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Add debris-bed friction slip law #135

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fa6b5ca
Add new spatial bed roughness variable for reg. Coulomb friction
matthewhoffman Oct 29, 2024
1c01189
Fixing typos and exporting effective pressure field
mperego Nov 1, 2024
079213d
Debris-friction slip law interface
jeremy-brooks-1 Dec 20, 2024
4b67208
Adding spatial debris-bed friction fields to MPAS
jeremy-brooks-1 Aug 18, 2025
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4 changes: 4 additions & 0 deletions components/mpas-albany-landice/src/Registry.xml
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Original file line number Diff line number Diff line change
Expand Up @@ -826,6 +826,7 @@
<!-- They do not need to be in the input file for the SIA dycore, and will be ignored if they are. -->
<var name="beta" packages="higherOrderVelocity"/>
<var name="muFriction" packages="higherOrderVelocity"/>
<var name="bedRoughnessRC" packages="higherOrderVelocity"/>
<var name="effectivePressure" packages="higherOrderVelocity"/>
<var name="dirichletVelocityMask" packages="higherOrderVelocity"/>
<var name="uReconstructX" packages="higherOrderVelocity"/>
Expand Down Expand Up @@ -1638,6 +1639,9 @@ is the value of that variable from the *previous* time level!
<var name="stiffnessFactor" type="real" dimensions="nCells Time" default_value="1.0"
description="stiffness factor applied to effective viscosity in higher-order velocity solve"
/>
<var name="bedRoughnessRC" type="real" dimensions="nCells Time" units="m" default_value="1.0"
description="input value of bed roughness parameter for regularized Coulomb basal friction. This corresponds to lambda_max / m_max."
/>
<var name="exx" type="real" dimensions="nCells Time" units="s^-1"
description="x-component of depth-integrated strain rate"
/>
Expand Down
33 changes: 28 additions & 5 deletions components/mpas-albany-landice/src/mode_forward/Interface_velocity_solver.cpp
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Expand Up @@ -69,7 +69,7 @@ std::vector<int> indexToTriangleID,
std::vector<int> indexToVertexID, vertexToFCell, vertexProcIDs, triangleToFVertex, indexToEdgeID, edgeToFEdge,
fVertexToTriangleID, fCellToVertex, iceMarginEdgesLIds, dirichletNodesIDs;
std::vector<double> dissipationHeatOnPrisms, velocityOnVertices, velocityOnCells,
elevationData, thicknessData, betaData, bedTopographyData, stiffnessFactorData, effecPressData, muFrictionData, temperatureDataOnPrisms, smbData, thicknessOnCells, bodyForceOnBasalCell;
elevationData, thicknessData, betaData, bedTopographyData, stiffnessFactorData, effecPressData, muFrictionData, bedRoughnessData, temperatureDataOnPrisms, smbData, thicknessOnCells, bodyForceOnBasalCell;
std::vector<bool> isVertexBoundary, isBoundaryEdge;

// only needed for creating ASCII mesh
Expand Down Expand Up @@ -240,7 +240,8 @@ void velocity_solver_init_fo(double const *levelsRatio_F) {
void velocity_solver_solve_fo(double const* bedTopography_F, double const* lowerSurface_F,
double const* thickness_F, double * beta_F,
double const* smb_F, double const* temperature_F, double const* stiffnessFactor_F,
double const* effecPress_F, double const* muFriction_F,
double* effecPress_F, double const* muFriction_F,
double const* bedRoughnessRC_F,
double* const dirichletVelocityXValue, double* const dirichletVelocitYValue,
double* u_normal_F, double* bodyForce_F, double* dissipation_heat_F,
double* xVelocityOnCell, double* yVelocityOnCell, double const* deltat,
Expand Down Expand Up @@ -269,7 +270,7 @@ void velocity_solver_solve_fo(double const* bedTopography_F, double const* lower
if (!isDomainEmpty) {

std::vector<std::pair<int, int> > marineBdyExtensionMap;
importFields(marineBdyExtensionMap, bedTopography_F, lowerSurface_F, thickness_F, beta_F, stiffnessFactor_F, effecPress_F, muFriction_F, temperature_F, smb_F, minThickness);
importFields(marineBdyExtensionMap, bedTopography_F, lowerSurface_F, thickness_F, beta_F, stiffnessFactor_F, effecPress_F, muFriction_F, bedRoughnessRC_F, temperature_F, smb_F, minThickness);

