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Adding iceberg terms to sea ice momentum equation. #2

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Adding iceberg terms to sea ice momentum equation. #2

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4 changes: 4 additions & 0 deletions src/core_seaice/shared/mpas_seaice_berg_velocity_solver.F
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Original file line number Diff line number Diff line change
Expand Up @@ -1846,6 +1846,10 @@ subroutine seaice_berg_forcing_for_ice(domain)
call MPAS_pool_get_array(bergVelocitySolverPool, "bergStressU", bergStressU)
call MPAS_pool_get_array(bergVelocitySolverPool, "bergStressV", bergStressV)

! initialize
bergStressU(:) = 0.0_RKIND
bergStressV(:) = 0.0_RKIND

! interpolate cell to vertex
call seaice_interpolate_cell_to_vertex(&
meshPool, &
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15 changes: 11 additions & 4 deletions src/core_seaice/shared/mpas_seaice_velocity_solver.F
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Expand Up @@ -2731,7 +2731,8 @@ subroutine solve_velocity_revised(domain)

type(MPAS_pool_type), pointer :: &
velocitySolverPool, &
icestatePool
icestatePool, &
bergVelocitySolverPool

integer, dimension(:), pointer :: &
solveVelocity
Expand All @@ -2751,7 +2752,9 @@ subroutine solve_velocity_revised(domain)
surfaceTiltForceV, &
oceanStressU, &
oceanStressV, &
oceanStressCoeff
oceanStressCoeff, &
bergStressU, &
bergStressV

real(kind=RKIND), pointer :: &
dynamicsTimeStep
Expand All @@ -2778,6 +2781,7 @@ subroutine solve_velocity_revised(domain)

call MPAS_pool_get_subpool(block % structs, "velocity_solver", velocitySolverPool)
call MPAS_pool_get_subpool(block % structs, "icestate", icestatePool)
call MPAS_pool_get_subpool(block % structs, "berg_velocity_solver", bergVelocitySolverPool)

call MPAS_pool_get_array(icestatePool, "totalMassVertex", totalMassVertex)

Expand All @@ -2798,6 +2802,9 @@ subroutine solve_velocity_revised(domain)
call MPAS_pool_get_array(velocitySolverPool, "oceanStressCoeff", oceanStressCoeff)
call MPAS_pool_get_array(velocitySolverPool, "dynamicsTimeStep", dynamicsTimeStep)

call MPAS_pool_get_array(bergVelocitySolverPool, "bergStressU", bergStressU)
call MPAS_pool_get_array(bergVelocitySolverPool, "bergStressV", bergStressV)

do iVertex = 1, nVerticesSolve

if (solveVelocity(iVertex) == 1) then
Expand All @@ -2816,12 +2823,12 @@ subroutine solve_velocity_revised(domain)

! right hand side of matrix solve
rightHandSide(1) = stressDivergenceU(iVertex) + airStressVertexU(iVertex) + surfaceTiltForceU(iVertex) + &
oceanStressCoeff(iVertex) * oceanStressU(iVertex) + &
oceanStressCoeff(iVertex) * oceanStressU(iVertex) + bergStressU(iVertex) + &
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@darincomeau darincomeau May 8, 2018 •
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The terms bergStressU, bergStressV are in units kg m s^{-2}, and I believe this (rightHandSide) is the appropriate place to put them.

These terms are calculated when namelist config_berg_seaice_interaction = .true., and are calculated in the subroutine seaice_run_berg_postdynamics.

(totalMassVertex(iVertex) * (numericalInertiaCoefficient * uVelocity(iVertex) + &
uVelocityInitial(iVertex))) / dynamicsTimeStep

rightHandSide(2) = stressDivergenceV(iVertex) + airStressVertexV(iVertex) + surfaceTiltForceV(iVertex) + &
oceanStressCoeff(iVertex) * oceanStressV(iVertex) + &
oceanStressCoeff(iVertex) * oceanStressV(iVertex) + bergStressV(iVertex) + &
(totalMassVertex(iVertex) * (numericalInertiaCoefficient * vVelocity(iVertex) + &
vVelocityInitial(iVertex))) / dynamicsTimeStep

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