Update 2 Adds new ocean to ice coupling fields for frazil ice formation - #559

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njeffery wants to merge 230 commits into

E3SM-Project:seaice-couplingfrom

njeffery:njeffery/frazil-coupling

Commits on Aug 17, 2026

Add a design document for the split time stepping
hyungyukang
committed
9822537
Update split time step design doc
hyungyukang
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d650960
Update SE TimeStepper documents
hyungyukang
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10671d9
Update the design document.
hyungyukang
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cd7e4ca
Update the design document
hyungyukang
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e38a78b
Update the design document
hyungyukang
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83e66cc
Fix linting
hyungyukang
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550884d

Commits on Aug 20, 2026

Update documents to address reviewer's comment
hyungyukang
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72aac0d
Fix linting
hyungyukang
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b410541

Commits on Aug 31, 2026

Add missing assignment in coupled finalize
andrewdnolan
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f3e17ab
Make C++ declerations consistent with fortran
andrewdnolan
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9071bfc
Update components/omega/doc/design/SplitTimeStepping.md

hyungyukang
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vanroekel
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fda1dc1
Addressing comments from PR reviewers
hyungyukang
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3710c4d
Add document links for equations
hyungyukang
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13d054c
Addressing comments from PR reviewers
hyungyukang
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fda6868

Commits on Sep 1, 2026

Addressing comments from PR reviewers
hyungyukang
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c991f9c

Commits on Sep 2, 2026

Addressing comments from PR reviewers
hyungyukang
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feade81
Addressing comments from PR reviewers
hyungyukang
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73cf7ac

Commits on Sep 3, 2026

Addressing comments from PR reviewers
hyungyukang
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7e46dd0
Additional revise section 3.2.3
hyungyukang
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69582aa

Commits on Sep 4, 2026

Remove unused intersphinx inventories

xylar
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claude
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be03e0f
Merge pull request #537 from E3SM-Project/omega/docs/remove-unneeded-intersphinx
xylar
authored
283dc7e
Merge pull request #533 from andrewdnolan/omega/fix-finalize
sbrus89
authored
d189cc2
Use driver-owned PIO settings for coupled Omega initialization
grnydawn
committed
0e62540
fix lint issues
grnydawn
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1d18ba0
removes MPI_Comm and optional IOInitParams arguments from initOmegaModulesImpl function
grnydawn
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5933c60
Add a helper for computing pseudo-thickness equation aux

mwarusz
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hyungyukang
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e9b67b1
Add a helper for computing tracer aux

mwarusz
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hyungyukang
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f62f84e
Add TransportAuxVars

mwarusz
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hyungyukang
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5d2a476
Add a function to compute transport velocity

mwarusz
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hyungyukang
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b4dc882
Compute and use NormalTransportVelocity where needed

mwarusz
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hyungyukang
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2550c6b
Add fields for transport vertical velocities

mwarusz
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hyungyukang
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1a1bcbb
Add computeVerticalTransportPseudoVelocity

mwarusz
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hyungyukang
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60b0384
Compute and use VerticalTransportPseudoVelocity where needed

mwarusz
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hyungyukang
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6bff540
Allow passing in a correction to transport velocity

mwarusz
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hyungyukang
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5fecd13
Add split-explicit RK2 time stepper
hyungyukang
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51ae8ab
Reorganzing and optimizing SE stepper
hyungyukang
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27c0f6b
Further optimizations
hyungyukang
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4e9ab14
Fix linting
hyungyukang
committed
12f70d9
Fix compiling error for pm-gpu
hyungyukang
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dcd9a00
Fix linting
hyungyukang
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b57c57f
Remove unused field TotalGeometricThickness

mwarusz
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hyungyukang
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341f293
Remove unused field DepthIntegSpecificVolume

mwarusz
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hyungyukang
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e5d6d12
Simplify computation of DepthMeanSpecificVolume

mwarusz
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hyungyukang
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00955a2
Fix testDepthMeanSpecificVolume

mwarusz
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hyungyukang
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34119be
Fix VertCoord test

mwarusz
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hyungyukang
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b9d4dfd
Fix time stepper test

mwarusz
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hyungyukang
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1ccf4bb
Add isSplit

mwarusz
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hyungyukang
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458de10
Move halo exchanges and copies inside initializeStateFromInput

mwarusz
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hyungyukang
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391b096
Remove unused overload of computeMomAux

mwarusz
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hyungyukang
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db0b803
Remove auxstate and tenency calls that take additional velocity array

mwarusz
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hyungyukang
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610e9f7
Allow transport velocity correction in computePseudoThicknessTracerAux