std::vector<double> regulThk(thicknessData);
for (int index = 0; index < nVertices; index++)
Expand All @@ -286,7 +287,7 @@ void velocity_solver_solve_fo(double const* bedTopography_F, double const* lower
Ordering, first_time_step, indexToVertexID, indexToTriangleID, minBeta,
regulThk, levelsNormalizedThickness, elevationData, thicknessData,
betaData, bedTopographyData, smbData,
stiffnessFactorData, effecPressData, muFrictionData,
stiffnessFactorData, effecPressData, muFrictionData, bedRoughnessData,
temperatureDataOnPrisms, bodyForceOnBasalCell, dissipationHeatOnPrisms, velocityOnVertices,
albany_error, dt);
*error=albany_error;
Expand All @@ -299,6 +300,8 @@ void velocity_solver_solve_fo(double const* bedTopography_F, double const* lower
}
exportBeta(beta_F);

exportEffectivePressure(effecPress_F);

mapVerticesToCells(velocityOnVertices, &velocityOnCells[0], 2, nLayers,
Ordering);

Expand Down Expand Up @@ -1117,6 +1120,7 @@ double signedTriangleAreaOnSphere(const double* x, const double* y,

void importFields(std::vector<std::pair<int, int> >& marineBdyExtensionMap, double const* bedTopography_F, double const * lowerSurface_F, double const * thickness_F,
double const * beta_F, double const* stiffnessFactor_F, double const* effecPress_F, double const* muFriction_F,
double const* bedRoughnessRC_F,
double const * temperature_F, double const * smb_F, double eps) {

int vertexLayerShift = (Ordering == 0) ? 1 : nLayers + 1;
Expand All @@ -1131,6 +1135,8 @@ void importFields(std::vector<std::pair<int, int> >& marineBdyExtensionMap, dou
effecPressData.assign(nVertices, 1e10);
if (muFriction_F!= 0)
muFrictionData.assign(nVertices, 1e10);
if (bedRoughnessRC_F!= 0)
bedRoughnessData.assign(nVertices, 1e10);
if(temperature_F != 0)
temperatureDataOnPrisms.assign(nLayers * nTriangles, 1e10);
if (smb_F != 0)
Expand All @@ -1153,6 +1159,8 @@ void importFields(std::vector<std::pair<int, int> >& marineBdyExtensionMap, dou
effecPressData[index] = effecPress_F[iCell] / unit_length;
if (muFriction_F != 0)
muFrictionData[index] = muFriction_F[iCell];
if (bedRoughnessRC_F != 0)
bedRoughnessData[index] = bedRoughnessRC_F[iCell] / unit_length;
}

int lElemColumnShift = (Ordering == 1) ? 1 : nTriangles;
Expand Down Expand Up @@ -1361,6 +1369,18 @@ void exportBeta(double * beta_F) {
allToAll (beta_F, sendCellsList_F, recvCellsList_F, 1);
}

void exportEffectivePressure(double * effecPress_F) {
std::fill(effecPress_F, effecPress_F + nCells_F, 0.);
for (int index = 0; index < nVertices; index++) {
int fCell = vertexToFCell[index];
effecPress_F[fCell] = effecPressData[index] * unit_length;
}
#ifdef changeTrianglesOwnership
allToAll (effecPress_F, &sendCellsListReversed, &recvCellsListReversed, 1);
#endif
allToAll (effecPress_F, sendCellsList_F, recvCellsList_F, 1);
}

void createReducedMPI(int nLocalEntities, MPI_Comm& reduced_comm_id) {
int numProcs, me;
if (reduced_comm_id != MPI_COMM_NULL)
Expand Down Expand Up @@ -1630,6 +1650,7 @@ bool belongToTria(double const* x, double const* t, double bcoords[3], double ep
double const* surfaceAirTemperature_F, double const* basalHeatFlux_F,
double const* stiffnessFactor_F,
double const* effecPress_F, double const* muFriction_F,
double const* bedRoughnessRC_F,
double const* thickness_F, double const* thicknessUncertainty_F,
double const* smb_F, double const* smbUncertainty_F,
double const* bmb_F, double const* bmbUncertainty_F,
Expand Down Expand Up @@ -1715,7 +1736,8 @@ bool belongToTria(double const* x, double const* t, double bcoords[3], double ep

