
committed
27f4243

Commits on Feb 9, 2026

Refactor gradKE with simpler treatment of OBCs

Hallberg-NOAA
authored and
adcroft
committed
a5da88f

Commits on Feb 13, 2026

Autoconf: Build dependencies as libraries

marshallward
authored and
Hallberg-NOAA
committed
85aacaa
ac: Configure use of pkg/ source

marshallward
authored and
Hallberg-NOAA
committed
0e9061e
Deleted about 170 unused internal variables
Hallberg-NOAA
committed
ae752b6

Commits on Feb 18, 2026

Decrease open_boundary_config indentation

herrwang0
authored and
Hallberg-NOAA
committed
0f977a4

Commits on Feb 20, 2026

Correct the unit of diagnostic "eta_cor"

herrwang0
authored and
Hallberg-NOAA
committed
412c177
Merge [uv]bt_st and [uv]bt_first in btstep

herrwang0
authored and
Hallberg-NOAA
committed
aefec49

Commits on Mar 6, 2026

Bugfix for OBC_SPECIFIED_STRAIN option

herrwang0
authored and
Hallberg-NOAA
committed
c402cfc
Add OBC_VORTICITY_CONFIG and OBC_STRAIN_CONFIG

herrwang0
authored and
Hallberg-NOAA
committed
f5d9dae

Commits on Mar 9, 2026

Add clocks timing MOM_end and MOM_save_restart
Hallberg-NOAA
committed
d4bf825
Add missing spaces in 53 strings
Hallberg-NOAA
committed
7990526
Fix 9 misspellings in MOM_parameter_doc files
Hallberg-NOAA
committed
373662e

Commits on Mar 10, 2026

ac: Conditional testing of GSW and CVMix libs

marshallward
authored and
adcroft
committed
240775c

Commits on Mar 12, 2026

Add runtime OBC_TEMP_SALT_NEEDED_BUG flag

herrwang0
authored and
Hallberg-NOAA
committed
8bb2816
Add FATALs in OBC parse_segment_manifest_str

herrwang0
authored and
Hallberg-NOAA
committed
be9c4d6
Surface state diagnostic index bugfix

marshallward
authored and
Hallberg-NOAA
committed
6b4a6c3
Update MOM_wave_interface.F90

Zeracesharon
authored and
Hallberg-NOAA
committed
a70d96a
Merge branch 'main' into main-to-dev
marshallward
committed
ac058ee

Commits on Mar 15, 2026

Add function time_minus_signed for time differences

andrew-c-ross
authored and
Hallberg-NOAA
committed
954dc75
Use time_minus_signed for time relative to a reference (is < 0 when time < reference)

andrew-c-ross
authored and
Hallberg-NOAA
committed
2289062

Commits on Mar 17, 2026

Add run-time flag USE_ADJUST_INTERFACE_MOTION

adcroft
authored and
Hallberg-NOAA
committed
f354266
ALE: Add REGRID_USE_DEPTH_BASED_TIME_FILTER parameter

adcroft
authored and
Hallberg-NOAA
committed
a9a2cd8
ALE: Fix copy-paste error in REGRID_FILTER_DEEP_DEPTH description

adcroft
authored and
Hallberg-NOAA
committed
5a1e069
Separate frazil for ice sheets and sea ice (#1027)
alex-huth
authored
45b6d22
Enable exchange of runoff DOC from Land to Ice used in CMIP7 ESM4.5 (#1034)
nikizadehgfdl
authored
d2f562a

Commits on Mar 18, 2026

+Extend diag_mediator to allow the piecemeal posting of diagnostics (#809)
ashao
authored
6f6975a
Refactor update_OBC_segment_data loop indices

herrwang0
authored and
Hallberg-NOAA
committed
5fab3c0
Move alloc buffer_dst to initialize_segment_data

herrwang0
authored and
Hallberg-NOAA
committed
7df3b18
Add subroutine allocate_segment_field_data

herrwang0
authored and
Hallberg-NOAA
committed
666ff94
+Add & use optional maskT arg to initialize_masks
Hallberg-NOAA
committed
054621c