mwarusz
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hyungyukang
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f79af2e
Refactor transport velocity in split-explicit time stepper

mwarusz
authored and
hyungyukang
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c07d576
Fixes after vertical chunking removal

mwarusz
authored and
hyungyukang
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3289b47
Fix linting issues
hyungyukang
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aa5a3bc
Fix scratch allocation in computePseudoThicknessTracerAux

mwarusz
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hyungyukang
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c60219d
Use LocTracerAux in computeTracerAux

mwarusz
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hyungyukang
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fdb9e70
Consistently use full time step to compute ProvPseudoThickness

mwarusz
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hyungyukang
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73982f8
Use transport velocity to compute ProvPseudoThickness

mwarusz
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hyungyukang
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fde8a35
Remove SplitExplicitRK2Stepper::computeVerticalPseudoVelocity

mwarusz
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hyungyukang
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af74e4b
Simplify and remove chunking from Coriolis acceleration term

mwarusz
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hyungyukang
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2d0c4cf
Disable timing for first call to computeMomVertAux

mwarusz
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hyungyukang
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0f1efd9
Make computeVerticalPseudoVelocityImpl public to satisfy CUDA

mwarusz
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hyungyukang
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1fa6211
Use analytical solution in Coriolis tendency tests

mwarusz
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hyungyukang
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c9a3697
Resolve the build and linting issue after rebasing
hyungyukang
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8d6254a

Commits on Sep 8, 2026

Merge pull request #527 from grnydawn/ykim/omega/pio-init
sbrus89
authored
e11b0b1
Add regional mask support to Field
brian-oneill
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5b1c4ee
Add CoordinateBinningOp
brian-oneill
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24d0b2e
Add PseudoToGeometricOp
brian-oneill
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2c02dae
Add BinaryMultiplyOp
brian-oneill
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dfbfd6c
Add BinnedAccumulatorOp
brian-oneill
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6fa81bd
Add PrefixSumOp
brian-oneill
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dd068ae
Add ScalarMultiplyOp
brian-oneill
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820d424
Add ExtractRegionOp.h
brian-oneill
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7ab152f
Add register1D/2D/2DReal variant methods to AnalysisOpFactory
brian-oneill
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02d9d46
Register new ops
brian-oneill
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cee2c15
Add TransectAccumulatorOp
brian-oneill
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fb8bfeb
Parsing fixes mostly
brian-oneill
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3ec6e81
Create MOC AnalysisGroup
brian-oneill
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04e8120
Edits to AnalysisGroup methods to pass configs for Op chains
brian-oneill
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8f2fd6f
Update parser to handle new Ops
brian-oneill
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023ec79
AnalysisOperatorTest helper updates
brian-oneill
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9f97bc8
Unit tests for new Ops
brian-oneill
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1f274fc
Add MOC node to Default.yml config file
brian-oneill
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c79dfce
IOName capability to provide legible Analysis Field names in IOStreams
brian-oneill
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8d5eee4
Documentation updates
brian-oneill
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d001e00
BinnedAccumulatorOp linting
brian-oneill
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51a5cec
Edit parser to handle optional BC in PrefixSumOp
brian-oneill
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d92edf5
Add defaults for FileFreq and FileFreqUnits to StreamParams
brian-oneill
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eae5745
Update MOC AnalysisGroup
brian-oneill
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bda270c
Add OutputName optional override method for AnalysisOperator
brian-oneill
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127ac58
Fix ExtractRegionOp OutputName
brian-oneill
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4537a6a
PrefixSumOp updates
brian-oneill
committed
eadde53
PseudoToGeometricOp Updates
brian-oneill
committed
9df7803
Fix TransectAccumulatorOp OutputName
brian-oneill
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4c8bb45
Updates to AnalysisOperatorTest
brian-oneill
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23dbefd
Add MOC chain test to AnalysisSystemTest
brian-oneill
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9a3db42
Make some Analysis class methods public
brian-oneill
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189037c
Update default Config
brian-oneill
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7dac2dd
Functions with parallel dispatch cannot be private
brian-oneill
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41257a1
Add bin boundaries to MOC output
brian-oneill
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71c10d6
Add HorzMeanOp
brian-oneill
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3f6da3f
Update Ops registry
brian-oneill
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d0f8e0d
Update parser
brian-oneill
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88e317d
Compute depths and add to MOC output stream
brian-oneill
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7c34c1a
PrefixSumOp bug fix
brian-oneill
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45c8f65
Update Analysis devGuide
brian-oneill
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7264a5b
Add HorzMeanOp unit test
brian-oneill
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8a598f5
Add .nc suffix to analysis output
brian-oneill
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fc43f35
TimeDependent=false for bin boundary field
brian-oneill
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ccbca65
Update unit and long_name metadata for MOC field
brian-oneill
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3833319
Update Units metadata for depth field
brian-oneill
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4eee54a