std::vector<std::pair<int, int> > marineBdyExtensionMap; // local map to be created by importFields
importFields(marineBdyExtensionMap, bedTopography_F, lowerSurface_F, thickness_F, beta_F,
stiffnessFactor_F, effecPress_F, muFriction_F, temperature_F, smb_F, minThickness);
stiffnessFactor_F, effecPress_F, muFriction_F, bedRoughnessRC_F,
temperature_F, smb_F, minThickness);

import2DFieldsObservations(marineBdyExtensionMap,
thicknessUncertainty_F,
Expand Down Expand Up @@ -1760,6 +1782,7 @@ bool belongToTria(double const* x, double const* t, double bcoords[3], double ep
write_ascii_mesh_field(betaData, "beta");
write_ascii_mesh_field(muFrictionData, "mu");
write_ascii_mesh_field(muLogData, "mu_log");
write_ascii_mesh_field(bedRoughnessData, "bed_roughness");

write_ascii_mesh_field(stiffnessFactorData, "stiffening_factor");
write_ascii_mesh_field(stiffnessLogData, "stiffening_factor_log");
Expand Down
9 changes: 6 additions & 3 deletions components/mpas-albany-landice/src/mode_forward/Interface_velocity_solver.hpp
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Expand Up @@ -90,7 +90,7 @@ void velocity_solver_solve_l1l2(double const* lowerSurface_F,

void velocity_solver_solve_fo(double const* bedTopography_F, double const* lowerSurface_F,
double const* thickness_F, double * beta_F, double const* smb_F, double const* temperature_F, double const* stiffnessFactor_F,
double const* effecPress_F, double const* muFriction_F,
double* effecPress_F, double const* muFriction_F, double const* bedRoughnessRC_F,
double* const dirichletVelocityXValue = 0, double* const dirichletVelocitYValue = 0,
double* u_normal_F = 0, double* bodyForce_F = 0, double* dissipation_heat_F = 0,
double* xVelocityOnCell = 0, double* yVelocityOnCell = 0, double const * deltat = 0,
Expand Down Expand Up @@ -134,6 +134,7 @@ void write_ascii_mesh(int const* indexToCellID_F,
double const* surfaceAirTemperature_F, double const* basalHeatFlux_F,
double const* stiffnessFactor_F,
double const* effecPress_F, double const* muFriction_F,
double const* bedRoughnessRC_F,
double const* thickness_F, double const* thicknessUncertainty_F,
double const* smb_F, double const* smbUncertainty_F,
double const* bmb_F, double const* bmbUncertainty_F,
Expand Down Expand Up @@ -161,8 +162,9 @@ extern void velocity_solver_solve_fo__(int nLayers, int nGlobalVertices,
const std::vector<double>& bedTopographyData,
const std::vector<double>& smbData,
const std::vector<double>& stiffnessFactorData,
const std::vector<double>& effecPressData,
std::vector<double>& effecPressData,
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@matthewhoffman matthewhoffman Aug 18, 2025

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@mperego , was this change intentional?

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@mperego mperego Aug 18, 2025

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Yes. Now Albany can return the effective pressure used (e.g., the open-connection one).

const std::vector<double>& muFrictionData,
const std::vector<double>& bedRoughnessData,
const std::vector<double>& temperatureDataOnPrisms,
std::vector<double>& bodyForceOnBasalCell,
std::vector<double>& dissipationHeatOnPrisms,
Expand Down Expand Up @@ -207,7 +209,7 @@ void createReducedMPI(int nLocalEntities, MPI_Comm& reduced_comm_id);

void importFields(std::vector<std::pair<int, int> >& marineBdyExtensionMap,
double const* bedTopography_F, double const* lowerSurface_F, double const* thickness_F,
double const* beta_F = 0, double const* stiffnessFactor_F = 0, double const* effecPress_F = 0, double const* muFriction_F = 0, double const* temperature_F = 0, double const* smb_F = 0, double eps = 0);
double const* beta_F = 0, double const* stiffnessFactor_F = 0, double const* effecPress_F = 0, double const* muFriction_F = 0, double const* bedRoughness_F = 0, double const* temperature_F = 0, double const* smb_F = 0, double eps = 0);

void import2DFieldsObservations(std::vector<std::pair<int, int> >& marineBdyExtensionMap,
double const * lowerSurface_F,
Expand All @@ -231,6 +233,7 @@ std::vector<int> extendMaskByOneLayer(int const* verticesMask_F);
void exportDissipationHeat(double * dissipationHeat_F);
void exportBodyForce(double * bodyForce_F);
void exportBeta(double * beta_F);
void exportEffectivePressure(double * effecPress_F);

