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UpWindCWC.F90
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UpWindCWC.F90
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Subroutine UpWindCWC(index,uLoadVar,dVar,VarEst,VarEstP,dt,dtday,HydroParam,MeshParam)
! This routine solves the Transport Equation usind a centered finite difference scheme for variables with Boundary Condition allowed.
! Called in routines: ABIOTICO, SALINITY
! Example:
! sDSal(I,J,K) == VarEst
! dVarSal == dVar
! sDSalP(I,J,K) == VarEstP
! sDSalP(I-1,J,K) == VarEstPIM
! sDSalP(I+1,J,K) == VarEstPIP
! sDSalP(I,J-1,K) == VarEstPJM
! sDSalP(I,J+1,K) == VarEstPJP
! sDSalP(I,J,K-1) == VarEstPKM
! sDSalP(I,J,K+1) == VarEstPKP
! INDEXCONT(ICEL,14) == index => 14
! uLoadVar == uDLoadSal
! sDSal0 == VarEstINI
Use MeshVars
Use Hydrodynamic
Implicit None
Real, Dimension(4):: ConcFace
Real:: CONCU,CONCD,DDCFace,DCDFace,Dispersion,Advection
Real:: DDCZ,DC2DZ2,DCDZU,DCDZD
Real:: V
Integer:: index,iElem,iEdge,Face,iLayer,Sig,l,r
Real:: NearZero = 1e-10
Real:: dt,dtday
type(MeshGridParam) :: MeshParam
type(HydrodynamicParam) :: HydroParam
Real, Dimension(MeshParam%KMax,MeshParam%nElem):: dVar,VarEst,VarEstP
Real, Dimension(MeshParam%KMax,MeshParam%nElem):: uLoadVar
Do iElem = 1,MeshParam%nElem
!If (iElem==11802) Then
! Continue
!EndIf
!
If (HydroParam%eta(iElem)-HydroParam%hb(iElem) <= HydroParam%PCRI+NearZero.or.HydroParam%etan(iElem)-HydroParam%hb(iElem)<= HydroParam%PCRI+NearZero) Then
VarEst(HydroParam%ElCapitalM(iElem),iElem) = VarEstP(HydroParam%ElCapitalM(iElem),iElem)
Cycle
EndIf
Do iLayer = HydroParam%ElSmallm(iElem), HydroParam%ElCapitalM(iElem)
! Horizontal Eddy-Diffusivity (Dispersion coefficient)
! Concentration in each face
DCDFace = 0.
Do iEdge = 1,4
Face = MeshParam%Edge(iEdge,iElem)
l = MeshParam%Left(Face)
r = MeshParam%Right(Face)
If ( r==0 .or.HydroParam%H(MeshParam%Edge(iEdge,iElem)) <= HydroParam%PCRI+NearZero) Then
ConcFace(iEdge) = VarEstP(iLayer,iElem)
DDCFace = 0.
DCDFace = DCDFace
Else
If (Sig(iElem,r,l)*(HydroParam%Theta*HydroParam%u(iLayer,Face)*HydroParam%DZjt(iLayer,Face)+(1.-HydroParam%Theta)*HydroParam%ut(iLayer,Face)*HydroParam%DZjt(iLayer,Face))>=0) Then
ConcFace(iEdge) = VarEstP(iLayer,iElem)
Else
If (iLayer<HydroParam%ElSmallm(MeshParam%Neighbor(iEdge,iElem))) Then
ConcFace(iEdge) = VarEstP(iLayer,iElem)
Else
ConcFace(iEdge) = VarEstP(iLayer,MeshParam%Neighbor(iEdge,iElem))
EndIf
EndIf
DDCFace = (0.5*(HydroParam%HorDiffusivity(2,iLayer,MeshParam%Neighbor(iEdge,iElem))+HydroParam%HorDiffusivity(2,iLayer,iElem)))
DCDFace = DCDFace + MeshParam%EdgeLength(Face)/MeshParam%CirDistance(Face)*HydroParam%DZjt(iLayer,Face)*DDCFace*(ConcFace(iEdge)-VarEstP(iLayer,iElem))