Commits on Sep 9, 2026

Commits on Sep 10, 2026

Fix memory growth during configuration retrieval
hyungyukang
committed
cfa8c36
Address PR reviewer's suggestion
hyungyukang
committed
4510444
Merge pull request #541 from hyungyukang/omega/fix-step-runtime-slowdown
sbrus89
authored
d086d49

Commits on Sep 11, 2026

Accumulate NormalVelocity on edges
andrewdnolan
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ed618f0
Export So_dhdx and So_dhdy to the coupler
andrewdnolan
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a801d04
Add support for G-case compsets
andrewdnolan
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05cd0dc
Import/Apply thermodynamic flux fields from cpl
andrewdnolan
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ad83a53
Turn on thickness and tracer forcing tendencies
andrewdnolan
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356e1c3
Fix OMEGA component name in G-Case compset defs
andrewdnolan
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994c41c
change accumulation test to avoid dangling pointer
andrewdnolan
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c87c586
Export practical salinity [psu]
andrewdnolan
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121ce08
Set ROF_NCPL equal to ATM_NCPL for OMEGA
andrewdnolan
committed
8e763e7
Addition to allow E3SM configuations to build without OMEGA

jonbob
authored and
andrewdnolan
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0897850
Updates to allow B-cases with OMEGA

jonbob
authored and
andrewdnolan
committed
bc9ef59
Fixes the build failure of the coupled B-case, while the coupled G-cases already passed.

grnydawn
authored and
andrewdnolan
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f12b52c
Make sure kokkos is not already initalized before initializing

jonbob
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andrewdnolan
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271f5dd
Add export fields needed for fully-coupled configurations

jonbob
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andrewdnolan
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1147a37
More control around kokkos initialize and finalize

jonbob
authored and
andrewdnolan
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f103567
Refactor Kokkos::is_finalized logic
andrewdnolan
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213bda2
Add "H" suffix to host array in CplToOcn
andrewdnolan
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a8d0895
Use LatentHeatFluxEvap var name following Forcing
andrewdnolan
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ddc9ba5
Import Si_bpress and Sa_pslv for ssh adjustment
andrewdnolan
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ff75ec7
Add pressure adjustment to SSH gradident calc
andrewdnolan
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5aa739e
Make SplitExplicitRK2 default timestepper
andrewdnolan
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bd63e0f
Set OMEGA_ARCH from the E3SM machine configuration
grnydawn
committed
ab4f6e0
fix a bug not promoting SYCL macros
grnydawn
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192511f
Copy summed coupler data into SurfacePressure
andrewdnolan
committed
a7bc8e2

Commits on Sep 12, 2026

Commits on Sep 13, 2026

Weight the global mean and standard deviation by area and mass

xylar
and
claude
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009ba65
Bug fix for restarts with time avgs
brian-oneill
committed
46f6fb5
Adds FCT option to horizontal tracer transport.
overfelt
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48cd48d
Update components/omega/src/ocn/TendencyTerms.h

overfelt
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mwarusz
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94634df
Update components/omega/src/ocn/TendencyTerms.cpp

overfelt
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mwarusz
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1ec9011
Rebase on develop
overfelt
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a555abb
Use previous ring time to set time_bnds
brian-oneill
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90b7904
Lint fix
brian-oneill
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d31f221

Commits on Sep 14, 2026

Add user and developer guide for the SE time stepper
hyungyukang
committed
f7d0d42
Update user and dev guide docs
hyungyukang
committed
8950ef2
Update TimeStepping.md to address PR comments
hyungyukang
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5f5c869
Update documents
hyungyukang
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4ed2cde
fix race condition on using gptl due to multi-threading
grnydawn
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18bffd3
Update components/omega/src/ocn/TendencyTerms.cpp

overfelt
and
mwarusz
authored
9374339
Update components/omega/src/ocn/TendencyTerms.h

overfelt
and
mwarusz
authored
9622090
Update components/omega/src/ocn/TendencyTerms.h

overfelt
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mwarusz
authored
d46b6e8
Update components/omega/src/ocn/Tendencies.cpp

overfelt
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mwarusz
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56496ee
Update components/omega/src/ocn/Tendencies.cpp

overfelt
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mwarusz
authored
bf39a36
Update components/omega/src/ocn/Tendencies.cpp

overfelt
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mwarusz
authored
801bc4e
Update components/omega/src/ocn/Tendencies.cpp

overfelt
and
mwarusz
authored
55a8359
Update components/omega/src/ocn/Tendencies.cpp

overfelt
and
mwarusz
authored
0f8f700
Update components/omega/src/ocn/Tendencies.cpp

overfelt
and
mwarusz
authored
ac5a9b9
Clang format
overfelt
committed
e6cede4

Commits on Sep 15, 2026

Fix and improve `updateSurfacePressure` CTest
andrewdnolan
committed
1fd36c2
Add G and B cases to `e3sm_omega_developer` suite
andrewdnolan
committed
429e2d2