void get_prism_velocity_on_FEdges(double* uNormal,
const std::vector<double>& velocityOnCells,
Expand Down
6 changes: 6 additions & 0 deletions components/mpas-albany-landice/src/mode_forward/mpas_li_velocity_external.F
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Expand Up @@ -452,6 +452,7 @@ subroutine li_velocity_external_solve(meshPool, geometryPool, thermalPool, hydro
real (kind=RKIND), dimension(:), pointer :: effectivePressure
real (kind=RKIND), dimension(:), pointer :: effectivePressureLimited
real (kind=RKIND), dimension(:), pointer :: muFriction
real (kind=RKIND), dimension(:), pointer :: bedRoughnessRC
real (kind=RKIND), pointer :: deltat
integer, dimension(:), pointer :: vertexMask, cellMask, edgeMask
integer, dimension(:,:), pointer :: dirichletVelocityMask
Expand Down Expand Up @@ -516,6 +517,7 @@ subroutine li_velocity_external_solve(meshPool, geometryPool, thermalPool, hydro
call mpas_pool_get_array(velocityPool, 'drivingStressVert', drivingStressVert)
call mpas_pool_get_array(velocityPool, 'drivingStress', drivingStress)
call mpas_pool_get_array(velocityPool, 'muFriction', muFriction)
call mpas_pool_get_array(velocityPool, 'bedRoughnessRC', bedRoughnessRC)
call mpas_pool_get_array(velocityPool, 'anyDynamicVertexMaskChanged', anyDynamicVertexMaskChanged)
call mpas_pool_get_array(velocityPool, 'dirichletMaskChanged', dirichletMaskChanged)
call mpas_pool_get_array(velocityPool, 'dirichletVelocityMask', dirichletVelocityMask, timeLevel = 1)
Expand Down Expand Up @@ -598,6 +600,7 @@ subroutine li_velocity_external_solve(meshPool, geometryPool, thermalPool, hydro
call velocity_solver_solve_FO(bedTopography, lowerSurface, thickness, &
betaSolve, sfcMassBal, temperature, stiffnessFactor, &
effectivePressureLimited, muFriction, &
bedRoughnessRC, &
uReconstructX, uReconstructY, & ! Dirichlet boundary values to apply where dirichletVelocityMask=1
normalVelocity, drivingStressVert, dissipationVertexField % array, uReconstructX, uReconstructY, & ! return values
deltat, albanyVelocityError) ! return values
Expand Down Expand Up @@ -787,6 +790,7 @@ subroutine li_velocity_external_write_albany_mesh(domain)
real (kind=RKIND), dimension(:), pointer :: stiffnessFactor
real (kind=RKIND), dimension(:), pointer :: effectivePressure
real (kind=RKIND), dimension(:), pointer :: muFriction
real (kind=RKIND), dimension(:), pointer :: bedRoughnessRC
integer, dimension(:,:), pointer :: dirichletVelocityMask
type (mpas_pool_type), pointer :: meshPool, geometryPool, thermalPool, observationsPool, velocityPool, scratchPool, hydroPool
real (kind=RKIND), pointer :: config_sea_level, config_ice_density, config_ocean_density
Expand Down Expand Up @@ -848,6 +852,7 @@ subroutine li_velocity_external_write_albany_mesh(domain)
! Velocity variables
call mpas_pool_get_array(velocityPool, 'beta', beta)
call mpas_pool_get_array(velocityPool, 'muFriction', muFriction)
call mpas_pool_get_array(velocityPool, 'bedRoughnessRC', bedRoughnessRC)
call mpas_pool_get_array(velocityPool, 'dirichletVelocityMask', dirichletVelocityMask, timeLevel = 1)
call mpas_pool_get_array(velocityPool, 'stiffnessFactor', stiffnessFactor)

Expand Down Expand Up @@ -901,6 +906,7 @@ subroutine li_velocity_external_write_albany_mesh(domain)
surfaceAirTemperature, basalHeatFlux, &
stiffnessFactor, &
effectivePressure, muFriction, &
bedRoughnessRC, &
thickness, thicknessUncertainty, &
sfcMassBal, sfcMassBalUncertainty, &
floatingBasalMassBal, floatingBasalMassBalUncertainty, &
Expand Down