EndIf
EndDo
Dispersion = DCDFace/MeshParam%Area(iElem)
If ( HydroParam%ElSmallm(iElem) == HydroParam%ElCapitalM(iElem) ) Then ! Only One Vertical Layer
If (abs(-Sig(iElem,MeshParam%Right(MeshParam%Edge(1,iElem)),MeshParam%Left(MeshParam%Edge(1,iElem)))*(HydroParam%Theta*HydroParam%u(iLayer,MeshParam%Edge(1,iElem))*HydroParam%DZjt(iLayer,MeshParam%Edge(1,iElem))+(1.-HydroParam%Theta)*HydroParam%ut(iLayer,MeshParam%Edge(1,iElem))*HydroParam%DZjt(iLayer,MeshParam%Edge(1,iElem)))*MeshParam%dx*DT-Sig(iElem,MeshParam%Right(MeshParam%Edge(2,iElem)),MeshParam%Left(MeshParam%Edge(2,iElem)))*(HydroParam%Theta*HydroParam%u(iLayer,MeshParam%Edge(2,iElem))*HydroParam%DZjt(iLayer,MeshParam%Edge(2,iElem))+ (1.-HydroParam%Theta)*HydroParam%ut(iLayer,MeshParam%Edge(2,iElem))*HydroParam%DZjt(iLayer,MeshParam%Edge(2,iElem)))*MeshParam%dy*dt-Sig(iElem,MeshParam%Right(MeshParam%Edge(3,iElem)),MeshParam%Left(MeshParam%Edge(3,iElem)))*(HydroParam%Theta*HydroParam%u(iLayer,MeshParam%Edge(3,iElem))*HydroParam%DZjt(iLayer,MeshParam%Edge(3,iElem))+ (1.-HydroParam%Theta)*HydroParam%ut(iLayer,MeshParam%Edge(3,iElem))*HydroParam%DZjt(iLayer,MeshParam%Edge(3,iElem)))*MeshParam%dy*dt-Sig(iElem,MeshParam%Right(MeshParam%Edge(4,iElem)),MeshParam%Left(MeshParam%Edge(4,iElem)))*(HydroParam%Theta*HydroParam%u(iLayer,MeshParam%Edge(4,iElem))*HydroParam%DZjt(iLayer,MeshParam%Edge(4,iElem))+(1.-HydroParam%Theta)*HydroParam%ut(iLayer,MeshParam%Edge(4,iElem))*HydroParam%DZjt(iLayer,MeshParam%Edge(4,iElem)))*MeshParam%dy*dt- (HydroParam%eta(iElem)-HydroParam%etaplus(ielem)-HydroParam%etan(iElem))*MeshParam%dx*MeshParam%dy)>0.1) Then
VarEst(HydroParam%ElCapitalM(iElem),iElem) = VarEstP(HydroParam%ElCapitalM(iElem),iElem)
Cycle
EndIf
! Top
CONCU = VarEstP(iLayer,iElem)
! Bottom
CONCD = VarEstP(iLayer,iElem)
DC2DZ2 = 0.
! Turbulence Model (pegar referência)
DDCZ = 0.
! Transport Equation Solution for 2D
If (index== 0) Then !No boundary condition
Advection = 0.
Do iEdge = 1,4
Face = MeshParam%Edge(iEdge,iElem)
l = MeshParam%Left(Face)
r = MeshParam%Right(Face)
Advection = Advection + (MeshParam%EdgeLength(Face)*HydroParam%DZjt(iLayer,Face)*Sig(iElem,r,l)*(HydroParam%Theta*HydroParam%u(iLayer,Face)+(1.-HydroParam%Theta)*HydroParam%ut(iLayer,Face)))*ConcFace(iEdge)/MeshParam%Area(iElem)
EndDo
VarEst(iLayer,iElem) = MAX(NearZero,(DT*(Dispersion-Advection)+dtday*dVar(iLayer,iElem)*V(HydroParam%etan(iElem),HydroParam%hb(iElem))+VarEstP(iLayer,iElem)*V(HydroParam%etan(iElem),HydroParam%hb(iElem)))/V(HydroParam%eta(iElem)-HydroParam%etaplus(iElem),HydroParam%hb(iElem)))
Else
Advection = 0.