Commits on Sep 16, 2026

Commits on Sep 17, 2026

Commits on Sep 21, 2026

Merge pull request #526 from grnydawn/ykim/omega/arch-e3sm
sbrus89
authored
0c3353c

Commits on Sep 22, 2026

Correct spelling mistake TridDiagSolver
julianlitz
authored
d000450

Commits on Sep 23, 2026

Merge pull request #571 from julianlitz/spelling-mistake-tridiagsolver
xylar
authored
480467b
Refactor needed for cuda backend
brian-oneill
committed
5a35f25
Use the mesh sphere radius in operators and prescribed velocities

xylar
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claude
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00e5176
Take the test sphere radius from the mesh

xylar
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claude
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aa5cbe4
Check the mesh sphere radius against coordinates and REarth

xylar
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claude
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4c3084c
Tighten the mesh sphere radius check to 1e-8

xylar
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claude
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97d8e47
Make the spherical tracer diffusion test field smooth at the poles

xylar
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claude
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150e5fa
Update expected errors for the regenerated spherical CTest mesh

xylar
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claude
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d09c546
Document the sphere radius requirement and update CTest mesh links

xylar
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claude
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24c0349
Use REarth rather than the mesh radius in operators and tests

xylar
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claude
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8e031f0
State the smoothness requirement on scalarB without history

xylar
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claude
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d8fecb8
Express the sphere radius check with OMEGA_REQUIRE

xylar
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claude
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630d17f
Use the mesh edge lengths in the FCT low-order flux test

xylar
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claude
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676292f
Update the spherical FCT provisional thickness expected errors

xylar
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claude
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1a564eb
Link the case's shared Scorpio and GPTL in coupled Omega builds
grnydawn
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f40bb06

Commits on Sep 24, 2026

Commits on Sep 25, 2026

Commits on Sep 28, 2026

Commits on Sep 29, 2026

add index_x2i_Fioo_frazils (frazil salt flux) to ice_comp_mct.F,mpassi_cpl_indices.F,seq_flds_mod.F90

erinethomas
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njeffery
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6fbd75f
Add additional frazil coupler fields.

karapeterson
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njeffery
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1fa040f
adding o2x_Fioo_frazilh/o2x_Fioo_frazils to mpaso

erinethomas
authored and
njeffery
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4b63826
Enable variable salinity coupling inputs for sea ice

proteanplanet
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njeffery
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543f448
Updating icepack submodule 9.2.26

darincomeau
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njeffery
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97550f5
Add budgeting in mct coupler for new coupling fields.

karapeterson
authored and
njeffery
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9a4de09
Fix bugs leading to build errors.

karapeterson
authored and
njeffery
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833ae50
Adds omega-fluxes option for frazil coupling in sea ice
njeffery
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810fe58
Update sea ice config checks
njeffery
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13db738
Corrects update sea ice config options
njeffery
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961366e
Fixes salt flux units error
njeffery
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a142bc4
Make frazil energy consistent with the ocean energy change
njeffery
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6c686e7
fixed type introduced in last commit
njeffery
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f292121
Corrections to ensure BFB
njeffery
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ba610a2
Clean up ocean frazil routine
njeffery
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540ebe4
corrects typo in frazil routine
njeffery
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7754efc
Remove redundant newFrazilEnergy
njeffery
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cbe81bf
Added copilot suggestions
njeffery
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9ecd1da
Splits ocean coupling of freezemelt potential into frazil heat and melt
njeffery
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15d3cb4
Clean up coupler diagnostics for frazil
njeffery
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51d8b83
Adds index checks for perrWith indices
njeffery
committed
b3dc930
Update components/mpas-ocean/src/Registry.xml

njeffery
and
cbegeman
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3bf13b6
Changed registry field name and description
njeffery
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661ebaf
Removes space
njeffery
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893e102
Adds coupling diagnostics for moab
njeffery
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19f2d6d
Renamed frazil mass coupling fluxes
njeffery
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69b15d1