Commits on Mar 20, 2026

+Fix bugs in ice shelf top slope calculation
Hallberg-NOAA
committed
6fb5dc7
+Enhance ice_shelf_diag_mediator like framework
Hallberg-NOAA
committed
5d2eba7
+Extract find_dz_for_eta from find_eta
Hallberg-NOAA
committed
4706b3e
+Add ACCURATE_NONBOUS_THICK_CELLO
Hallberg-NOAA
committed
e1932f6
Bugfix for reintegrating diagnostics in non-boussinesq (#1060)

breichl
and
brandon.reichl
authored
ed2055c
Remove stray leading $

andrew-c-ross
authored and
adcroft
committed
575d4c7
Add setuptools<82 to keep pkg_resources available

andrew-c-ross
authored and
adcroft
committed
6aa65c6
Refactor of limit vel function for nicer layout for GPU compute (#1023)

JorgeG94
and
marshallward
authored
486b4f4
+Add time_to_real and scaling in real_to_time
Hallberg-NOAA
committed
6018cb3
Remove 5 unused module uses for time_type_to_real
Hallberg-NOAA
committed
764e5bb
Rescale via time_to_real or real_to_time calls
Hallberg-NOAA
committed
85a4cd7

Commits on Mar 23, 2026

Restructure segment%field of OBC

herrwang0
authored and
Hallberg-NOAA
committed
6d2837d
Remove 19 flags and 6 indices in segment type

herrwang0
authored and
Hallberg-NOAA
committed
7298e58

Commits on Mar 24, 2026

Add missing doc comments to undocumented variables in ice_shelf

OlgaSergienko
authored and
Hallberg-NOAA
committed
f52a2b3

Commits on Mar 25, 2026

Adds t17d and t20d diagnostics

adcroft
authored and
Hallberg-NOAA
committed
55d064c

Commits on Mar 27, 2026

Commits on Mar 28, 2026

Diag_mediator cleanup
Hallberg-NOAA
committed
1cd9cae

Commits on Mar 30, 2026

Zero out allocated array in MOM_temp_salt_initialize_from_Z

adcroft
authored and
Hallberg-NOAA
committed
5f60bff

Commits on Mar 31, 2026

Refactor update_OBC_segment_data

herrwang0
authored and
Hallberg-NOAA
committed
b065a4e
Add Newton iterations for the ice-shelf velocity solution (#1072)
alex-huth
authored
8a009b1

Commits on Apr 1, 2026

Change "end if" to endif and "end do" to enddo
Hallberg-NOAA
committed
8a51d58
Trailing semicolons and semicolon white space
Hallberg-NOAA
committed
116972b

Commits on Apr 3, 2026

Split reading files from update_OBC_segment_data

herrwang0
authored and
Hallberg-NOAA
committed
71dd080
Split reservoir init from update_OBC_segment_data

herrwang0
authored and
Hallberg-NOAA
committed
1e9ac39

Commits on Apr 4, 2026

Move particles_run call into step_MOM_tracer_dyn

cspencerjones
authored and
Hallberg-NOAA
committed
2601816

Commits on Apr 6, 2026

+Add symmetric_sum functions
Hallberg-NOAA
committed
6074eb3

Commits on Apr 8, 2026

Merge branch 'main' into main-to-dev-20260508
marshallward
committed
2dec87d
Refactor update_OBC_segment_data

herrwang0
authored and
Hallberg-NOAA
committed
878d672
Suppress OBC unnecessary field warning with T/S

herrwang0
authored and
Hallberg-NOAA
committed
cf55bcd
Bugfix for OBC using VALUE mode

herrwang0
authored and
Hallberg-NOAA
committed
ec0728d

Commits on Apr 9, 2026

+Diag_mediator enhancements from ice shelf version
Hallberg-NOAA
committed
ea47b20

Commits on Apr 16, 2026

+Standardize q-point index space axis names

Hallberg-NOAA
authored and
adcroft
committed
56a8770
*Fix tracer content tendency cell_methods

Hallberg-NOAA
authored and
adcroft
committed
d3073f1

Commits on Apr 17, 2026

makedep: support empty macros and defines

marshallward
authored and
adcroft
committed
24028c3
Updates for layout reproducing and restart reproducing with remap_aux_vars

brandon.reichl
authored and
adcroft
committed
12d7514
Scale tideamp to L/T instead of Z/T

brandon.reichl
authored and
adcroft
committed
c925265

Commits on Apr 20, 2026

Adding metric terms to account for non-rectangular shape of grid cells (#1079)
OlgaSergienko
authored
57feb58