Do iEdge = 1,4
Face = MeshParam%Edge(iEdge,iElem)
l = MeshParam%Left(Face)
r = MeshParam%Right(Face)
If (HydroParam%IndexInflowEdge(Face) > 0.or.HydroParam%IndexWaterLevelEdge(Face) > 0) Then !Inflow/Outflow boundary condition
If (HydroParam%Theta*HydroParam%u(iLayer,Face)+(1.-HydroParam%Theta)*HydroParam%ut(iLayer,Face)>=0) Then ! Outflow Loading
Advection = Advection + (MeshParam%EdgeLength(Face)*HydroParam%DZjt(iLayer,Face)*Sig(iElem,r,l)*(HydroParam%Theta*HydroParam%u(iLayer,Face)+(1.-HydroParam%Theta)*HydroParam%ut(iLayer,Face)))*ConcFace(iEdge)/MeshParam%Area(iElem)
Else !InFlow Loading
Advection = Advection + (MeshParam%EdgeLength(Face)*HydroParam%DZjt(iLayer,Face)*Sig(iElem,r,l)*(HydroParam%Theta*HydroParam%u(iLayer,Face)+(1.-HydroParam%Theta)*HydroParam%ut(iLayer,Face)))*uLoadVar(iLayer,iElem)/MeshParam%Area(iElem)
EndIf
Else
Advection = Advection + (MeshParam%EdgeLength(Face)*HydroParam%DZjt(iLayer,Face)*Sig(iElem,r,l)*(HydroParam%Theta*HydroParam%u(iLayer,Face)+(1.-HydroParam%Theta)*HydroParam%ut(iLayer,Face)))*ConcFace(iEdge)/MeshParam%Area(iElem)
EndIf
EndDo
VarEst(iLayer,iElem) = MAX(NearZero,(DT*(Dispersion-Advection)+dtday*dVar(iLayer,iElem)*V(HydroParam%etan(iElem),HydroParam%hb(iElem))+VarEstP(iLayer,iElem)*V(HydroParam%etan(iElem),HydroParam%hb(iElem)))/V(HydroParam%eta(iElem)-HydroParam%etaplus(iElem),HydroParam%hb(iElem)))
EndIf
Else
If ( iLayer == HydroParam%ElSmallm(iElem) ) Then !Bottom layer
! Concentration in the Top layer
If (HydroParam%w(iLayer+1,iElem)>=0) Then
CONCU = VarEstP(iLayer,iElem) ! Top face concentration is equal to the concentration in the layer
Else
CONCU = VarEstP(iLayer+1,iElem) ! Top face concentration is equal to the concentration in the layer
EndIF
! Concentration in the Top Bottom layer
CONCD = VarEstP(iLayer,iElem)
! Vertical Diffusivity Flux in the top layer
DDCZ = HydroParam%VerEddyDiffCell(iLayer+1,iElem)
DCDZU = DDCZ*( VarEstP(iLayer+1,iElem) - VarEstP(iLayer,iElem) )/((HydroParam%DZit(iLayer,iElem)+HydroParam%DZit(iLayer+1,iElem))/2.)
!DCDZU = Max(0., DCDZU - 0.5*abs(MeshParam%Area(iElem)*HydroParam%w(iLayer+1,iElem)))
! Vertical Diffusivity Flux in the bottom layer
DCDZD = 0.
! Vertical gradient of Diffusivity
DC2DZ2 = DCDZU - DCDZD
! Transport Equation Solution
If (index== 0) Then !No boundary condition
Advection = 0.
Do iEdge = 1,4
Face = MeshParam%Edge(iEdge,iElem)
l = MeshParam%Left(Face)
r = MeshParam%Right(Face)
Advection = Advection + (MeshParam%EdgeLength(Face)*HydroParam%DZjt(iLayer,Face)*Sig(iElem,r,l)*(HydroParam%Theta*HydroParam%u(iLayer,Face)+(1.-HydroParam%Theta)*HydroParam%ut(iLayer,Face)))*ConcFace(iEdge)/MeshParam%Area(iElem)
EndDo
VarEst(iLayer,iElem) = MAX(NearZero,(DT*(Dispersion-Advection+DC2DZ2)+dtday*dVar(iLayer,iElem)*HydroParam%DZit(iLayer,iElem)+VarEstP(iLayer,iElem)*HydroParam%DZit(iLayer,iElem)-((HydroParam%Theta*HydroParam%w(iLayer+1,iElem)+(1.0d0-HydroParam%Theta)*HydroParam%wt(iLayer+1,iElem))*CONCU-(HydroParam%Theta*HydroParam%w(iLayer,iElem)+(1.0d0-HydroParam%Theta)*HydroParam%wt(iLayer,iElem))*CONCD)*DT)/HydroParam%DZit(iLayer,iElem))
Else
Advection = 0.
Do iEdge = 1,4
Face = MeshParam%Edge(iEdge,iElem)
l = MeshParam%Left(Face)
r = MeshParam%Right(Face)
If (HydroParam%IndexInflowEdge(Face) > 0.or.HydroParam%IndexWaterLevelEdge(Face) > 0) Then !Inflow/Outflow boundary condition
If (HydroParam%Theta*HydroParam%u(iLayer,Face)+(1.-HydroParam%Theta)*HydroParam%ut(iLayer,Face)>=0) Then ! Outflow Loading
Advection = Advection + (MeshParam%EdgeLength(Face)*HydroParam%DZjt(iLayer,Face)*Sig(iElem,r,l)*(HydroParam%Theta*HydroParam%u(iLayer,Face)+(1.-HydroParam%Theta)*HydroParam%ut(iLayer,Face)))*ConcFace(iEdge)/MeshParam%Area(iElem)
Else !InFlow Loading
Advection = Advection + (MeshParam%EdgeLength(Face)*HydroParam%DZjt(iLayer,Face)*Sig(iElem,r,l)*(HydroParam%Theta*HydroParam%u(iLayer,Face)+(1.-HydroParam%Theta)*HydroParam%ut(iLayer,Face)))*uLoadVar(iLayer,iElem)/MeshParam%Area(iElem)
EndIf
Else
Advection = Advection + (MeshParam%EdgeLength(Face)*HydroParam%DZjt(iLayer,Face)*Sig(iElem,r,l)*(HydroParam%Theta*HydroParam%u(iLayer,Face)+(1.-HydroParam%Theta)*HydroParam%ut(iLayer,Face)))*ConcFace(iEdge)/MeshParam%Area(iElem)
EndIf
EndDo
VarEst(iLayer,iElem) = MAX(NearZero,(DT*(Dispersion-Advection+DC2DZ2)+dtday*dVar(iLayer,iElem)*HydroParam%DZit(iLayer,iElem)+VarEstP(iLayer,iElem)*HydroParam%DZit(iLayer,iElem)-((HydroParam%Theta*HydroParam%w(iLayer+1,iElem)+(1.0d0-HydroParam%Theta)*HydroParam%wt(iLayer+1,iElem))*CONCU-(HydroParam%Theta*HydroParam%w(iLayer,iElem)+(1.0d0-HydroParam%Theta)*HydroParam%wt(iLayer,iElem))*CONCD)*DT)/HydroParam%DZit(iLayer,iElem))
EndIf
Elseif ( iLayer == HydroParam%ElCapitalM(iElem) ) Then !Surface layer
! Concentration in the Top layer
CONCU = VarEstP(iLayer,iElem) ! Up
! Concentration in the bottom layer
If (HydroParam%w(iLayer,iElem)>=0) Then
CONCD = VarEstP(iLayer-1,iElem)
Else
CONCD = VarEstP(iLayer,iElem)
EndIf
! Vertical Diffusivity Flux in the top layer
DCDZU = 0.
! Vertical Diffusivity Flux in the bottom layer
DDCZ = HydroParam%VerEddyDiffCell(iLayer,iElem)
DCDZD = DDCZ*( VarEstP(iLayer,iElem) - VarEstP(iLayer-1,iElem) )/((HydroParam%DZit(iLayer,iElem)+HydroParam%DZit(iLayer-1,iElem))/2.)
!DCDZD = Max(0., DCDZD - 0.5*abs(MeshParam%Area(iElem)*HydroParam%w(iLayer,iElem)))
! Vertical gradient of Diffusivity
DC2DZ2 = DCDZU - DCDZD
! Transport Equation Solution
If (index== 0) Then !No boundary condition
Advection = 0.
Do iEdge = 1,4
Face = MeshParam%Edge(iEdge,iElem)
l = MeshParam%Left(Face)
r = MeshParam%Right(Face)
Advection = Advection + (MeshParam%EdgeLength(Face)*HydroParam%DZjt(iLayer,Face)*Sig(iElem,r,l)*(HydroParam%Theta*HydroParam%u(iLayer,Face)+(1.-HydroParam%Theta)*HydroParam%ut(iLayer,Face)))*ConcFace(iEdge)/MeshParam%Area(iElem)
EndDo
VarEst(iLayer,iElem) = MAX(NearZero,(DT*(Dispersion-Advection+DC2DZ2)+dtday*dVar(iLayer,iElem)*HydroParam%DZit(iLayer,iElem)+VarEstP(iLayer,iElem)*HydroParam%DZit(iLayer,iElem) - ((HydroParam%Theta*HydroParam%w(iLayer+1,iElem)+(1.0d0-HydroParam%Theta)*HydroParam%wt(iLayer+1,iElem))*CONCU-(HydroParam%Theta*HydroParam%w(iLayer,iElem)+(1.0d0-HydroParam%Theta)*HydroParam%wt(iLayer,iElem))*CONCD)*DT)/HydroParam%DZit(iLayer,iElem))
Else
Advection = 0.