Commits on Apr 22, 2026

Commits on Apr 29, 2026

New methods for ice-shelf velocity inner solve. More FMA edits. (#1082)
alex-huth
authored
416ffd3

Commits on Apr 30, 2026

Add restart fields for SPLIT_BOTTOM_STRESS (#1098)

authored
68e20c5

Commits on May 4, 2026

+Add option for rotationally symmetric downsampling

Hallberg-NOAA
authored and
adcroft
committed
d0bcac0
Fixing missing initialization of `flux_tmp`

OlgaSergienko
authored and
adcroft
committed
0b2d5ed
Merge branch 'main' into dev/gfdl
adcroft
committed
3d479de

Commits on May 5, 2026

Restore answer for OBC BGC tracer reservoir init

herrwang0
authored and
Hallberg-NOAA
committed
59ea0ff
Fix DT_OBC_SEG_UPDATE_OBGC never being logged

herrwang0
authored and
Hallberg-NOAA
committed
8b0f91b
New rotationally-consistent ice-shelf shape functions

alex-huth
authored and
Hallberg-NOAA
committed
bad0602

Commits on May 8, 2026

Set tracer advection diagnostics without masks

Hallberg-NOAA
authored and
adcroft
committed
49cf384
+Add ability to control when verbosity is reset

Hallberg-NOAA
authored and
adcroft
committed
c814bb9

Commits on May 11, 2026

Diag buffer: Set fill_value_3d ks/ke size (#1111)
marshallward
authored
7ca304e
cuberoot: Replace modulo() with arithmetic ops

marshallward
authored and
Hallberg-NOAA
committed
850504a

Commits on May 12, 2026

Commits on May 13, 2026

(*)Avoid uninitialized use of USE_KH_IN_MEKE
Hallberg-NOAA
committed
9ce1cb1
Refactor update_segment_tracer_reservoirs

herrwang0
authored and
Hallberg-NOAA
committed
5a706f6
Store resrv_lfac_in/out in segment tracer registry

herrwang0
authored and
Hallberg-NOAA
committed
b0335b0

Commits on May 14, 2026

Commits on May 18, 2026

+(*)Use OBC info to remap velocity diagnostics
Hallberg-NOAA
committed
ac31b32

Commits on May 19, 2026

Add ANN-based mesoscale streamfunction parameterization (#1109)

authored
bec6193

Commits on May 21, 2026

Diag buffers: Use `final` to avoid slow GCC builds

marshallward
authored and
Hallberg-NOAA
committed
56001bc

Commits on May 29, 2026

Move ice-shelf basal friction to quadrature points

alex-huth
authored and
Hallberg-NOAA
committed
2c0f2c9
Fix up ice-shelf velocity inexact Newton scheme and convergence.

alex-huth
authored and
Hallberg-NOAA
committed
a0a7eea
(*)Set a pointer to df_2d_y in register_tracer()
Hallberg-NOAA
committed
4c0d2ad
Delete NOTE on ending ODA increments

awallcraft
authored and
Hallberg-NOAA
committed
865753a

Commits on Jun 4, 2026

Add capability to use multiple diagnostics downsampling levels in MOM6 (#1115)
nikizadehgfdl
authored
44da3eb

Commits on Jun 10, 2026

Partially fix restart reproducibility of OBC BGC

herrwang0
authored and
Hallberg-NOAA
committed
79db8ba
Guard DT_OBC_SEG_UPDATE_OBGC for restart misuse

herrwang0
authored and
Hallberg-NOAA
committed
f13c352
Add OBC segment per-tracer I_Lscale

herrwang0
authored and
Hallberg-NOAA
committed
a8b5bea
Eliminate OBC_inflow_conc

herrwang0
authored and
Hallberg-NOAA
committed
a0fd36c
Improve Doxygen for two OBC subroutines

herrwang0
authored and
Hallberg-NOAA
committed
759c03a

Commits on Jun 15, 2026

Revert "Diag buffers: Use `final` to avoid slow GCC builds"

marshallward
authored and
Hallberg-NOAA
committed
32e275a

Commits on Jun 16, 2026

Log DTBT resets in set_dtbt with model time

herrwang0
authored and
Hallberg-NOAA
committed
13cf21f
Add DTBT_RESTART_BUG runtime parameter