Do iEdge = 1,4
Face = MeshParam%Edge(iEdge,iElem)
l = MeshParam%Left(Face)
r = MeshParam%Right(Face)
If (HydroParam%IndexInflowEdge(Face) > 0.or.HydroParam%IndexWaterLevelEdge(Face) > 0) Then !Inflow/Outflow boundary condition
If (HydroParam%Theta*HydroParam%u(iLayer,Face)+(1.-HydroParam%Theta)*HydroParam%ut(iLayer,Face)>=0) Then ! Outflow Loading
Advection = Advection + (MeshParam%EdgeLength(Face)*HydroParam%DZjt(iLayer,Face)*Sig(iElem,r,l)*(HydroParam%Theta*HydroParam%u(iLayer,Face)+(1.-HydroParam%Theta)*HydroParam%ut(iLayer,Face)))*ConcFace(iEdge)/MeshParam%Area(iElem)
Else !InFlow Loading
Advection = Advection + (MeshParam%EdgeLength(Face)*HydroParam%DZjt(iLayer,Face)*Sig(iElem,r,l)*(HydroParam%Theta*HydroParam%u(iLayer,Face)+(1.-HydroParam%Theta)*HydroParam%ut(iLayer,Face)))*uLoadVar(iLayer,iElem)/MeshParam%Area(iElem)
EndIf
Else
Advection = Advection + (MeshParam%EdgeLength(Face)*HydroParam%DZjt(iLayer,Face)*Sig(iElem,r,l)*(HydroParam%Theta*HydroParam%u(iLayer,Face)+(1.-HydroParam%Theta)*HydroParam%ut(iLayer,Face)))*ConcFace(iEdge)/MeshParam%Area(iElem)
EndIf
EndDo
VarEst(iLayer,iElem) = MAX(NearZero,(DT*(Dispersion-Advection+DC2DZ2)+dtday*dVar(iLayer,iElem)*HydroParam%DZit(iLayer,iElem)+VarEstP(iLayer,iElem)*HydroParam%DZit(iLayer,iElem) - ((HydroParam%Theta*HydroParam%w(iLayer+1,iElem)+(1.0d0-HydroParam%Theta)*HydroParam%wt(iLayer+1,iElem))*CONCU-(HydroParam%Theta*HydroParam%w(iLayer,iElem)+(1.0d0-HydroParam%Theta)*HydroParam%wt(iLayer,iElem))*CONCD)*DT)/HydroParam%DZit(iLayer,iElem))
EndIf
Else !Intermediary layer
! Calcula a Concentração na camada
! Top
If (HydroParam%w(iLayer+1,iElem)>=0) Then
CONCU = VarEstP(iLayer,iElem) ! Top face concentration is equal to the concentration in the layer
Else
CONCU = VarEstP(iLayer+1,iElem) ! Top face concentration is equal to the concentration in the layer
EndIF
! Bottom
If (HydroParam%w(iLayer,iElem)>=0) Then
CONCD = VarEstP(iLayer-1,iElem)
Else
CONCD = VarEstP(iLayer,iElem)
EndIf
! Vertical Diffusivity Flux in the top layer
DDCZ = HydroParam%VerEddyDiffCell(iLayer+1,iElem)
DCDZU = DDCZ*( VarEstP(iLayer+1,iElem) - VarEstP(iLayer,iElem) )/((HydroParam%DZit(iLayer,iElem)+HydroParam%DZit(iLayer+1,iElem))/2.)
!DCDZU = Max(0., DCDZU - 0.5*abs(MeshParam%Area(iElem)*HydroParam%w(iLayer+1,iElem)))
! Vertical Diffusivity Flux in the bottom layer
DDCZ = HydroParam%VerEddyDiffCell(iLayer,iElem)
DCDZD = DDCZ*( VarEstP(iLayer,iElem) - VarEstP(iLayer-1,iElem) )/((HydroParam%DZit(iLayer,iElem)+HydroParam%DZit(iLayer-1,iElem))/2.)
!DCDZD = Max(0., DCDZD - 0.5*abs(MeshParam%Area(iElem)*HydroParam%w(iLayer,iElem)))
! Vertical gradient of Diffusivity
DC2DZ2 = DCDZU - DCDZD
! Transport Equation Solution
If (index== 0) Then !No boundary condition
Advection = 0.
Do iEdge = 1,4
Face = MeshParam%Edge(iEdge,iElem)
l = MeshParam%Left(Face)
r = MeshParam%Right(Face)
Advection = Advection + (MeshParam%EdgeLength(Face)*HydroParam%DZjt(iLayer,Face)*Sig(iElem,r,l)*(HydroParam%Theta*HydroParam%u(iLayer,Face)+(1.-HydroParam%Theta)*HydroParam%ut(iLayer,Face)))*ConcFace(iEdge)/MeshParam%Area(iElem)
EndDo
VarEst(iLayer,iElem) = MAX(NearZero,(DT*(Dispersion-Advection+DC2DZ2)+dtday*dVar(iLayer,iElem)*HydroParam%DZit(iLayer,iElem)+VarEstP(iLayer,iElem)*HydroParam%DZit(iLayer,iElem) - ((HydroParam%Theta*HydroParam%w(iLayer+1,iElem)+(1.0d0-HydroParam%Theta)*HydroParam%wt(iLayer+1,iElem))*CONCU-(HydroParam%Theta*HydroParam%w(iLayer,iElem)+(1.0d0-HydroParam%Theta)*HydroParam%wt(iLayer,iElem))*CONCD)*DT)/HydroParam%DZit(iLayer,iElem))
Else
Advection = 0.
Do iEdge = 1,4
Face = MeshParam%Edge(iEdge,iElem)
l = MeshParam%Left(Face)
r = MeshParam%Right(Face)
If (HydroParam%IndexInflowEdge(Face) > 0.or.HydroParam%IndexWaterLevelEdge(Face) > 0) Then !Inflow/Outflow boundary condition
If (HydroParam%Theta*HydroParam%u(iLayer,Face)+(1.-HydroParam%Theta)*HydroParam%ut(iLayer,Face)>=0) Then ! Outflow Loading
Advection = Advection + (MeshParam%EdgeLength(Face)*HydroParam%DZjt(iLayer,Face)*Sig(iElem,r,l)*(HydroParam%Theta*HydroParam%u(iLayer,Face)+(1.-HydroParam%Theta)*HydroParam%ut(iLayer,Face)))*ConcFace(iEdge)/MeshParam%Area(iElem)
Else !InFlow Loading
Advection = Advection + (MeshParam%EdgeLength(Face)*HydroParam%DZjt(iLayer,Face)*Sig(iElem,r,l)*(HydroParam%Theta*HydroParam%u(iLayer,Face)+(1.-HydroParam%Theta)*HydroParam%ut(iLayer,Face)))*uLoadVar(iLayer,iElem)/MeshParam%Area(iElem)
EndIf
Else
Advection = Advection + (MeshParam%EdgeLength(Face)*HydroParam%DZjt(iLayer,Face)*Sig(iElem,r,l)*(HydroParam%Theta*HydroParam%u(iLayer,Face)+(1.-HydroParam%Theta)*HydroParam%ut(iLayer,Face)))*ConcFace(iEdge)/MeshParam%Area(iElem)
EndIf
EndDo
VarEst(iLayer,iElem) = MAX(NearZero,(DT*(Dispersion-Advection+DC2DZ2)+dtday*dVar(iLayer,iElem)*HydroParam%DZit(iLayer,iElem)+VarEstP(iLayer,iElem)*HydroParam%DZit(iLayer,iElem) - ((HydroParam%Theta*HydroParam%w(iLayer+1,iElem)+(1.0d0-HydroParam%Theta)*HydroParam%wt(iLayer+1,iElem))*CONCU-(HydroParam%Theta*HydroParam%w(iLayer,iElem)+(1.0d0-HydroParam%Theta)*HydroParam%wt(iLayer,iElem))*CONCD)*DT)/HydroParam%DZit(iLayer,iElem))
EndIf
EndIf
EndIf
EndDo
! 3.1 Copy concentration Above the Free-Surface
Do iLayer = HydroParam%ElCapitalM(iElem) + 1, MeshParam%KMAX
VarEst(iLayer,iElem) = VarEst(HydroParam%ElCapitalM(iElem),iElem)
EndDo
! 3.2 Nullify Velocities Below the Bottom (u=0)
Do iLayer = 1, HydroParam%ElSmallm(iElem) - 1
VarEst(iLayer,iElem) = VarEst(HydroParam%ElSmallm(iElem),iElem)
EndDo
EndDo
! preencher valores fora dos limites da camada
Return
End Subroutine UpWindCWC