herrwang0
authored and
Hallberg-NOAA
committed
59d213d
Fixes for ice-shelf driving stress

alex-huth
authored and
Hallberg-NOAA
committed
c3237e2

Commits on Jun 24, 2026

Move copy_OBC_tracer_reservoirs to init

herrwang0
authored and
Hallberg-NOAA
committed
eb35707
Move copy_OBC_thickness_reservoirs to init

herrwang0
authored and
Hallberg-NOAA
committed
5d7c8d1
Move copy_OBC_radiation_coefs to init

herrwang0
authored and
Hallberg-NOAA
committed
1ac500b

Commits on Jun 27, 2026

Simpler logic in reset_face_lengths_list
Hallberg-NOAA
committed
47d055e
(*)Fix handling of MOM_forcing_type optional args
Hallberg-NOAA
committed
e1422a8

Commits on Jun 30, 2026

Commits on Jul 1, 2026

(*)Set 5 BUG param defaults via ENABLE_BUGS_BY_DEFAULT
Hallberg-NOAA
committed
9423bdb
visc: enable cuberoot in find_L_open_convex

marshallward
authored and
Hallberg-NOAA
committed
7e3dfc5
Is solo adot (#1138)
MJHarrison-GFDL
authored
cc00327

Commits on Jul 7, 2026

Add OBC layer thicknesses segment%dz

herrwang0
authored and
Hallberg-NOAA
committed
dd832b5
Split update_OBC_segment_data

herrwang0
authored and
Hallberg-NOAA
committed
80f217a
Apply split update for OBC dynamics and tracers

herrwang0
authored and
Hallberg-NOAA
committed
b3b27cb
Split read_OBC_tracer_data

herrwang0
authored and
Hallberg-NOAA
committed
34b0092
Apply split read for OBC dynamics and tracers

herrwang0
authored and
Hallberg-NOAA
committed
6f6faf0
Add IGNORE_DT_OBC_SEG_UPDATE_OBGC

herrwang0
authored and
Hallberg-NOAA
committed
ab17889
MOM_coms: Thread-safe reproducing_sum

authored and
Hallberg-NOAA
committed
805fb9a
MOM_coms: Rename EFP length ni to efp_digits

marshallward
authored and
Hallberg-NOAA
committed
9be2c0c
MOM_coms: phase out max_count_prec

marshallward
authored and
Hallberg-NOAA
committed
fa45766

Commits on Jul 16, 2026

Merge branch 'main' into main-to-gfdl-v2
marshallward
committed
8f8e5fa

Commits on Jul 18, 2026

Add submodule support to makedep

edoyango
authored and
marshallward
committed
91db397
write_energy: Conditional file opening

marshallward
authored and
Hallberg-NOAA
committed
433b2e4
MOM_harmonic_analysis: open_ASCII_file is not used

marshallward
authored and
Hallberg-NOAA
committed
f76bf68
Change dl to dlfac

Theresa Cordero
authored and
Hallberg-NOAA
committed
8021825

Commits on Jul 19, 2026

Hor_visc: FrictWork_bh compute condition.

marshallward
authored and
Hallberg-NOAA
committed
9abc79f
Correct MOM_tracer_advect merge conflicts
Hallberg-NOAA
committed
0b53ca8
Fix description of USE_CR_GRID
Hallberg-NOAA
committed
78d12c3
Fix a neutral_diffusion_calc_coeffs error message
Hallberg-NOAA
committed
5205a84
Follow standard MOM6 syntax in merged code
Hallberg-NOAA
committed
7b3020b
Add subroutine update_OBC_segment_dz

herrwang0
authored and
Hallberg-NOAA
committed
aa2a7e0
Add OBC_TRACER_DZ_BUG

herrwang0
authored and
Hallberg-NOAA
committed
d89c19d

Commits on Jul 21, 2026

Autoconf: top-level configure + support
marshallward
committed
5d0edd1
Testing: Use the top-level configure
marshallward
committed
aaa12fc
Autoconf: Minor fixes
marshallward
committed
ba3da16

Commits on Aug 23, 2026

*Negative h_marg_min without CONT_USE_H_MARG_MIN
Hallberg-NOAA
committed
f373bf8

Commits on Aug 24, 2026

GitHub Actions: Update action versions
marshallward
committed
fc6b74e

Commits on Aug 28, 2026